Magnitude 4.9, Fri Aug 22 2025 2:06 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


0.01.02.03.04.05.06.0Magnitude0123Time since earthquake (hours)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


0100200300Depth (km)0123Time since earthquake (hours)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
2025-08-21T17:36:23Z best 4.9 140.0 -5.06 151.40
2025-08-21T14:16:58Z preliminary 5.2 156.0 2.16 147.53
2025-08-21T14:16:15Z automatic 2.4 283.9 -42.59 173.81
2025-08-21T14:16:15Z automatic 2.4 283.9 -42.59 173.81
2025-08-21T14:16:13Z automatic 2.3 283.9 -42.59 173.81
2025-08-21T14:16:13Z automatic 2.3 283.9 -42.59 173.81
2025-08-21T14:16:06Z automatic 2.2 283.9 -42.59 173.81
2025-08-21T14:15:48Z automatic 2.0 85.0 -37.98 177.14
2025-08-21T14:15:46Z automatic 2.0 85.0 -37.98 177.14
2025-08-21T14:15:44Z automatic 2.0 85.0 -37.98 177.14
2025-08-21T14:15:38Z automatic 2.0 85.0 -37.98 177.14
2025-08-21T14:15:28Z automatic 2.1 85.0 -37.98 177.14