M4.2 earthquake 14 km ESE of Calama, Chile
A magnitude 4.2 earthquake struck 14 km ESE of Calama, Chile on Thu, Dec 3, 2015, 11:55 AM GMT-3 (14:55 UTC), 87 km (54 mi) below the surface.
A larger quake followed: M4.7 57 km S 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
- 4.2 (mb), light
- Local time
- UTC
- 2015-12-03 14:55:39 UTC
- Depth
- 87.4 km (54.3 mi), intermediate-depth
- Epicenter
- 22.522° S, 68.807° 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.
- Location uncertainty
- About 7.1 km horizontally, 5.6 km in depth
- Magnitude uncertainty
- ±0.18
- Stations used
- 0
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 3 in the 30 days before it.
After
- 4.172 km NNE of Calama, Chile · 3941 days ago · 106 km deep · 75 km away
- 4.360 km NE of Calama, Chile · 3926 days ago · 108 km deep · 60 km away
- 4.757 km S of Calama, Chile · 3906 days ago · 97 km deep · 54 km away
- 4.163 km NE of Calama, Chile · 3904 days ago · 108 km deep · 63 km away
- 4.494 km NNE of Calama, Chile · 3902 days ago · 120 km deep · 96 km away
- 4.6103 km NE of Calama, Chile · 3894 days ago · 116 km deep · 98 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000431k. Read Tue, Sep 29, 2026, 3:32 PM UTC.