Magnitude 1.0, Wed Nov 22 2023 1:39 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


0.01.02.0Magnitude0123456789101112131415161718Time 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


01020Depth (km)0123456789101112131415161718Time 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
2023-11-21T12:57:27Z best 1.0 11.3 -39.51 175.72
2023-11-21T12:41:22Z preliminary 1.1 4.6 -39.54 175.67
2023-11-21T12:41:22Z automatic 1.0 16.5 -39.50 175.70
2023-11-21T12:40:59Z automatic 1.0 16.5 -39.50 175.70
2023-11-21T12:40:25Z automatic 1.0 16.5 -39.50 175.70
2023-11-21T12:40:25Z automatic 1.1 16.5 -39.50 175.70