Magnitude 3.4, Mon Oct 18 2021 9:37 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


0.01.02.03.04.0Magnitude012345Time 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


0102030Depth (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
2021-10-17T20:43:09Z best 3.4 21.5 -38.27 178.54
2021-10-17T20:39:23Z preliminary 3.7 20.9 -38.26 178.53
2021-10-17T20:39:23Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:17Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:16Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:09Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:08Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:06Z automatic 3.8 28.9 -38.30 178.53
2021-10-17T20:39:06Z automatic 3.8 28.9 -38.30 178.53
2021-10-17T20:39:02Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:01Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:01Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:39:00Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:38:59Z automatic 3.7 28.9 -38.30 178.53
2021-10-17T20:38:55Z automatic 3.6 28.9 -38.30 178.53
2021-10-17T20:38:54Z automatic 3.6 28.9 -38.30 178.53
2021-10-17T20:38:52Z automatic 3.5 28.9 -38.30 178.53
2021-10-17T20:38:49Z automatic 3.5 28.9 -38.30 178.53
2021-10-17T20:38:48Z automatic 3.3 20.5 -38.24 178.43
2021-10-17T20:38:46Z automatic 3.2 20.5 -38.24 178.43
2021-10-17T20:38:42Z automatic 3.1 20.5 -38.24 178.43
2021-10-17T20:38:41Z automatic 3.1 20.5 -38.24 178.43