Magnitude 4.9, Sat Sep 4 2021 4:54 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


0.01.02.03.04.05.0Magnitude012345678910Time 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


010203040Depth (km)012345678910Time 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
2021-09-04T05:04:48Z best 4.9 35.6 -39.92 176.57
2021-09-04T04:57:12Z preliminary 4.9 36.6 -39.93 176.56
2021-09-04T04:55:29Z preliminary 4.8 37.3 -39.95 176.59
2021-09-04T04:55:28Z preliminary 4.7 37.3 -39.95 176.59
2021-09-04T04:55:27Z preliminary 4.8 37.3 -39.95 176.59
2021-09-04T04:55:24Z preliminary 4.7 37.3 -39.95 176.59
2021-09-04T04:55:21Z preliminary 4.7 37.3 -39.95 176.59
2021-09-04T04:55:19Z preliminary 4.7 37.3 -39.95 176.59
2021-09-04T04:55:15Z preliminary 4.6 37.3 -39.95 176.59