The Earth's entire outer surface is like a hard shell, which is broken into smaller pieces called 'tectonic plates'. New Zealand is on the boundary between two of these plates, called the Australian ...

The tsunami that was caused by a M 9 earthquake in Chile hit the shores of New Zealand in the early hours of 15 August, taking 15 hours to arrive here. The tsunami and earthquake killed thousands of ...

Map and search of GeoNet sensor networks that deliver high-rate-data. Use the date search filter to see sensors that were operating in the past. More detailed station/sensor information can be ...

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) ...

The NZ Volcanic Alert Level system is based on 6 levels and is intended to describe the current status of each active volcano. People who need volcano related information ranges from local residents, ...

An interactive, multi-layered map displaying the peak strong motion data that GeoNet collected during the last hour. Select a site to view the PGA (g), PGV (cm/s) and MMI values. Sites are coloured to ...

The timestamp shown at the top right of the images is the time when the images were last refreshed. The previous 36 hours of sea level variations from all operational sites are displayed, oldest to ...

GeoNet collects information about the intensity of shaking that people experienced during an earthquake. There have been a few different varieties of reports in the history of collecting this data.

Structural arrays consist of multiple sensors within a building or structure. They provide data to help engineers understand how the structure responds to shaking or vibration. The GeoNet building ...

New Zealanders live on the edge. Depending on their location, it might be the edge of the Australian Plate or it might be the edge of the Pacific Plate. The active Pacific-Australian Plate boundary ...

Volcano Activity Bulletins (VABs) are New Zealand's official source of volcano status information including the current Volcanic Alert Level (VAL). They are issued on an as needed basis summarising ...

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 ...