This is an HTML version of an attachment to the Official Information request 'Criteria for duplicative emergency alerts'.
Summary of TEP and National Controller Discussions Kamchatka Earthquake and 
Tsunami 30 July – 4 August 2025 

Overview 
The Tsunami Expert Panel (TEP) provides the scientific analysis for tsunami risk to New Zealand 
and is hosted by Earth Sciences New Zealand (ESNZ). 
This is delivered via two mechanisms: 
1982
• Advice provided by ESNZ’s National Geohazard Monitoring Centre (NGMC) direct y to
NEMA’s Monitoring, Alerting and Reporting (MAR) Centre. This includes the forecast
Act 
maps and Event Arrival Time information.
• Phone calls between the TEP and the National Controller to discuss the analysis,
forward assessments, and to provide the opportunity to ask questions. This helps
inform NEMA’s decision making.
A total of 10 phone calls were conducted between the TEP and NEMA for this event, 
summarised below. 
30 July 1335hrs 
Information 
The EQ is expected to be upgraded from 8.7M to 8.8M. The modelling is indicating a beach and 
marine threat for the entire country, including the Chatham Islands. The Chatham Islands is 
likely to receive the strongest tsunami waves, getting close to a land threat at 0.8m. 
The modelling is not currently showing a land threat, but it remains a possibility. They will stick 
with a beach and marine threat assessment for now, noting the next update is likely to include 
Official 
actual data, as well as modelling. 
the 
30 July 1940hrs 
Still expecting to see beach and marine impacts, including the Chatham Islands, but the 
Scientist in Charge overnight will contact me if this looks like it will escalate to a land threat. 
under the Official Information Act 1982
under 
The first wave arrivals are expected around midnight, and the DART Buoys will give an early 
indication of their arrival from around 9pm. They may indicate an earlier de-escalation for the 
West Coast but there is likely to be some beach and marine threat for parts of the country going 
well into tomorrow. The picture will become clearer overnight. 
30 July 2300hrs 
No change to the threat area being all of New Zealand coasts for beach and marine. The models 
Released 
are looking good with the data matching the models across the Pacific. The current threat 
model will now remain in place until midday tomorrow. 

 
It is expected there will be de-escalation from midday through to midnight, zone by zone, 
starting on the West Coast. Some areas could remain under threat for as long as two days from 
the earthquake occurring. 
 
31 July 0845hrs 
No change to the current threat map and it remains valid until midday. 
Tsunami gauges around New Zealand are showing tsunami waves, some as high as 30cm, 
1982
therefore they could be higher along the coast. The Chatham Islands data is as 50cm and 
increasing. Dunedin is also increasing. 
Some de-escalation can be expected from midday. Wellington is expected to experience waves 
Act 
for longer, while Kapiti may de-escalate earlier. 
 
31 July 1150hrs 
Continues to be the same level of threat for the whole country. Criteria for de-escalation for the 
west coasts of both islands is expected to be met around mid-afternoon. 
The Chatham Islands model ing is showing similar arrivals to earlier to arrive overnight. 
Expecting to receive reflections off South America, possibly overnight for the East Coast. 
Information 
 
31 July 1500hrs 
The tide gauges for the west coast of the South Island are measuring at just below beach and 
marine thresholds. 
Official 
The west coast of the North Island is trending down. The east coast of both islands is expected 
to receive reflections from South America. There will be a lull and it wil  pick up again overnight. 
the 
 
31 July 1900hrs 
De-escalation of most of the west coast of the South Island. Things haven’t changed a lot, it’s 
stable and satisfied it’s not going to get any worse. Waiting on reflections on South America to 
under the Official Information Act 1982
under 
arrive and there could still be spots that exceed the 30cm beach and marine threshold. It is 
expected that more zones will be de-escalated tomorrow morning. 
 
1 Aug 0745hrs 
All of New Zealand has had its threat de-escalated, except for the Chatham Islands. The largest 
wave arrivals on the Chatham Islands have been from the reflected waves off South America. 
Released 
Beach and marine tsunami conditions were observed on the east coast of the South Island 
overnight, with the largest waves heights in Gisborne. 
There remains a low level of activity across the east coast, but below the beach and marine 
threat threshold. 
 

1 Aug 1250hrs 
All of New Zealand has been de-escalated and there is no longer considered to be a beach and 
marine threat. 
Strong currents are still expected to be observed over the weekend, but the tsunami threat has 
passed. The TEP is standing down for the weekend. 
4 Aug 1020hrs 
Strong currents were observed over the weekend and all activity has now passed. The TEP is 
closing the event. 
under the Official Information Act 1982
Released 

Date
Time in 24hr Format
Source
Category
Description
Comment
Item Type
Path
TSUNAMI MESSAGE NUMBER 1
1982
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
  * MAGNITUDE     8.0
 * ORIGIN TIME   2325 UTC JUL 29 2025
 * COORDINATES   52.2 NORTH 160.0 EAST
Act 
 * DEPTH         74 KM / 46 MILES
30/07/2025 1135
PTWC
PTWC TSUNAMI THREAT MESSAGE
 * LOCATION      OFF THE EAST COAST OF KAMCHATKA RUSSIA
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Decision made to open the HNF as event met distant threshold for tsunami threat to NZ approx 12hr wave 
30/07/2025 1138
MAR Centre
Decision
time. Website updated with Intital Large Pacific EQ being assessed. 
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
30/07/2025 1139
MAR Centre
Social Media Update
Website updated with Messaging. 
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
National Advisory Message No: 1: Large Pacific Earthquake Being Assessed Issued 1 :37 30 July 2025
30/07/2025 1140
Whispir
National Advisory
Item
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First cal  with NGMC: They have advised they are aware of the EQ event  Seismic
data has not yet reached NZ instruments. Once the seismic sign ls reach NZ,
Information 
NGMC will be able to do their assessments. NGMC SDO advised. TEP not
activated at this stage. Next comms 30mins 1210h
30/07/2025 1143
NGMC
Phone Cal
Item
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30/07/2025 1153
NGMC
EAT
Event Analysis #1: No threat to New Zeal nd. TEP will not be activated, but NGMC will keep an eye on it.
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2nd cal  with NGMC: NGMC h ve a p eferred magnitude of M8.0. EAT has been
received.. NGMC have determ ned that there is NO tsunami threat to NZ. TEP
Official 
will NOT be activated, however NGMC will have enhanced monitoring to keep
an eye on it
30/07/2025 1156
NGMC
Phone Cal
Item
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ecision made to send NA: No Tsunami threat to NZ, based off information and
the 
EAT  eceived from NGMC, social media will also be updated to reflect this
30/07/2025 1156
MAR Watch Leader
Decision
Item
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National Advisory: Message No: 2 No Tsunami Threat to New Zealand Issued 11:59 30 July 2025
30/07/2025 1159
Whispir
National Advis ry
Item
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30/07/2025 1203
MAR Watch Leader
Social M dia Update
Webiste updated with NA - No tsunami Threat to NZ
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
under the Official Information Act 1982
under 
Released 

TSUNAMI MESSAGE NUMBER 2PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
1982
  * MAGNITUDE      8.7
  * ORIGIN TIME    2325 UTC JUL 29 2025
Act 
  * COORDINATES    52.2 NORTH  160.0 EAST
  * DEPTH          74 KM / 46 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
30/07/2025 1218
PTWC
PTWC TSUNAMI THREAT MESSAGE
Item
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Event Analysis #2 
TEP wil  be activated at 1300 NZT. DARTs NZE, NZF, NZG, NZH, NZI and NZL activated
30/07/2025 1232
NGMC
EAT
Item
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National Advisory Message No: 3 Large Pacific Earthquake Being Re-As essed  Issued 12.35 NZST 30 July 
2025
30/07/2025 1235
Whispir
National Advisory
Item
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Information 
30/07/2025 1238
MAR Watch Leader
Decision
Decision Made send AD HOC Earthquake being re a sessed message, update on social media to fol ow
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Decision made to send NA Beach and Marine  hreat message based off below forecast map , social media 
will be updated with the warning message next comms from NGMC will be at 1300hrs and TEP are 
activated and meeting at 1300hrs 
30/07/2025 1245
MAR Watch Leader
Decision
Item
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NATIONAL ADVISORY Message N : 4: TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS 
AND UNPREDICTA LE SURGES AT THE SHORE Issued 12:57 30 July 2025
30/07/2025 1257
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Official 
Cal  from NGMC: No new info from the last EAT. TEP are meeting now. DARTs NZE, NZF, NZG, NZH, NZI 
30/07/2025 1300
NGMC
Phone Cal
and NZL ac ivated seismical y. next comms 30 mins 1330hrs or unless TEP makes a decision prior.
Item
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the 
Soci l media updated with NA Tsunami activity – expect strong and unusual currents and unpredictable 
30/07/2025 1303
MAR On-Cal  Chat
Update
surges at the shore messaging
Item
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Website updated and socials updated with strong and unusual currents.
30/07/2025 1304
MAR On-Cal  Chat
Update
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
under the Official Information Act 1982
under 
Released 

TSUNAMI MESSAGE NUMBER 3
1982
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
Act 
  * MAGNITUDE      8.7
  * ORIGIN TIME    2325 UTC JUL 29 2025
  * COORDINATES    52.2 NORTH  160.0 EAST
  * DEPTH          74 KM / 46 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
30/07/2025 1310
PTWC
PTWC TSUNAMI THREAT MESSAGE
Including Wave Arrival times.
Item
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Converted Wave Arrival times. 
30/07/2025 1313
Item
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Event Analysis # 3• Can confirm tsunami generated. Expec  Beach and Marine threat for the entire country.
• Some areas are edging towards land threats. These are Chat am Island, Christchurch, Banks Peninsula 
Information 
area, Northland.
• Local CDEMs should be aware of their local hotsp ts w h a Beach and Marine threat in place.
• TEP is keeping close eye of incoming dat  and may update the current map when need be.
• TEP will meet again at 15:00
30/07/2025 1337
NGMC
EAT
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Cal  from NGMC: Confirmed tsunam  generated near the EQ site. Expected beach and marine for entire 
country including th  Chath m Isl nds.
TEP meeting again at 1500hrs when more information regarding the threat is available. Al  DART BOUYS 
30/07/2025 1339
NGMC
Phone Cal
ARE ACTIVATED SEISMICALLY, HOWEVER NGMC EXPECT TSUNAMAGENIC ACTIVITY SHORTLY.
Item
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Official 
Decision m de  o send updated NA Strong and Unusual Current with updated map and PTWC wave arrival 
times for NZ
30/07/2025 1341
MAR Watch Leader
Decision
Item
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the 
Dec ion Made to run a group manager/control er/REMA meeting at 1415. 
30/07/2025 1341
National Control er
Decision
Item
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TSUNAMI MESSAGE NUMBER 4
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
 
 * MAGNITUDE     8.7
 * ORIGIN TIME   2325 UTC JUL 29 2025
 * COORDINATES   52.2 NORTH 160.0 EAST
under the Official Information Act 1982
under  * DEPTH         74 KM / 46 MILES
 * LOCATION      OFF THE EAST COAST OF KAMCHATKA RUSSIA
30/07/2025 1351
PTWC
PTWC TSUNAMI THREAT MESSAGE
Item
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NATIONAL ADVISORY Message No: 5: TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS 
AND UNPREDICTABLE SURGES AT THE SHORE Issued 13:58 30 July 2025
30/07/2025 1358
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
30/07/2025 1400
PTWC
Update
UPDATED Wave Arrival Times 
Item
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Released 

Cal  with NGMC: No new info at this stage. There is unlikely to be any changes until after the TEP meet at 
1500hrs. Next comms once TEP have convened
1982
30/07/2025 1404
NGMC
Phone Cal
Item
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30/07/2025 1405
MAR On-Cal  Chat
Update
NA #5 Showing on website. 
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TSUNAMI MESSAGE NUMBER 5
Act 
THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
  * MAGNITUDE      8.7
  * ORIGIN TIME    2325 UTC JUL 29 2025
  * COORDINATES    52.2 NORTH  160.0 EAST
  * DEPTH          74 KM / 46 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
30/07/2025 1512
PTWC
PTWC TSUNAMI THREAT MESSAGE
Item
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MAR have touched base with Maritime NZ RCC. They have adv sed that they are happy with the information 
Information 
they are receiving from us. The RCC are using NEMA Safety advice for al  warnings covering NZ coastlines 
and PTWC for the wider NAVAREA XIV. I have let them kn w to contact us should they need anything or 
information clarified
30/07/2025 1530
MAR On-Cal  Chat
Update
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EAT Message Key Messages from TEP at 3pm meeting
• Same threat asse sment as  efore, there is still some uncertainty around Chathams.
Official 
• Tsunami has been confirmed on multiple international DARTs and coastal tide gauges.
• First tsunami arr vals expected to be around midnight, and the tsunami is expected to arrive over many 
hours and  ontinue overnight and into tomorrow.
the 
• Fir t waves are unlikely to be the largest. Past tsunami observations have shown that significant waves 
could arrive considerably later than the first arrival.
• CDEMs should be aware of their “hotspots” and advise accordingly
Next TEP meeting if 17:00
30/07/2025 1545
NGMC
EAT
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under the Official Information Act 1982
under Cal from NGMC. There is an upgrade in magnitude to M8.8. Same threat assessment of Beach and Marine 
to al  coastal areas. First tsunami arrivals are expected around midnight and will continue through the 
night into tomorrow morning. Past tsunami observations have shown that significant waves could arrive 
considerably later than the first arrival. CDEM groups have been advised to be aware of their "hotspots" for 
places most likely or commonly received coastal inundation. Next Comms once TEP has convened
30/07/2025 1554
NGMC
Phone Cal
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Released 

Decision made to send up National Advisory Strong and Unusual with updated
1982
magnitude M8.8.NGMC have advised that the map is same map used as the previous National Advisory 
and the wave times are still the same as previosuly provided by the PTWC. The map will attached to the 
warning, social media will be updated to reflect the updated magnitude and a bespoke EMA is also being 
30/07/2025 1555
MAR Watch Leader
Decision
sent to coastal New Zealand areas and this is being prepared now.
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Act 
National Advisory Message: #6 TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS AND 
UNPREDICTABLE SURGES AT THE SHORE issued at 1611 30th July
30/07/2025 1611
Whispir
National Advisory
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Emergency Mobile Alert sent:"TSUNAMI ADVISORY: Strong and unusual currents and unpredict ble surges 
at the shore are expected fol owing a magnitude 8.8 earthquake near Kamchatka, Russia.  Strong cu ents 
and surges can injure and drown people. There is a danger to swimmers, surfers, people  ishing, and 
anyone in or near the water close to the shore.   People on boats, live-aboards and at ma inas s ould leave 
their boats/vessels and move onto shore. Do not return to boats unless instructed by officia s.  IF YOU ARE 
ONSHORE, YOU DO NOT NEED TO EVACUATE. But STAY AWAY FROM THE WAT R, incl ding beaches, 
shore areas, harbours, marinas, rivers and estuaries. DO NOT GO SIGHTSEEING   T is advisory is for al  
coastal areas of the North Island, Great Barrier Island, the South Island  S ewart  sland and the Chatham 
Islands.   For more information go to www.civildefence.govt.nz  Issued by the National Emergency 
30/07/2025 1615
MAR Centre
EMA
Management Agency at 4:12pm 30/07/2025."
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TSUNAMI MESSAGE NUMBER 6THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.
Information 
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
  * MAGNITUDE      8 7 Official 
  * ORIGIN TIME    2325 UTC JUL 29 2025
  * COORDINATES    52.2 NORTH  160.0 EAST
    DEPTH          74 KM / 46 MILES
the 
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
30/07/2025 1640
PTWC
PTWC TSUNAMI THREAT M SSAGE
Item
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30/07/2025 1710
National Control er
Decision
Decsision made to hold Control ers' Cal  at 2000hrs
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
under the Official Information Act 1982
under 
Released 

EAT # 5 Key Messages from TEP at 1700 meeting
1982
• Same threat assessment as before, there is still some uncertainty around Chathams.
• Tsunami has been confirmed on multiple international DARTs and coastal tide gauges.
Act 
• First tsunami arrivals expected to be around midnight, and the tsunami is expected to arrive over many 
hours and continue overnight and into tomorrow.
• First waves are unlikely to be the largest. Past tsunami observations have shown that significant waves 
could arrive considerably later than the first arrival.
• CDEMs should be aware of their “hotspots” and advise accordingly
.Next TEP meeting if 1900
SDO wil  ring fol ow up on this EAT.  
30/07/2025 1738
NGMC
EAT
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Information 
Cal  from NGMC: There have been no updates or changes to the previous information. They have advised 
that current modelling is showing a Beach and Ma i e thr at to Scott Base in Antarctica with the same 
levels as NZ with a +7hr first wave arrival t me from NZ  first wave arrival. Next update after TEP meets at 
1900hrs.
30/07/2025 1747
NGMC
Phone Cal
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
TSUNAMI MESSAGE NUMBER 7 HE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.
PRELIMINARY EARTHQUAKE PARAMETERS
Official 
--------------- ---- -----------
the 
  * MAGNITUDE      8.8
  * ORIGIN TIME    2325 UTC JUL 29 2025
  * COORDINATES    52.2 NORTH  160.0 EAST
  * DEPTH          74 KM / 46 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
under the Official Information Act 1982
under 
30/07/2025 1826
PTWC
PTWC TSUNAMI THREAT MESSAGE
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Released 

TSUNAMI MESSAGE NUMBER 8
1982
THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.
Act 
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
  * MAGNITUDE      8.8
  * ORIGIN TIME    2325 UTC JUL 29 2025
  * COORDINATES    52.2 NORTH  160.0 EAST
  * DEPTH          74 KM / 46 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
30/07/2025 1927
PTWC
PTWC TSUNAMI THREAT MESSAGE
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Information 
EAT MESSAGE 6Key Message from TEP at 1900 meeting:
• Beach and Marine threat for al  of NZ, including th  Chathams.
• Beach and Marine threat likely to exte d into tomorrow.
• East Coast likely to experi nce  arger reflections. West Coast may experience smal er reflections.
• CDEMs should be  ware o  thei  “hotspots” and advise accordingly.
• First tsunami arriva  expec ed to be around midnight, and the tsunami is expected to arrive over many 
Official 
hours and continue overnight and into tomorrow.
• First wave  are unlikely to be the largest. Past tsunami observations have shown that significant waves 
could arriv  considerably later than the first arrival.
the 
• Manual DART trigger at 9pm NZT
• Next TEP at 10pm NZT
30/07/2025 1948
NGMC
EAT
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
under the Official Information Act 1982
under National Advisory Message No: 7 TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS AND 
UNPREDICTABLE SURGES AT THE SHORE Issued 08:30pm 30 July 2025
30/07/2025 2030
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Released 

TSUNAMI MESSAGE NUMBER 9
1982
THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.
Act 
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
  * MAGNITUDE      8.8
  * ORIGIN TIME    2325 UTC JUL 29 2025
  * COORDINATES    52.2 NORTH  160.0 EAST
  * DEPTH          74 KM / 46 MILES
  * LOCATION       OFF THE EAST COAST OF KAMCHATKA  RUSSIA
30/07/2025 2039
PTWC
PTWC TSUNAMI THREAT MESSAGE
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Information 
Decsision made to hold Tsunami Event Discussion #3 @ 0830 31st July
30/07/2025 2332
National Control er
Decision
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
31/07/2025 0001
MAR Watch Leader
Event Update
TEP Update sent to CDEM Groups. 
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
National Advisory Message No 8 Issued  t 5:32am
31/07/2025 0532
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Event Update #1 - M8.8 Rus ia Ea thquake 31/07/25 0610hrs
31/07/2025 0608
MAR Watch Leader
Event Update
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Official 
the 
under the Official Information Act 1982
under 
Released 

EMA Sent:
Description: "TSUNAMI - National Advisory BEACH AND MARINE"
Start time: Thu Jul 31 06:30:04 NZST 2025.
1982
End time: Thu Jul 31 18:30:04 NZST 2025.
From: NEMA
Content:
Act 
"TSUNAMI ADVISORY: Strong currents and surges are occurring after the M8.8 earthquake near Russia. 
These currents and surges can injure or drown people. Stay away from beaches, shorelines, harbours, 
rivers, and estuaries.DO NOT GO SIGHTSEEING.
People with boats and live-aboards should remain onshore unless directed otherwise. IF YOU ARE 
ONSHORE, EVACUATION IS NOT REQUIRED, but STAY AWAY FROM WATER.
This advisory applies to al  coastal areas of NZ.  The threat is likely to  emain in f rce until at least midday 
today.
Information 
31/07/2025 0630
EMA
Tsunami activity has already reached parts of NZ. Initial surges may not be the largest, and activity could 
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
EAT #8 Next official TEP meeting at 11am 31/7
Key messages
• We are seeing observations c nsis ent with B&M threat in NZ, with several observations above Beach & 
Marine threshold but below  and threat  No observations consistent with Land threat. No escalation at the 
moment.  
• Current map will continue c astal observations have likely not reached peak in many parts of New 
Official 
Zealand and are increa ing in a few locations.
• This information will be reviewed on an ongoing basis based on arrivals at NZ DART and tsunami gauges – 
next TEP mee ing 11am unless something unexpected develops
31/07/2025 0903
NGMC
EAT
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
the 
31/07/2025 1000
MAR Centre
Event Update
Email sent to groups advising Nationwide EMA to STOP at 1015hrs
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
31/07/2025 1017
MAR Centre
EMA
National EMA Stopped
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
31/07/2025 1149
MAR On-Cal  Chat
Social Media Update
Social Media updated with Large Pacific EQ holding message. 
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Decsion Made:MAR to issue a National Advisory with this information
 
under the Official Information Act 1982
under 
31/07/2025 1200
National Control er;#MAR Watch Leader
Decision
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
NATIONAL ADVISORY Message No: 9: TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS 
AND UNPREDICTABLE SURGES AT THE SHORE Issued 12:21 31 July 2025
31/07/2025 1221
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Event Update #2 - M8.8 Russia Earthquake 31/07/25 1230hrs
31/07/2025 1230
MAR Watch Leader
Event Update
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
31/07/2025 1506
National Control er
Decision
Decsision Made to Issue Updated NA
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Released 

NATIONAL ADVISORY Message No: 10: TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS 
AND UNPREDICTABLE SURGES AT THE SHORE Issued 15:27 31 July 2025
1982
31/07/2025 1527
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
NATIONAL ADVISORuMessage No: 11:  TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS 
AND UNPREDICTABLE SURGES AT THE SHORE Issued 1945 NZST 31 July 2025
31/07/2025 1949
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Act 
NATIONAL ADVISORY Message No: 12: TSUNAMI ACTIVITY – EXPECT STRONG AND UNUSUAL CURRENTS 
AND UNPREDICTABLE SURGES AT THE SHORE Issued at 8:10 AM NZST 01 August 2025
1/08/2025 0810
Whispir
National Advisory
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
1/08/2025 1358
Whispir
National Advisory
NATIONAL ADVISORY Message No:13 : TSUNAMI ACTIVITY – CANCELLED - Issued 13:58 01 Augu t 2025
Item
sites/NEMAMAR/Lists/2025_July_M87_Kamchatka_Russia
Information 
Official 
the 
under the Official Information Act 1982
under 
Released 

31/07/2025 5:24 AM s9(2)(g)(ii)
s9(2)(g)(ii) [NEMA]
By the way - between midnight
and now I got 40 email
1982
notifications from whispir - I didn’t
silence my phone (bc duty) and it
was a lot. I understand this is a
Act 
glitch with PTWC advisory but can
we note this too? Thanks
31/07/2025 5:26 AM s9(2)(g)(ii)  [NEMA]
Yes so did we and s9(2)(g)(ii) NE We ha
 
ve emailed Ops Systems to report this and the
EMA issue mentioned by s9(2)(g)(ii) 
 (abo
NEMA Sta
ve)
2x 👍 : s9(2)(g)(ii)  [NEMA], s9(2)(g)(ii)
 [NEMA]
Information 
31/07/2025 5:28 AM s9(2)(g)(ii)
 [NEMA]
Just preparing the next NA now. Looking to send it at 5.30am
2x 👍 : s9(2)(g)(ii)  [NEMA], s9(2)(g)(ii)
 [NEMA]
Official 
31/07/2025 5:32 AM s9(2)(g)(ii)  [NEMA]
New National Advisory Tsunami Activity sent
the 
31/07/2025 5:33 AM s9(2)(g)(ii)
 [NEMA]
EMA Message for approval
under 
 
TSUNAMI ADVISORY: Strong and unusual currents and unpredictable surges at
the shore are expected following a magnitude 8.8 earthquake near Kamchatka,
Russia.
Strong currents and surges can inju
re and drown people. There is a danger to
swimmers, surfers, people fishing, and anyone in or near the water close to the
shore.
Released 

People on boats, live-aboards and at marinas should leave their boats/vessels
and move onto shore. Do not return to boats unless instructed by officials.
IF YOU ARE ONSHORE, YOU DO NOT NEED TO EVACUATE. But STAY AWAY
FROM THE WATER, including beaches, shore areas, harbours, marinas, rivers
and estuaries. DO NOT GO SIGHTSEEING.
1982
This advisory is for all coastal areas of the North Island, Great Barrier Island, the
South Island, Stewart Island and the Chatham Islands.
Act 
The threat is likely to remain in force until at least midday today.
Tsunami activity has already reached parts of New Zealand. The first currents
and surges are unlikely to be the largest and are expected to continue over
many hours. The threat must be regarded as real until this Advisory is
cancelled.
For more information go to www.civildefence.govt.nz
 
Information 
31/07/2025 5:34 AM s9(2)(g)(ii)  [NEMA]
New National Advisory now on website with updated map (Once again - No
change to map apart from time last updated) 
Official 
31/07/2025 5:35 AM s9(2)(g)(ii)
 [NEMA]
Looks fine to me - what time were you thinking of sending? the 
31/07/2025 5:35 AM s9(2)(g)(ii)
 [NEMA]
0600hrs
under 
31/07/2025 5:38 AM s9(2)(g)(ii)
 [NEMA]
Looks good to me too. Approved
2x 👍 : Unknown, Unknown
31/07/2025 5:39 AM s9(2)(g)(ii)
 [NEMA]
Released 

That will be really early for a lot of people - sorry to question you but I think
we’ll get a lot of public pushback
31/07/2025 5:39 AM s9(2)(g)(ii)
 [NEMA]
I think we will too s9(2)(g)(ii) 
, but I'm also conscious 
NEMA Sta
we need to advise people of
1982
information relevant to their day and their morning commute.
Act 
31/07/2025 5:40 AM s9(2)(g)(ii)
 [NEMA]
That’s fair - I get that
31/07/2025 5:40 AM s9(2)(g)(ii)
 [NEMA]
It's not a decision I have taken lightly
31/07/2025 5:40 AM s9(2)(g)(ii)
 [NEMA]
Information 
No of course not - that’s all good 
31/07/2025 5:42 AM s9(2)(g)(ii)
 [NEMA]
Looks fine to me too.
 will need a line or t
s9(2)(g)(ii) 
 
wo defending the early morning
Official 
wake up call.
1x 👍 :s9(2)(g)(ii)
 [NEMA]
the 
31/07/2025 5:43 AM s9(2)(g)(ii)
 [NEMA]
Social media updated for new National Advisory.
 
under 
31/07/2025 5:43 AM s9(2)(g)(ii)
 [NEMA]
I've advised him it's happening and he will be provided with lines to defend it.
31/07/2025 5:43 AM s9(2)(g)(ii)
 [NEMA]
The wording on the EMA is too long for the system. Approx 300 characters over
Released 

31/07/2025 5:44 AM s9(2)(g)(ii)
 [NEMA]
If we cut the new info we've added we have 3 characters to spare
31/07/2025 5:44 AM s9(2)(g)(ii)
 [NEMA]
1982
Is the EMA clear enough that it is a second one and the test continues? Some
language is in the wrong tense. Ie strong and unusual currents are expected 
Act 
Think this would be more effective as strong and unusual currents have
occurred in New Zealand and are expected to continue until at leadt midday
Think if sending it again which we need to do it really needs to be clear it is not
a glitch or a repeat
31/07/2025 5:45 AM s9(2)(g)(ii)
 [NEMA]
Information 
I agree. We have to be clear that it's because the situation is updated
31/07/2025 5:46 AM s9(2)(g)(ii)
 [NEMA]
The strong and unusual currents are ongoing. Will re word a bit. Are there any
Official 
sections you think we can cut out to make the word count?
31/07/2025 5:46 AM s9(2)(g)(ii)
 [NEMA]
the 
Language for people on boats etc should change from should leave to should
remain onshore etc. Reframe to reinforce the behaviour they should have done.
31/07/2025 5:47 AM s9(2)(g)(ii)
 [NEMA] under 
Have a look in the templates. Wellington definitely has a template for
continued wave arrival. Not sure if others do
31/07/2025 5:47 AM s9(2)(g)(ii)
 [NEMA]
Good point s9(2)(g)(ii) 
  
NEMA Staff
Standing by to see the reworded one
Released 

31/07/2025 5:47 AM s9(2)(g)(ii)
 [NEMA]
This advisory is for all coastal areas of NZ.
1x 👍 : s9(2)(g)(ii)
 [NEMA]
1982
31/07/2025 5:48 AM s9(2)(g)(ii)
 [NEMA]
The threat is likely to remain until midday today.
Act 
31/07/2025 5:48 AM s9(2)(g)(ii)
 [NEMA]
I'm cutting small words, but see what the templates have
31/07/2025 5:42 AM s9(2)(g)(ii)
s9(2)(g)
NEMA]
(ii) Looks fine to me too.s9(2)(g)(i will need
 
 
a line or two defending the early
Information 
morning wake up call.
31/07/2025 5:50 AM s9(2)(g)(ii)
 [NEMA]
You’ve picked up that some people’s phones, including mine, re alerted at
about 3:30. I’m not happy about it so not sure about anyone’s inter general
Official 
public.
31/07/2025 5:51 AM s9(2)(g)(ii)
 [NEMA]
the 
I wasn’t aware of that - what caused it?
31/07/2025 5:52 AM s9(2)(g)(ii)
 [NEMA] under 
I've just spoken to  - 
s9(2)(g)(  
we will push the EMA out 
 
to 0630
1x 👍 : s9(2)(g)(ii)
 [NEMA]
31/07/2025 5:52 AM s9(2)(g)(ii)
 [NEMA]
Do we know the status of the morning commuter ferries?
Released 

31/07/2025 5:51 AM s9(2)(g)(ii)
s9(2)(g) [NEMA]
(ii) I wasn’t aware of that - what
caused it?
31/07/2025 5:52 AM s9(2)(g)(ii)
 [NEMA]
1982
No idea. But some of the Mar phones went off as well. s9(2)(g)(ii) NEMA Staff will follow up
today but I suspect it happened outside NEMA as well.
Act 
31/07/2025 5:53 AM s9(2)(g)(ii)
 [NEMA]
Will prepare a line for s9(2)(g    
31/07/2025 5:53 AM s9(2)(g)(ii)
 [NEMA]
No, but AEM rang me last night asking for info as early as possible to help that
decision, and we gave it about 11.30pm
Information 
31/07/2025 5:54 AM s9(2)(g)(ii)
 [NEMA]
I’ll ask their PIM but will wait until after 6am
1x 👍 : s9(2)(g)(ii)
 [NEMA]
Official 
31/07/2025 5:59 AM s9(2)(g)(ii)
 [NEMA]
the 
New EMA wording
 
TSUNAMI ADVISORY: Strong and unusual currents and unpredictable surges at
the shore are occurring following a M8.8 earthquake near Russia.
Strong currents and surges can injure and drown people. There is a danger for
under 
anyone in or near the water close to the shore.
People with boats or live-aboards should remain onshore. Do not return to
boats unless instructed by officials.
IF YOU ARE ONSHORE, YOU DO NOT NEED TO EVACUATE. But STAY AWAY
FROM THE WATER, including beaches, shore areas, harbours, marinas, rivers
and estuaries. DO NOT GO SIGHTSEEING.
This advisory is for all coastal areas of NZ.
Released 
The threat is likely to remain in force until midday today.

Tsunami activity has already reached parts of NZ. The first currents and
surges are unlikely to be the largest and are expected to continue over many
hours. The threat must be regarded as real until this Advisory is cancelled.
For more info go to www.civildefence.govt.nz
1982
31/07/2025 6:00 AM s9(2)(g)(ii)
 [NEMA]
Looks good to me. Thank you
Act 
1x 👍 : Unknown
31/07/2025 6:00 AM s9(2)(g)(ii)
 [NEMA]
Looks good to me with those changes
1x 👍 : Unknown
31/07/2025 6:00 AM s9(2)(g)(ii)
 [NEMA]
Information 
Cool. Will tee that up for 6.30
31/07/2025 6:01 AM s9(2)(g)(ii)
 [NEMA]
I'll look to send the event update now
Official 
1x 👍 : s9(2)(g)(ii)
 [NEMA]
the 
31/07/2025 6:07 AM s9(2)(g)(ii)
 [NEMA]
 needs the e
s9(2)(g
 
 
vent update ASAP as he has to get it to the Minister in time for
him to prepare for his media
under 
31/07/2025 6:08 AM s9(2)(g)(ii)
 [NEMA]
Have just sent it
31/07/2025 6:09 AM s9(2)(g)(ii)
 [NEMA]
Thank you
Released 
1x 👍 : Unknown

31/07/2025 6:11 AM s9(2)(g)(ii)
 [NEMA]
Can we please have a couple of lines defending the re-issue of the EMA this
morning.   is 
s9(2)(g
 
well ac
 
ross it, but we need to provide something for the Minister.
If the PIM could drop them in here, I will send them through.
1982
31/07/2025 6:12 AM s9(2)(g)(ii)
 [NEMA]
Act 
s9(2)(g)(ii) NEMA St is all over it - we are sending over an updated key messages email
shortly
31/07/2025 6:12 AM s9(2)(g)(ii)
 [NEMA]
AMAZING - thank you 
31/07/2025 6:14 AM s9(2)(g)(ii)
 [NEMA]
Information 
Are Groups aware of the EMA?
31/07/2025 6:14 AM s9(2)(g)(ii)
 [NEMA]
Yes
Official 
1x 👍 : s9(2)(g)(ii)
 [NEMA]
the 
31/07/2025 6:20 AM s9(2)(g)(ii)
 [NEMA]
Sorry about this, but EMA characters were an issue with the second attempt at
the EMA
 
Here is the third attempt
under 
 
 
 
TSUNAMI ADVISORY: Strong currents and surges are occurring after the M8.8
earthquake near Russia. These currents and surges can injure or drown people.
Stay away from beaches, shorelines, harbours, rivers, and estuaries.DO NOT GO
SIGHTSEEING.
Released 

People with boats and live-aboards should remain onshore unless directed
otherwise. IF YOU ARE ONSHORE, EVACUATION IS NOT REQUIRED, but STAY
AWAY FROM WATER.
This advisory applies to all coastal areas of NZ.  The threat is likely to remain in
force until at Least midday today.
Tsunami activity has already reached parts of NZ. Initial surges may not be the
largest, and activity could continue for hours. Treat the threat as real until the
advisory is cancelled.
For updates, visit www.civildefence.govt.nz.
31/07/2025 6:26 AM s9(2)(g)(ii)
 [NEMA]
additional back pockets as requested:
31/07/2025 6:26 AM s9(2)(g)(ii)
 [NEMA]
s9(2)(g)(i)
under the Official Information Act 1982
Released 

s9(2)(g)(i)
1982
Act 
Information 
Official 
 
2x 👍 : Unknown, s9(2)(g)(ii)
 [NEMA]
the 
31/07/2025 6:27 AM s9(2)(g)(ii)
 [NEMA]
Will send out the EMA as it is above at 0630hrs
1x 👍 : s9(2)(g)(ii)
 [NEMA]
under 
31/07/2025 6:30 AM s9(2)(g)(ii)
 [NEMA]
EMA Sent 
31/07/2025 6:31 AM s9(2)(g)(ii)
 [NEMA]
Released 
Received 😆