M4.2 earthquake 119 km WSW of Colchani, Bolivia
A magnitude 4.2 earthquake struck 119 km WSW of Colchani, Bolivia on Tue, Aug 2, 2016, 10:25 AM GMT-4 (14:25 UTC), 173 km (107 mi) below the surface.
A larger quake followed: M5.1 117 km NNE 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
- 4.2 (mb), light
- Local time
- UTC
- 2016-08-02 14:25:07 UTC
- Depth
- 172.6 km (107.2 mi), intermediate-depth
- Epicenter
- 20.825° S, 67.934° 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 10.3 km horizontally, 13.5 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 108°
- Stations used
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.1119 km NNE of Calama, Chile · 3699 days ago · 127 km deep · 90 km away
- 4.1145 km ESE of Iquique, Chile · 3679 days ago · 116 km deep · 96 km away
- 5.0124 km SW of Uyuni, Bolivia · 3677 days ago · 148 km deep · 51 km away
- 4.2116 km NE of Calama, Chile · 3676 days ago · 133 km deep · 95 km away
- 4.384 km WSW of Uyuni, Bolivia · 3673 days ago · 210 km deep · 45 km away
- 5.1117 km NNE of Calama, Chile · 3658 days ago · 104 km deep · 90 km away · felt by 2
Before
Earthquakes todayBolivia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100069fw. Read Wed, Sep 30, 2026, 11:03 PM UTC.