Magnitude 1.8, Wed Apr 23 2025 5:38 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


0.01.02.03.04.0Magnitude012345678910111213141516Time 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)012345678910111213141516Time 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
2025-04-22T17:54:56Z best 1.8 140.3 -38.27 175.92
2025-04-22T17:40:04Z preliminary 2.1 145.2 -38.26 175.91
2025-04-22T17:39:59Z preliminary 2.0 145.2 -38.26 175.91
2025-04-22T17:39:58Z preliminary 1.8 145.2 -38.26 175.91
2025-04-22T17:39:51Z automatic 2.0 151.9 -38.59 175.96
2025-04-22T17:39:51Z automatic 2.0 151.9 -38.59 175.96
2025-04-22T17:39:39Z automatic 2.1 151.9 -38.59 175.96
2025-04-22T17:39:34Z automatic 3.1 151.9 -38.59 175.96
2025-04-22T17:39:31Z automatic 3.0 88.7 -38.44 176.05