Magnitude 1.8, Mon Apr 21 2025 10:20 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


0.01.02.0Magnitude0123456789101112131415161718192021Time 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


01234567Depth (km)0123456789101112131415161718192021Time 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
2025-04-21T10:42:01Z best 1.8 5.0 -43.20 170.89
2025-04-21T10:22:09Z preliminary 1.9 5.0 -43.19 170.91
2025-04-21T10:22:06Z automatic 1.7 5.2 -43.20 170.95
2025-04-21T10:22:06Z automatic 1.7 5.2 -43.20 170.95
2025-04-21T10:22:04Z automatic 1.7 5.2 -43.20 170.95
2025-04-21T10:21:59Z automatic 1.7 5.2 -43.20 170.95
2025-04-21T10:21:53Z automatic 1.7 5.2 -43.20 170.95
2025-04-21T10:21:50Z automatic 1.7 5.2 -43.20 170.95