Magnitude 3.9, Wed Aug 20 2025 7:40 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


0.01.02.03.04.0Magnitude0123456789Time 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


0100200300Depth (km)0123456789Time 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
2025-08-19T19:50:38Z best 3.9 300.0 -31.60 -179.38
2025-08-19T19:46:16Z preliminary 3.9 300.0 -31.58 -179.52
2025-08-19T19:44:30Z automatic 1.8 60.8 -38.43 176.55
2025-08-19T19:43:44Z automatic 1.6 60.8 -38.43 176.55
2025-08-19T19:43:16Z automatic 1.1 60.8 -38.43 176.55
2025-08-19T19:43:12Z automatic 1.2 60.8 -38.43 176.55