Magnitude 4.5, Fri Dec 31 2021 7:37 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


0.01.02.03.04.05.0Magnitude012345Time 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)012345Time 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
2021-12-31T06:42:31Z best 4.5 28.3 -37.35 177.74
2021-12-31T06:38:47Z preliminary 4.5 28.7 -37.37 177.77
2021-12-31T06:38:46Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:45Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:44Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:44Z automatic 4.6 40.2 -37.53 177.62
2021-12-31T06:38:38Z automatic 4.6 40.2 -37.53 177.62
2021-12-31T06:38:38Z automatic 4.6 40.2 -37.53 177.62
2021-12-31T06:38:37Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:36Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:36Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:33Z automatic 4.5 40.2 -37.53 177.62
2021-12-31T06:38:33Z automatic 4.5 38.3 -37.51 177.65
2021-12-31T06:38:32Z automatic 4.5 38.3 -37.51 177.65
2021-12-31T06:38:31Z automatic 4.3 38.3 -37.51 177.65
2021-12-31T06:38:31Z automatic 4.3 38.3 -37.51 177.65
2021-12-31T06:38:31Z automatic 4.3 38.3 -37.51 177.65
2021-12-31T06:38:25Z automatic 4.3 38.3 -37.51 177.65
2021-12-31T06:38:24Z automatic 4.3 38.3 -37.51 177.65
2021-12-31T06:38:24Z automatic 4.2 38.3 -37.51 177.65
2021-12-31T06:38:17Z automatic 4.2 38.3 -37.51 177.65
2021-12-31T06:38:16Z automatic 4.1 35.5 -37.53 177.66