Magnitude 4.0, Thu Aug 3 2023 1:59 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


0.01.02.03.04.0Magnitude012Time since earthquake (weeks)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


02040Depth (km)012Time since earthquake (weeks)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
2023-08-17T03:19:43Z best 4.0 41.9 -44.13 169.21
2023-08-03T02:03:41Z best 4.0 41.0 -44.13 169.21
2023-08-03T02:01:29Z preliminary 3.9 39.7 -44.15 169.21
2023-08-03T02:01:28Z preliminary 3.8 39.7 -44.15 169.21
2023-08-03T02:01:24Z preliminary 3.8 39.7 -44.15 169.21
2023-08-03T02:01:23Z preliminary 3.8 39.7 -44.15 169.21
2023-08-03T02:01:14Z preliminary 3.8 39.7 -44.15 169.21
2023-08-03T02:01:14Z preliminary 3.8 39.7 -44.15 169.21
2023-08-03T02:01:14Z automatic 3.8 41.6 -44.15 169.31
2023-08-03T02:01:14Z automatic 3.8 41.6 -44.15 169.31
2023-08-03T02:01:14Z automatic 3.8 41.6 -44.15 169.31
2023-08-03T02:01:13Z automatic 3.8 41.6 -44.15 169.31
2023-08-03T02:00:59Z automatic 3.8 41.6 -44.15 169.31
2023-08-03T02:00:59Z automatic 3.8 41.6 -44.15 169.31
2023-08-03T02:00:56Z automatic 3.7 41.6 -44.15 169.31
2023-08-03T02:00:55Z automatic 3.7 41.6 -44.15 169.31
2023-08-03T02:00:54Z automatic 3.6 41.6 -44.15 169.31
2023-08-03T02:00:54Z automatic 3.6 41.6 -44.15 169.31
2023-08-03T02:00:47Z automatic 3.9 41.6 -44.15 169.31
2023-08-03T02:00:31Z automatic 3.8 45.3 -44.14 169.26