Magnitude 4.2, Sat Aug 23 2025 5:35 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


0.01.02.03.04.05.0Magnitude01234Time since earthquake (hours)Magnitude Historyp

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


0100200300400500600700Depth (km)01234Time since earthquake (hours)Depth Historyp

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
2025-08-23T09:41:04Z preliminary 4.2 562.1 -23.53 -179.88
2025-08-23T09:40:33Z best 4.2 562.1 -23.53 -179.88
2025-08-23T09:34:58Z preliminary 4.3 600.0 -23.91 -178.42
2025-08-23T05:47:55Z best 4.3 600.0 -23.91 -178.42
2025-08-23T05:47:49Z best 3.4 600.0 -23.91 -178.42
2025-08-23T05:44:27Z automatic 2.8 25.5 -36.80 176.57
2025-08-23T05:41:17Z automatic 2.8 25.5 -36.80 176.57
2025-08-23T05:41:16Z automatic 1.9 81.2 -40.58 173.78
2025-08-23T05:41:14Z automatic 2.8 25.5 -36.80 176.57
2025-08-23T05:41:13Z automatic 1.7 81.2 -40.58 173.78
2025-08-23T05:41:12Z automatic 1.6 81.2 -40.58 173.78
2025-08-23T05:41:09Z automatic 2.8 25.5 -36.80 176.57
2025-08-23T05:41:08Z automatic 1.3 81.2 -40.58 173.78
2025-08-23T05:41:06Z automatic 0.8 81.2 -40.58 173.78
2025-08-23T05:40:48Z automatic 2.8 25.5 -36.80 176.57
2025-08-23T05:40:47Z automatic 3.0 25.5 -36.80 176.57