M4.3 earthquake 91 km NE of Calama, Chile
A magnitude 4.3 earthquake struck 91 km NE of Calama, Chile on Sat, Dec 8, 1973, 11:36 PM GMT-3 (02:36 UTC), 121 km (75 mi) below the surface.
A larger quake followed: M6.4 45 km NNW 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
- 4.3 (mb), light
- Local time
- UTC
- 1973-12-09 02:36:36 UTC
- Depth
- 121.0 km (75.2 mi), intermediate-depth
- Epicenter
- 21.815° S, 68.362° 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
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 6.445 km NNW of San Pedro de Atacama, Chile · 19262 days ago · 105 km deep · 80 km away
- 5.334 km NNW of San Pedro de Atacama, Chile · 19262 days ago · 99 km deep · 92 km away
- 4.944 km NNW of San Pedro de Atacama, Chile · 19261 days ago · 102 km deep · 81 km away
- 4.1Antofagasta, Chile · 19261 days ago · 149 km deep · 65 km away
- 4.745 km NNW of San Pedro de Atacama, Chile · 19252 days ago · 102 km deep · 79 km away
- 4.940 km ESE of Calama, Chile · 19252 days ago · 91 km deep · 85 km away
- 4.785 km NE of Calama, Chile · 19240 days ago · 118 km deep · 14 km away
- 4.661 km NE of Calama, Chile · 19229 days ago · 118 km deep · 37 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00004g0. Read Mon, Sep 28, 2026, 1:31 PM UTC.