Magnitude 0.5, Sun Aug 17 2025 8:38 PM


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


0.01.0Magnitude01234Time 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


0102030Depth (km)01234Time 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
2025-08-17T08:42:16Z best 0.5 20.7 -40.62 175.86
2025-08-17T08:42:16Z best 0.5 20.7 -40.62 175.86
2025-08-17T08:39:15Z automatic 0.9 25.0 -40.63 175.88
2025-08-17T08:38:59Z automatic 0.6 25.0 -40.63 175.88
2025-08-17T08:38:52Z automatic 0.6 25.0 -40.63 175.88