Magnitude 3.1, Thu Aug 21 2025 1:08 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


0.01.02.03.04.0Magnitude01234567891011121314Time 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


010203040Depth (km)01234567891011121314Time 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
2025-08-20T13:22:38Z best 3.1 5.0 -36.96 177.14
2025-08-20T13:10:09Z preliminary 3.2 33.0 -36.99 177.15
2025-08-20T13:09:51Z automatic 3.2 30.1 -37.06 177.15
2025-08-20T13:09:50Z automatic 3.2 30.1 -37.06 177.15
2025-08-20T13:09:46Z automatic 3.2 30.1 -37.06 177.15
2025-08-20T13:09:38Z automatic 3.2 30.1 -37.06 177.15
2025-08-20T13:09:38Z automatic 3.2 30.1 -37.06 177.15
2025-08-20T13:09:35Z automatic 3.3 30.1 -37.06 177.15
2025-08-20T13:09:33Z automatic 3.3 30.1 -37.06 177.15
2025-08-20T13:09:33Z automatic 3.3 30.1 -37.06 177.15
2025-08-20T13:09:32Z automatic 3.3 30.1 -37.06 177.15
2025-08-20T13:09:31Z automatic 3.3 30.1 -37.06 177.15
2025-08-20T13:09:31Z automatic 3.3 30.1 -37.06 177.15
2025-08-20T13:09:31Z automatic 3.4 30.1 -37.06 177.15
2025-08-20T13:09:30Z automatic 3.4 30.1 -37.06 177.15
2025-08-20T13:09:28Z automatic 3.6 30.1 -37.06 177.15
2025-08-20T13:09:26Z automatic 3.6 30.1 -37.06 177.15
2025-08-20T13:09:25Z automatic 3.6 30.1 -37.06 177.15
2025-08-20T13:09:25Z automatic 3.6 30.1 -37.06 177.15
2025-08-20T13:09:23Z automatic 3.3 30.1 -37.06 177.15