Magnitude 3.0, Tue Sep 21 2021 12:06 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


0.01.02.03.04.0Magnitude0123Time since earthquake (minutes)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 (minutes)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
2021-09-20T12:09:15Z best 3.0 20.4 -39.86 176.91
2021-09-20T12:07:15Z preliminary 3.1 20.0 -39.86 176.91
2021-09-20T12:07:13Z preliminary 3.0 20.0 -39.86 176.91
2021-09-20T12:07:12Z preliminary 3.0 20.0 -39.86 176.91
2021-09-20T12:07:05Z preliminary 3.0 20.0 -39.86 176.91
2021-09-20T12:07:04Z preliminary 3.0 20.0 -39.86 176.91
2021-09-20T12:07:03Z preliminary 3.0 20.0 -39.86 176.91
2021-09-20T12:07:02Z preliminary 3.0 20.0 -39.86 176.91
2021-09-20T12:07:02Z automatic 3.0 21.6 -39.88 176.95
2021-09-20T12:06:54Z automatic 3.0 21.6 -39.88 176.95
2021-09-20T12:06:52Z automatic 3.0 21.6 -39.88 176.95
2021-09-20T12:06:51Z automatic 3.0 21.6 -39.88 176.95
2021-09-20T12:06:50Z automatic 3.1 21.6 -39.88 176.95
2021-09-20T12:06:49Z automatic 3.1 21.6 -39.88 176.95
2021-09-20T12:06:49Z automatic 3.1 21.6 -39.88 176.95
2021-09-20T12:06:47Z automatic 3.1 21.6 -39.88 176.95
2021-09-20T12:06:46Z automatic 3.1 21.6 -39.88 176.95