Update: Earthquake swarm west of Tokaanu (Turangi)

Published: Mon Feb 20 2017 4:00 PM

Earthquake Swarm

A small earthquake swarm started around 6pm (Monday 13 February) about 10 kilometres north west of Tokaanu (Turangi). Since around 7am today (Monday February 20) earthquake activity has restarted. We have been able to locate 52 of the events so far. Their magnitudes ranged from about M 0.8 to M 2.5, while the depths ranged between 1 and 10 kilometres, with most being 5-8 kilometres deep. The largest event to date occurred at 05.16 am on 20 February, being M2.5. There have been two felt reports, reporting weak shaking. Swarms are often characterised by no one main or large event, with many of the events being about the same size. Earthquake swarms are very common in the greater Rotorua-Taupo area, known as the Taupo Volcanic Zone. In 2008 there was a larger swarm in the same area, while in March 2015 there was one about 9 km to the north and another in October 2015 to the south.

Seismogram showing todays earthquakes

Seismogram showing todays earthquakes

Locations of the earthquakes in the last week

Locations of the earthquakes in the last week