M4.4 earthquake 31 km NNE of Calama, Chile
A magnitude 4.4 earthquake struck 31 km NNE of Calama, Chile on Tue, Aug 2, 1983, 3:46 AM GMT-4 (07:46 UTC), 162 km (101 mi) below the surface.
A larger quake followed: M4.9 27 km NW of San Pedro de Atacama, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1983-08-02 07:46:33 UTC
- Depth
- 162.4 km (100.9 mi), intermediate-depth
- Epicenter
- 22.197° S, 68.795° 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.
How well it is located
Reviewed by a seismologist.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.884 km NNE of Calama, Chile · 15760 days ago · 109 km deep · 54 km away
- 4.888 km NNE of Calama, Chile · 15753 days ago · 127 km deep · 57 km away
- 4.8Antofagasta, Chile · 15742 days ago · 127 km deep · 14 km away
- 4.927 km NW of San Pedro de Atacama, Chile · 15714 days ago · 178 km deep · 75 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001x9s. Read Wed, Sep 30, 2026, 4:31 PM UTC.