The earthquake that struck Cook Strait in the early evening of 23 April 1966, was felt over much of New Zealand. Although its magnitude was not exceptionally large, this earthquake had a large impact ...

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 ...

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 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 ...

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 Aviation Colour Code system is based on four colours and is only intended for use by the civil aviation community. The system is defined by the International Civil Aviation Organization(ICAO), and ...

One hazard we don’t often get an opportunity to talk about at GeoNet is landslides. That’s a good thing, we aren’t complaining. But with the M7.8 Kaikōura Earthquake, landslides and land deformation ...

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 ...

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 ...

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 ...

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, ...