Felt earthquake reports are quantified using the New Zealand Modified Mercalli (MM) intensity scale. The MM scale grades the impact of an earthquake on people living on the earth's surface, and so can ...

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 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 ...

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 ...

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 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 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 ...

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 ...

We get asked two questions a lot: what is an earthquake forecast and why do I need to know about them? GNS Science has been producing earthquake forecasts since the late 1990s, but it wasn’t until the ...

Waveform data from GeoNet's seismic, acoustic and tidal gauge instruments can be requested through the following service: ...