Magnitude 2.3, Tue Apr 20 2021 7:22 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


0.01.02.03.0Magnitude0123Time 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


0100200Depth (km)0123Time 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
2021-04-19T19:26:19Z best 2.3 174.0 -37.99 176.09
2021-04-19T19:24:04Z preliminary 2.0 170.2 -37.94 176.15
2021-04-19T19:23:52Z preliminary 2.1 170.2 -37.94 176.15
2021-04-19T19:23:52Z automatic 1.6 135.3 -38.45 176.47
2021-04-19T19:23:51Z automatic 1.6 135.3 -38.45 176.47
2021-04-19T19:23:47Z automatic 1.5 108.1 -38.50 176.50
2021-04-19T19:23:43Z automatic 1.2 108.1 -38.50 176.50
2021-04-19T19:23:34Z automatic 0.8 108.1 -38.50 176.50