Magnitude 4.0, Tue Aug 19 2025 9:03 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


0.01.02.03.04.05.0Magnitude0123456789101112131415161718Time 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


0100Depth (km)0123456789101112131415161718Time 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
2025-08-19T09:22:32Z best 4.0 100.0 -49.53 163.22
2025-08-19T09:10:40Z preliminary 4.3 33.0 -49.61 163.27