Magnitude 4.5, Tue Sep 21 2021 8:16 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


0.01.02.03.04.05.0Magnitude0123Time 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


020406080Depth (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
2021-10-18T21:36:36Z best 4.5 77.7 -44.97 167.45
2021-09-21T08:21:38Z best 4.6 77.7 -44.97 167.45
2021-09-21T08:18:25Z preliminary 4.5 75.9 -44.99 167.47
2021-09-21T08:18:23Z preliminary 4.5 75.9 -44.99 167.47
2021-09-21T08:18:17Z preliminary 4.5 75.9 -44.99 167.47
2021-09-21T08:17:53Z preliminary 4.4 75.9 -44.99 167.47
2021-09-21T08:17:51Z preliminary 4.5 75.9 -44.99 167.47
2021-09-21T08:17:50Z preliminary 4.5 75.9 -44.99 167.47
2021-09-21T08:17:43Z preliminary 4.4 75.9 -44.99 167.47
2021-09-21T08:17:36Z preliminary 4.4 75.9 -44.99 167.47
2021-09-21T08:17:36Z preliminary 4.4 75.9 -44.99 167.47
2021-09-21T08:17:36Z automatic 4.3 79.1 -45.05 167.76
2021-09-21T08:17:27Z automatic 4.3 79.1 -45.05 167.76
2021-09-21T08:17:16Z automatic 4.3 75.3 -45.09 167.64
2021-09-21T08:17:15Z automatic 4.3 75.3 -45.09 167.64
2021-09-21T08:17:13Z automatic 4.4 75.3 -45.09 167.64