Magnitude 2.1, Thu Jul 22 2021 1:31 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


0.01.02.03.0Magnitude012Time 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


0102030Depth (km)012Time 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
2021-07-22T01:33:58Z best 2.1 26.0 -39.23 174.81
2021-07-22T01:32:51Z preliminary 2.2 5.5 -39.09 174.97
2021-07-22T01:32:41Z preliminary 1.9 5.5 -39.09 174.97
2021-07-22T01:32:36Z preliminary 1.9 5.5 -39.09 174.97
2021-07-22T01:32:32Z preliminary 1.9 5.5 -39.09 174.97
2021-07-22T01:32:25Z preliminary 2.1 5.5 -39.09 174.97
2021-07-22T01:32:16Z preliminary 2.3 5.5 -39.09 174.97
2021-07-22T01:32:16Z preliminary 2.3 5.5 -39.09 174.97
2021-07-22T01:32:09Z automatic 2.3 5.5 -39.09 174.97