M4.3 earthquake 136 km W of Colchani, Bolivia
A magnitude 4.3 earthquake struck 136 km W of Colchani, Bolivia on Fri, Sep 21, 2018, 9:02 PM GMT-3 (00:02 UTC), 161 km (100 mi) below the surface.
A larger quake followed: M4.4 122 km E of Iquique, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-09-22 00:02:05 UTC
- Depth
- 160.7 km (99.8 mi), intermediate-depth
- Epicenter
- 20.075° S, 68.218° 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 7.1 km horizontally, 8.0 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 55°
- Stations used
- 72
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 todayBolivia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000hihk. Read Thu, Oct 1, 2026, 12:05 PM UTC.