M4.7 earthquake 33 km SSW of Calama, Chile
A magnitude 4.7 earthquake struck 33 km SSW of Calama, Chile on Sat, Aug 24, 1974, 9:30 PM GMT-4 (01:30 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.3 51 km SW 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
- 4.7 (mb), light
- Local time
- UTC
- 1974-08-25 01:30:51 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 22.754° S, 69.005° 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
- OPERATOR_ASSIGNED
- Stations used
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.035 km W of San Pedro de Atacama, Chile · 19020 days ago · 151 km deep · 51 km away
- 5.351 km SW of San Pedro de Atacama, Chile · 19000 days ago · 106 km deep · 74 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007s7. Read Mon, Sep 28, 2026, 11:40 PM UTC.