Magnitude 2.2, Sat Sep 18 2021 11:06 AM


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


0.01.02.03.0Magnitude01Time since earthquake (minutes)Magnitude Historyp

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


0100Depth (km)01Time since earthquake (minutes)Depth Historyp

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
2021-09-17T23:08:20Z preliminary 2.2 145.4 -37.62 176.58
2021-09-17T23:08:11Z preliminary 2.1 145.4 -37.62 176.58
2021-09-17T23:08:09Z preliminary 2.0 145.4 -37.62 176.58
2021-09-17T23:08:04Z preliminary 1.9 145.4 -37.62 176.58
2021-09-17T23:08:04Z automatic 1.6 101.6 -37.86 176.54
2021-09-17T23:07:59Z automatic 1.6 101.6 -37.86 176.54
2021-09-17T23:07:58Z automatic 1.6 101.6 -37.86 176.54
2021-09-17T23:07:58Z automatic 1.7 101.6 -37.86 176.54
2021-09-17T23:07:58Z automatic 1.7 101.6 -37.86 176.54
2021-09-17T23:07:49Z automatic 1.6 101.6 -37.86 176.54