M5.1 earthquake 137 km SSW of Atocha, Bolivia
A magnitude 5.1 earthquake struck 137 km SSW of Atocha, Bolivia on Thu, Aug 21, 1975, 1:03 AM GMT-4 (05:03 UTC), 186 km (116 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1975-08-21 05:03:37 UTC
- Depth
- 186.0 km (115.6 mi), intermediate-depth
- Epicenter
- 21.979° S, 66.938° W
- Region
- Bolivia
- 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
- 54
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayBolivia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000chx. Read Wed, Sep 30, 2026, 2:27 AM UTC.