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Request for observations following the Tongan eruption and tsunami

We are interested in your observations of the sea and coastal areas following the Hunga Tonga-Hunga Ha'apai eruption on 15 January 2022. We would also like to know about "booming" sounds heard around the time of the eruption Saturday evening.

Last week

Hunga Tonga-Hunga Ha’apai volcano – information about the eruption

As of today, information we have access to indicates that the volcano is not currently erupting, and we have not detected further tsunami activity. Volcanologists are still building a picture of what happened during this globally significant eruption.

Last week

Volcanic Alert Bulletin
Whakaari/White Island: Vent temperature and gas output decreases; volcanic unrest continues

Data from an observation flight at Whakaari/White Island last week show a substantial decrease in the active vent temperature and a small decrease in the gas output. The state of moderate to heightened unrest continues. The Volcanic Alert Level remains at Level 2.

Last week

Hunga Tonga-Hunga Ha'apai eruption - information about the tsunami

At 5:20pm on Saturday 15 January, a large, impulsive eruption at Hunga Tonga-Hunga Ha’apai volcano in Tonga occurred causing tsunami activity on coastlines around the Pacific – observed as widely as the west coast of the USA, Peru, Japan and New Zealand.

Last week

Tsunami Activity Following Hunga Tonga - Hunga Ha’apai Volcanic Eruption

NATIONAL ADVISORY: TSUNAMI ACTIVITY – CANCELLED

2 weeks ago

Deep earthquakes under the North Island and their shaking (intensity?)

On 12 January 2022 over 38,800 people reported feeling an earthquake in central New Zealand; many of these reports were far from the quake itself. We explore the science of deeper earthquakes in the North Island, and how we describe shaking intensity.

2 weeks ago

Volcanic Alert Bulletin
Recent earthquakes under the summit of Ruapehu – unrest remains low

A recent cluster of earthquakes has occurred beneath Ruapehu’s summit. All monitoring data at Ruapehu indicates that volcanic unrest remains at minor levels. The Volcanic Alert Level at Mt Ruapehu stays at Level 1.

2 weeks ago

Kids asked and our experts answered.

In October we asked kiwi kids to send in their questions about volcanoes, tsunamis, earthquakes and landslides, and our experts answered. Today we share the videos answering tsunami questions.

4 weeks ago

Happy Holidays from GeoNet

The team at GeoNet would like to wish everyone a happy holiday and to thank you for your support throughout 2021. It’s been another busy year monitoring our geological hazards through the pandemic.

Last month

Do you download GeoNet data from FTP? If yes, then please read on!

This is a friendly reminder that the GeoNet FTP (ftp://ftp.geonet.org.nz) will be fully decommissioned on the 21st of December.

Last month