Earthquake · Reviewed by USGS

M4.3 earthquake 66 km NNE of Alotau, Papua New Guinea

A magnitude 4.3 earthquake struck 66 km NNE of Alotau, Papua New Guinea at Nov 20, 2025, 11:37 UTC, at a depth of 10 km. The epicentre was 289 km (179 mi) ESE of Popondetta.

Details

Magnitude	4.3 mb
Time	Nov 20, 2025, 11:37 UTC
Depth	10.0 km
Coordinates	-9.753, 150.665
Felt reports	0
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

Popondetta289 km (179 mi)

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
4.8	108 km NW of Alotau, Papua New Guinea	90 km / 56 mi	depth 10 km	Mar 11, 13:03 UTC
4.7	103 km NW of Alotau, Papua New Guinea	95 km / 59 mi	depth 10 km	Feb 25, 17:44 UTC
4.3	100 km NE of Alotau, Papua New Guinea	47 km / 29 mi	depth 10 km	Feb 4, 01:07 UTC
4.8	112 km NNW of Alotau, Papua New Guinea	78 km / 48 mi	depth 9 km	Nov 22, 19:11 UTC
4.6	111 km NE of Alotau, Papua New Guinea	61 km / 38 mi	depth 10 km	Nov 19, 14:00 UTC

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.