Magnitude 1.1, Thu Aug 21 2025 1:18 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


0.01.02.0Magnitude0123Time 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


010203040Depth (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
2025-08-20T16:54:17Z best 1.1 23.8 -41.64 174.01
2025-08-20T13:19:58Z preliminary 0.8 24.0 -41.64 174.00
2025-08-20T13:19:58Z automatic 0.9 34.3 -41.68 174.03
2025-08-20T13:19:58Z preliminary 0.8 24.0 -41.64 174.00
2025-08-20T13:19:53Z best 0.8 24.0 -41.64 174.00
2025-08-20T13:19:53Z automatic 0.9 34.3 -41.68 174.03
2025-08-20T13:19:50Z automatic 0.9 34.3 -41.68 174.03
2025-08-20T13:19:36Z automatic 0.9 34.3 -41.67 174.00