M3.9 earthquake 11 km WSW of Coquimbo, Chile
A magnitude 3.9 earthquake struck 11 km WSW of Coquimbo, Chile on Fri, Sep 12, 1975, 1:03 AM GMT-4 (05:03 UTC), 59 km (37 mi) below the surface.
A larger quake followed: M4.9 66 km WSW of Coquimbo, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1975-09-12 05:03:58 UTC
- Depth
- 59.0 km (36.7 mi), shallow
- Epicenter
- 29.992° S, 71.451° 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.
- Stations used
- 8
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 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 usp0000cs9. Read Thu, Oct 1, 2026, 12:34 AM UTC.