M3.9 earthquake 53 km SW of Calama, Chile
A magnitude 3.9 earthquake struck 53 km SW of Calama, Chile on Tue, Mar 9, 2021, 7:14 PM GMT-3 (22:14 UTC), 89 km (55 mi) below the surface.
A larger quake followed: M4.7 63 km WSW 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
- 3.9 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-03-09 22:14:35 UTC
- Depth
- 88.8 km (55.2 mi), intermediate-depth
- Epicenter
- 22.809° S, 69.279° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.0 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.23
- Depth from
- From location
- Station coverage gap
- 69°
- Stations used
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.496 km WSW of Calama, Chile · 2029 days ago · 71 km deep · 46 km away · felt by 1
- 4.485 km NNE of Antofagasta, Chile · 2023 days ago · 52 km deep · 75 km away · felt by 1
- 4.040 km SE of Tocopilla, Chile · 1996 days ago · 58 km deep · 83 km away
- 4.247 km NNE of Calama, Chile · 1994 days ago · 137 km deep · 100 km away
- 4.763 km WSW of San Pedro de Atacama, Chile · 1982 days ago · 100 km deep · 71 km away · felt by 1
- 4.446 km SSE of Calama, Chile · 1977 days ago · 109 km deep · 54 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000dhj4. Read Fri, Oct 2, 2026, 7:07 PM UTC.