Earthquake swarm in Okataina Volcanic Centre

Published: Mon Jan 25 2021 10:30 AM
Updated: Mon Jan 25 2021 11:15 AM

A swarm of shallow earthquakes has occurred in the Okataina Volcanic Centre, Bay of Plenty, this morning – the two largest were a M4.5 and a M4.9. The larger event was widely felt across the upper North Island with more than 5200 felt reports.

See more details here.

We’ve recorded over 68 events since 7.47 am this morning ranging in size from <M2 to M4.9. Okataina Volcanic Centre lies east of Rotorua and is one of two active caldera volcanoes in the Taupo Volcanic Zone.

Earthquake swarms are common in the Taupo Volcanic Zone, especially in the area between Rotorua and Taupo which is tectonically active. The last swarm with quakes of this size within the caldera was in July 2004 located just north near Lake Rotoehu and before that in 1998 just to the south of today’s sequence.

Map showing the felt reports for the largest event this morning

Map showing the felt reports for the largest event this morning

Maps showing shallow earthquake activity in the Taupo Volcanic Zone, since 1990 (left) and the last 24hrs (right)

Maps showing shallow earthquake activity in the Taupo Volcanic Zone, since 1990 (left) and the last 24hrs (right)

Remember in an earthquake to Drop, Cover and Hold

Drop, cover and hold

And if you feel a Long or Strong earthquake, or receive an emergency mobile alert for a tsunami, Get Gone to higher ground immediately, or as far inland as possible.


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