Magnitude 4.7, Thu Aug 21 2025 5:13 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


0.01.02.03.04.05.0Magnitude01234567891011Time 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)01234567891011Time 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
2025-08-20T17:24:44Z best 4.7 33.0 -30.21 -177.62
2025-08-20T17:21:35Z preliminary 4.7 33.0 -30.20 -177.85
2025-08-20T17:19:21Z automatic 2.7 37.5 -39.08 176.82
2025-08-20T17:19:12Z automatic 2.7 37.5 -39.08 176.82
2025-08-20T17:19:08Z automatic 2.7 37.5 -39.08 176.82
2025-08-20T17:17:10Z automatic 2.3 33.8 -37.48 178.22
2025-08-20T17:17:09Z automatic 2.3 33.8 -37.48 178.22
2025-08-20T17:17:08Z automatic 2.2 33.8 -37.48 178.22
2025-08-20T17:17:04Z automatic 2.1 33.8 -37.48 178.22
2025-08-20T17:16:51Z automatic 2.0 33.8 -37.48 178.22
2025-08-20T17:16:44Z automatic 2.0 33.8 -37.48 178.22
2025-08-20T17:16:30Z automatic 2.2 33.8 -37.48 178.22