In 2024 22,904 earthquakes were located around New Zealand and in the Kermadec region, the largest was a M5.9 115 km east of ...

The 1855 earthquake is the most severe earthquake to have occurred in New Zealand since systematic European colonisation began in 1840.

The timestamp shown at the top right of the seismograph drum shown above is the time when this image was last refreshed. The previous four hours (240 minutes) of seismic signals (also known as traces) ...

New Zealand’s tectonic setting in the Pacific puts us at risk from many different tsunami sources, some may be generated and arrive at our nearest coasts in less than an hour. To help our experts, we ...

The Aotearoa New Zealand Tsunami Gauge network, also known as the Coastal Sea Level gauge network, supports detection and analysis of potential tsunami threats arriving at New Zealand's coasts. It is ...

New Zealand’s tectonic setting in the Pacific puts us at risk from many different tsunami sources, some may be generated and arrive at our nearest coasts in less than an hour. To improve tsunami ...

What is an earthquake swarm? Unlike the familiar mainshock-aftershock earthquake sequences, where numerous smaller earthquakes tend to follow a larger earthquake, earthquake swarm sequences do not ...

The NGMC receives live feeds from monitoring equipment located all around Aotearoa New Zealand, provided via the GeoNet system, and data from international stations. Earthquakes are monitored using a ...

The distance inland that a tsunami travels. A sequence of extremely long travelling waves, generated by large disturbances - movements of the sea floor during earthquakes, volcanic eruptions, ...

View our compilation of informative earthquake-related videos. For more videos, visit the GNS YouTube channel.

The 27 August 1883 explosion of Krakatau Volcano in Indonesia is one example of an eruption-caused tsunami. The eruption generated a 30m tsunami in the Sunda Strait which killed about 36,000 people, ...

The size of an earthquake is often described using magnitude, which is the amount of energy released during an earthquake. However, not all of the energy released in an earthquake will necessarily be ...