Magnitude 2.1, Sun Sep 19 2021 6:10 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


0.01.02.03.0Magnitude01234567891011121314Time 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


012345Depth (km)01234567891011121314Time 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
2021-09-18T18:25:52Z best 2.1 4.0 -43.56 172.71
2021-09-18T18:13:00Z preliminary 2.0 3.8 -43.57 172.70
2021-09-18T18:12:51Z preliminary 1.9 3.8 -43.57 172.70
2021-09-18T18:12:42Z preliminary 1.7 3.8 -43.57 172.70
2021-09-18T18:12:42Z preliminary 1.6 3.8 -43.57 172.70