M8.1 earthquake 45 km NNW of Illapel, Chile
A magnitude 8.1 earthquake struck 45 km NNW of Illapel, Chile on Tue, Apr 6, 1943, 12:07 PM GMT-4 (16:07 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
- 8.1 (mw), great
- Local time
- UTC
- 1943-04-06 16:07:18 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 31.262° S, 71.368° 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
- 30.8% of gravity
- Peak ground velocity
- 3.4 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
- ±0.40
- 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: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem899789. Read Tue, Sep 22, 2026, 11:35 AM UTC.