Magnitude 1.8, Sun Apr 20 2025 4:33 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


0.01.02.0Magnitude024681012141618202224262830323436384042444648505254Time 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


0102030Depth (km)024681012141618202224262830323436384042444648505254Time 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
2025-04-19T17:29:25Z best 1.8 25.7 -39.02 177.50
2025-04-19T16:35:51Z preliminary 1.8 24.7 -39.01 177.51
2025-04-19T16:35:33Z automatic 1.7 21.0 -39.01 177.47
2025-04-19T16:35:25Z automatic 1.7 21.0 -39.01 177.47
2025-04-19T16:35:05Z automatic 1.7 21.0 -39.01 177.47
2025-04-19T16:35:05Z automatic 1.7 21.0 -39.01 177.47
2025-04-19T16:35:03Z automatic 1.7 21.0 -39.01 177.47
2025-04-19T16:35:03Z automatic 1.7 21.0 -39.01 177.47
2025-04-19T16:35:01Z automatic 1.6 21.0 -39.01 177.47
2025-04-19T16:34:58Z automatic 1.6 21.0 -39.01 177.47
2025-04-19T16:34:54Z automatic 1.6 19.2 -39.02 177.47
2025-04-19T16:34:49Z automatic 1.4 19.2 -39.02 177.47
2025-04-19T16:34:46Z automatic 1.5 19.2 -39.02 177.47