M6.9 earthquake 14 km SE of Ancud, Chile
A magnitude 6.9 earthquake struck 14 km SE of Ancud, Chile on Fri, Oct 11, 1940, 2:41 PM GMT-4 (18:41 UTC), 35 km (22 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.9 (mw), strong
- Local time
- UTC
- 1940-10-11 18:41:19 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 41.976° S, 73.712° W
- Region
- Chile
- Strongest shaking
- VII, very strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VII, very strong shaking
- Peak ground acceleration
- 35.8% of gravity
- Peak ground velocity
- 3.2 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.38
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem901645. Read Tue, Sep 22, 2026, 9:14 PM UTC.