Magnitude 2.1, Fri Jul 18 2025 9:38 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


0.01.02.03.0Magnitude0123456Time 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


020406080Depth (km)0123456Time 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
2025-07-17T21:45:10Z best 2.1 52.3 -42.10 172.87
2025-07-17T21:45:10Z preliminary 2.0 42.8 -42.11 172.86
2025-07-17T21:41:24Z preliminary 2.2 42.8 -42.11 172.86
2025-07-17T21:40:32Z automatic 2.4 76.6 -42.07 172.92
2025-07-17T21:40:31Z automatic 2.4 76.6 -42.07 172.92
2025-07-17T21:40:30Z automatic 2.8 76.6 -42.07 172.92