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Seismic activity in the last 7 days for the upper North Island

Here is a weekly summary for seismic activity under the upper North Island as detected by GeoNet. There have been 20 small earthquakes in the last 7 days in the region up to Saturday 7am 14th January.


- 16 are related to the aftershock sequence of the 4th January M5.1 at Te Aroha on the Kerepehi fault.


- One M2.2 is relating to the ongoing earthquake swarm 25km to 30km east of Whitianga, bringing the swarm sequence total to 23 quakes since mid-August.

- One M1.5 was on the extension of the Mangatangi fault on the eastern side of the Hunua ranges.


- One M2.1 was on an unknown fault 17km NE of Thames near the Moss Creek track.


- One M2.4 was within the extinct Mercury Volcanic field next to Red Mercury Island.


Image: GNZ earthquake location on google earth with descriptions


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