Magnitude 2.2, Thu Aug 21 2025 3:58 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


0.01.02.03.0Magnitude01Time 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


0100Depth (km)01Time 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
2025-08-20T17:22:11Z best 2.2 139.9 -38.09 176.01
2025-08-20T16:01:39Z preliminary 2.1 164.8 -38.29 176.08
2025-08-20T16:01:38Z automatic 2.0 42.2 -38.92 175.64
2025-08-20T16:00:39Z automatic 2.1 42.2 -38.92 175.64
2025-08-20T16:00:22Z automatic 2.0 42.2 -38.92 175.64
2025-08-20T16:00:15Z automatic 2.1 42.2 -38.92 175.64