M4.0 earthquake 107 km WSW of Colchani, Bolivia
A magnitude 4.0 earthquake struck 107 km WSW of Colchani, Bolivia on Fri, Aug 6, 2021, 4:45 AM GMT-4 (08:45 UTC), 203 km (126 mi) below the surface.
A larger quake followed: M4.5 149 km SW of Uyuni, Bolivia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-08-06 08:45:06 UTC
- Depth
- 202.9 km (126.1 mi), intermediate-depth
- Epicenter
- 20.792° S, 67.820° 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.
- Location uncertainty
- About 6.4 km horizontally, 15.1 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- From location
- Station coverage gap
- 78°
- Stations used
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.1108 km SSW of Uyuni, Bolivia · 1874 days ago · 192 km deep · 95 km away
- 4.5149 km SW of Uyuni, Bolivia · 1864 days ago · 206 km deep · 58 km away
- 4.418 km SSW of Uyuni, Bolivia · 1864 days ago · 255 km deep · 98 km away · felt by 1
- 4.2150 km N of Calama, Chile · 1829 days ago · 136 km deep · 97 km away
- 4.5157 km N of Calama, Chile · 1829 days ago · 131 km deep · 94 km away · felt by 1
Before
Earthquakes todayBolivia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000f2pd. Read Sat, Oct 3, 2026, 7:53 AM UTC.