M4.5 earthquake 64 km NNW of Calama, Chile
A magnitude 4.5 earthquake struck 64 km NNW of Calama, Chile on Fri, Dec 7, 1973, 9:43 PM GMT-3 (00:43 UTC), 193 km (120 mi) below the surface.
A larger quake followed: M4.9 40 km ESE 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
- 4.5 (mb), light
- Local time
- UTC
- 1973-12-08 00:43:44 UTC
- Depth
- 193.0 km (119.9 mi), intermediate-depth
- Epicenter
- 21.900° S, 69.106° 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.
- Stations used
- 8
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 1 in the 30 days before it.
After
- 4.391 km NE of Calama, Chile · 19286 days ago · 121 km deep · 77 km away
- 4.940 km ESE of Calama, Chile · 19251 days ago · 91 km deep · 93 km away
- 4.785 km NE of Calama, Chile · 19240 days ago · 118 km deep · 81 km away
- 4.661 km NE of Calama, Chile · 19228 days ago · 118 km deep · 74 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00004fm. Read Sun, Sep 27, 2026, 11:43 PM UTC.