Magnitude 1.7, Thu Aug 21 2025 9:30 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


02040Depth (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
2025-08-20T21:36:46Z best 1.7 47.2 -38.54 177.53
2025-08-20T21:36:46Z automatic 1.9 48.2 -38.56 177.52
2025-08-20T21:32:31Z automatic 2.0 48.2 -38.56 177.52
2025-08-20T21:31:29Z automatic 1.9 48.2 -38.56 177.52
2025-08-20T21:31:29Z automatic 1.9 48.2 -38.56 177.52
2025-08-20T21:31:28Z automatic 1.9 48.2 -38.56 177.52
2025-08-20T21:31:26Z automatic 1.8 48.2 -38.56 177.52
2025-08-20T21:31:26Z automatic 1.8 48.2 -38.56 177.52
2025-08-20T21:31:25Z automatic 1.6 48.2 -38.56 177.52
2025-08-20T21:31:22Z automatic 1.6 48.2 -38.56 177.52
2025-08-20T21:31:18Z automatic 1.6 48.2 -38.56 177.52
2025-08-20T21:31:12Z automatic 1.6 39.9 -38.53 177.50
2025-08-20T21:31:11Z automatic 1.7 39.9 -38.53 177.50