M4.7 earthquake 137 km NE of Calama, Chile
A magnitude 4.7 earthquake struck 137 km NE of Calama, Chile on Wed, Aug 13, 1975, 4:29 AM GMT-4 (08:29 UTC), 176 km (109 mi) below the surface.
A larger quake followed: M5.1 152 km N of Calama, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1975-08-13 08:29:54 UTC
- Depth
- 176.0 km (109.4 mi), intermediate-depth
- Epicenter
- 21.431° S, 68.172° 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
- 31
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 2 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 usp0000cf1. Read Sun, Sep 27, 2026, 10:44 PM UTC.