M4.3 earthquake 139 km NNE of Calama, Chile
A magnitude 4.3 earthquake struck 139 km NNE of Calama, Chile on Tue, Sep 6, 1983, 7:20 AM GMT-4 (11:20 UTC), 143 km (89 mi) below the surface.
A larger quake followed: M4.5 137 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
- 4.3 (mb), light
- Local time
- UTC
- 1983-09-06 11:20:57 UTC
- Depth
- 142.8 km (88.7 mi), intermediate-depth
- Epicenter
- 21.225° S, 68.639° 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.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.5137 km NNE of Calama, Chile · 15713 days ago · 95 km deep · 49 km away
- 4.8127 km NE of Calama, Chile · 15692 days ago · 117 km deep · 54 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001y5u. Read Tue, Sep 22, 2026, 9:33 PM UTC.