Earthquakes in Wellington
Wellington, New Zealand's capital of 430,000 people, is often cited as one of the world's most earthquake-prone capital cities. The Wellington Fault runs directly through the city, and the Hikurangi Subduction Zone offshore is capable of generating a M8.5+ megathrust earthquake threatening Wellington and much of the North Island.
Why Does Wellington Face Earthquake Risk?
The Wellington Fault passes through the city and has not ruptured in approximately 350-400 years. The fault is capable of a M7.5 earthquake directly beneath Wellington. Additionally, the Hikurangi Subduction Zone and other regional faults provide additional seismic risk. Wellington experiences more felt earthquakes per year than almost any other capital city in the world.
Active Fault Systems
- Wellington Fault
- Wairarapa Fault
- Hikurangi Subduction Zone
Safety Advice
GNS Science and Wellington City Council maintain detailed earthquake hazard maps. Wellington's CBD contains numerous unreinforced masonry (URM) buildings identified as earthquake-prone. The Wellington City Council is gradually requiring owners to strengthen or demolish these buildings.
Historical Earthquake Context
Wellington was damaged by major earthquakes in 1848 (M7.1) and 1855 (M8.1, Wairarapa Fault). The 1855 earthquake is the largest historically documented earthquake in New Zealand and raised Wellington's harbor floor by 1-2 meters. The 2016 Kaikōura earthquake (M7.8) severely damaged Wellington 150 km away.
Significant Earthquakes Near Wellington
| Year | Magnitude | Event | Deaths |
|---|---|---|---|
| 2016 | M7.8 | New Zealand | 2 |
Fault Maps & Tectonic Setting
Tectonic and seismic hazard maps from Wikimedia Commons, USGS, and NASA — open licenses (CC / Public Domain)
Maps sourced from Wikimedia Commons, USGS, and NASA under open licenses. Attribution required where specified. Click any map to enlarge.
FAQ
Frequently Asked Questions
How often does Wellington have earthquakes?
Wellington residents experience multiple felt earthquakes per month on average. The city has about 150+ felt earthquakes per year, making it one of the most earthquake-prone capital cities in the world. Most are minor, but larger events occur regularly.
How seismically active is Wellington?
Wellington is New Zealand's most seismically active major city, experiencing multiple felt earthquakes per year. The Wellington Fault passes directly beneath the central business district, and the city sits near the Hikurangi Subduction Zone. GeoNet records dozens of M3+ earthquakes per year within 50 km of Wellington.
What are the major earthquake risks in Wellington?
Wellington faces two distinct threats: a M7.5+ rupture of the nearby Wellington Fault, which last ruptured approximately 300-400 years ago, and a major Hikurangi megathrust event (potentially M8.5+) from the subduction zone offshore the North Island. Both sources could cause severe shaking and, in the case of the subduction event, a significant tsunami.
Is Wellington prepared for a major earthquake?
Wellington has invested heavily in earthquake engineering — many buildings use base isolation systems. However, GNS Science estimates a major Wellington earthquake could cause up to NZ$10 billion in damage and displace over 40,000 people. Some older unreinforced masonry buildings in the CBD still await retrofitting or demolition.
What should I do during an earthquake in Wellington?
Drop, Cover, and Hold On. After shaking, if you are in a low-lying coastal area and shaking was prolonged or very strong, move immediately to higher ground without waiting for a siren — a Hikurangi tsunamis could arrive within minutes. Follow GeoNet (geonet.org.nz) and NZ Civil Defence (civildefence.govt.nz) for updates.
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