M6.4 earthquake 64 km W of Illapel, Chile
A magnitude 6.4 earthquake struck 64 km W of Illapel, Chile on Wed, Apr 7, 1943, 7:17 PM GMT-4 (23:17 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M6.5 67 km NW of La Ligua, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.4 (mw), strong
- Local time
- UTC
- 1943-04-07 23:17:54 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 31.575° S, 71.843° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
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
- ±0.20
- 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: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 6.567 km NW of La Ligua, Chile · 30477 days ago · 25 km deep · 54 km away
- 6.355 km WSW of Ovalle, Chile · 30440 days ago · 35 km deep · 80 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem899796. Read Tue, Sep 22, 2026, 11:25 PM UTC.