M4.8 earthquake 141 km NNE of Calama, Chile
A magnitude 4.8 earthquake struck 141 km NNE of Calama, Chile on Mon, Aug 27, 1973, 8:31 PM GMT-4 (00:31 UTC), 113 km (70 mi) below the surface.
A larger quake followed: M5.1 133 km WSW of Colchani, Bolivia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1973-08-28 00:31:19 UTC
- Depth
- 113.0 km (70.2 mi), intermediate-depth
- Epicenter
- 21.233° S, 68.522° 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
- CONSTRAINED_BY_DEPTH_PHASES
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.799 km NNE of Calama, Chile · 19364 days ago · 120 km deep · 43 km away
- 4.2161 km NNE of Calama, Chile · 19352 days ago · 110 km deep · 34 km away
- 5.1133 km WSW of Colchani, Bolivia · 19352 days ago · 107 km deep · 62 km away
- 4.0148 km SE of Iquique, Chile · 19351 days ago · 141 km deep · 58 km away
- 4.7117 km SW of Uyuni, Bolivia · 19351 days ago · 173 km deep · 94 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000038d. Read Sat, Sep 26, 2026, 12:12 PM UTC.