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Wildfire Statistics (Large Fires)

Alan Thompson made this Official Information request to Fire and Emergency New Zealand

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From: Alan Thompson

Dear Fire and Emergency New Zealand,

After querying the accuracy of the data I have now been advised that the information you provided to my previous OIA Request (your Ref 18821) was incorrect. Your letter dated 29 October 2025 refers. I seek then the correct information as follows:

1. Please confirm that you classify a "Large Wildfire" as one exceeding 1000 hectares and not 10 hectares as previously advised.

2. For the period 2009/10 through 2024/25 (15 fire seasons) please provide the name, date and area burnt for each fire that you classify as a "Large Wildfire".

3. For the previous 61 years, please provide the name, date and area burnt for each fire you classify as a "Large Fire". In the event that any of this information is not available, please provide what data you do have that enables the comparison between the occurrence of "Large Wildfire" since 2010 and the previous 61 years.

Yours sincerely,

Alan Thompson

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From: Official Information Requests
Fire and Emergency New Zealand

Tēnā koe Alan Thompson  
 
We write to acknowledge receipt of your information request dated 29
October 2025. Our commitment is to provide a response to your request as
soon as possible, and no later than 20 working days after the day it was
received. If we are unable to meet this timeframe, we will inform you
promptly and provide details regarding any extension required. Should
clarification be necessary for your request, we may reach out to you for
additional information.
             
The information you have requested may contain the names and contact
details of our staff or volunteers. Please let us know whether you require
these names and contact details. We may need to consult our people before
deciding whether we can release this information, and this may take a bit
more time. If we do not hear from you, we will assume that you do not
require their names and contact details.

Nāku noa, nā
Information Request Team

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From: Official Information Requests
Fire and Emergency New Zealand


Attachment image001.png
17K Download

Attachment NZ fires over 1000 ha.xlsx
20K Download View as HTML

Attachment OIA2025 00019637 Vegetation fires and area burnt 1000 ha by land use categories v2.pdf
126K Download View as HTML


Tēnā koe Alan

We write regarding your email of 29 October 2025 to Fire and Emergency New
Zealand, requesting the following information under the Official
Information Act 1982:

 

1. Please confirm that you classify a "Large Wildfire" as one exceeding
1000 hectares and not 10 hectares as previously advised.

 

2. For the period 2009/10 through 2024/25 (15 fire seasons) please provide
the name, date and area burnt for each fire that you classify as a "Large
Wildfire".

 

3. For the previous 61 years, please provide the name, date and area burnt
for each fire you classify as a "Large Fire".  In the event that any of
this information is not available, please provide what data you do have
that enables the comparison between the occurrence of "Large Wildfire"
since 2010 and the previous 61 years.

 

We understand you have received an email from the Deputy Chief Executive
Prevention on 25 November 2025. The email reply included confirmation we
classify a large fire as any over 1000 hectares. The reply also included
two spreadsheets of data which we reattach for visibility. The attached
spreadsheets include a list of large vegetation fires and the area burnt
from 2010 onwards, broken down by land use categories. They also include a
spreadsheet showing a comparison of frequency of large wildfires back to
1946. We consider that this data resolves your request and provides the
information requested in questions two and three above.

We trust that the information being provided is of assistance. If you
require further information, please email
[1][FENZ request email]

 

Ngā mihi,

 

Information Requests Team

 

[2]Description: Cato Server:WORK IN PROGRESS:FENZ:FENZ_Assets:FENZ
Logos:FENZ logos _Supplied to FENZ:FENZ Logos png:FENZ Logo_CMYK.png 

 E: [3][FENZ request email]

 W: [4]www.fireandemergency.nz

A: Fire and Emergency National Headquarters

     Level 7, 42-52 Willis Street, Wellington Central

     PO Box 2133, Wellington 6011

 

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