Magnitude 1.8, Mon Jul 21 2025 9:58 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


0.01.02.03.0Magnitude0123Time 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


012345678Depth (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
2025-07-21T01:40:03Z best 1.8 5.0 -44.40 168.04
2025-07-20T22:04:30Z preliminary 2.1 5.0 -44.39 168.04
2025-07-20T22:00:21Z automatic 2.5 5.9 -44.38 168.07
2025-07-20T21:59:51Z automatic 2.1 5.9 -44.38 168.07