Magnitude 2.5, Wed Jul 21 2021 9:16 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


0.01.02.03.0Magnitude01234567891011121314151617181920Time 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)01234567891011121314151617181920Time 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
2021-07-20T21:36:11Z best 2.5 7.0 -42.31 173.70
2021-07-20T21:17:45Z preliminary 2.4 11.6 -42.35 173.72
2021-07-20T21:17:43Z preliminary 2.5 11.6 -42.35 173.72
2021-07-20T21:17:29Z preliminary 2.4 11.6 -42.35 173.72
2021-07-20T21:17:25Z preliminary 2.4 11.6 -42.35 173.72
2021-07-20T21:17:22Z preliminary 2.3 11.6 -42.35 173.72
2021-07-20T21:17:13Z preliminary 2.2 11.6 -42.35 173.72
2021-07-20T21:16:57Z preliminary 2.0 11.6 -42.35 173.72
2021-07-20T21:16:57Z automatic 1.9 19.5 -42.34 173.69
2021-07-20T21:16:51Z automatic 1.9 19.5 -42.34 173.69