Magnitude 1.8, Sat Aug 23 2025 4:02 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


0.01.02.0Magnitude01234567891011121314151617Time 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)01234567891011121314151617Time 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
2025-08-22T16:20:29Z best 1.8 77.9 -37.75 176.77
2025-08-22T16:04:20Z preliminary 1.8 84.2 -37.67 176.79
2025-08-22T16:04:10Z automatic 1.6 76.6 -37.95 176.87
2025-08-22T16:04:10Z automatic 1.6 76.6 -37.95 176.87
2025-08-22T16:04:02Z automatic 1.5 76.6 -37.95 176.87
2025-08-22T16:04:02Z automatic 1.5 76.6 -37.95 176.87
2025-08-22T16:04:01Z automatic 1.4 76.6 -37.95 176.87
2025-08-22T16:04:01Z automatic 1.4 76.6 -37.95 176.87
2025-08-22T16:03:56Z automatic 1.2 76.6 -37.95 176.87
2025-08-22T16:03:56Z automatic 1.2 76.6 -37.95 176.87
2025-08-22T16:03:52Z automatic 1.0 76.6 -37.95 176.87
2025-08-22T16:03:44Z automatic 1.3 58.9 -37.93 177.00