Magnitude 3.1, Wed Oct 20 2021 10:26 PM


Location history for this earthquake. The automatic earthquake location system makes many locations for each quake. Not all quakes have a location history.

Magnitude History


0.01.02.03.04.0Magnitude0123Time since earthquake (weeks)Magnitude Historyb

The magnitude history for this event. The most recent value is shown as a larger circle and also labeled: c: caution, g: good b: best (reviewed by a duty person).

Depth History


01020Depth (km)0123Time since earthquake (weeks)Depth Historyb

The depth history for this event. The most recent value is shown as a larger circle and also labeled; c: caution, g: good b: best (reviewed by a duty person).

Origin History Map

Map of New Zealand.

Location History


Modification Time Quality Magnitude Depth Latitude Longitude
2021-11-15T22:15:45Z best 3.1 18.1 -40.47 175.89
2021-10-20T09:30:49Z best 3.1 18.3 -40.47 175.89
2021-10-20T09:28:00Z preliminary 3.1 23.5 -40.46 175.89
2021-10-20T09:27:53Z preliminary 3.1 23.5 -40.46 175.89
2021-10-20T09:27:52Z preliminary 3.1 23.5 -40.46 175.89
2021-10-20T09:27:50Z preliminary 3.1 23.5 -40.46 175.89
2021-10-20T09:27:44Z preliminary 3.0 23.5 -40.46 175.89
2021-10-20T09:27:42Z preliminary 3.1 23.5 -40.46 175.89
2021-10-20T09:27:41Z preliminary 3.1 23.5 -40.46 175.89
2021-10-20T09:27:33Z preliminary 2.9 23.5 -40.46 175.89