Earthquake · Reviewed by USGS

M4.5 earthquake 25 km ESE of Coihueco, Chile

A magnitude 4.5 earthquake struck 25 km ESE of Coihueco, Chile at Aug 23, 2026, 20:38 UTC, at a depth of 100 km. The epicentre was 25 km (16 mi) ESE of Coihueco.

Details

Magnitude	4.5 mb
Time	Aug 23, 2026, 20:38 UTC
Depth	100.1 km
Coordinates	-36.742, -71.589
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

Coihueco25 km (16 mi)
Chillan48 km (30 mi)
San Carlos48 km (30 mi)
Chillan Viejo50 km (31 mi)
Parral70 km (43 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
4.0	45 km WNW of El Huecú, Argentina	94 km / 58 mi	depth 157 km	Sep 24, 23:19 UTC

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