M4.0 earthquake 56 km N of Calama, Chile
A magnitude 4.0 earthquake struck 56 km N of Calama, Chile on Thu, Dec 26, 1985, 2:01 PM GMT-3 (17:01 UTC), 84 km (52 mi) below the surface.
A larger quake followed: M4.6 145 km NNE 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
- 4.0 (mb), light
- Local time
- UTC
- 1985-12-26 17:01:54 UTC
- Depth
- 84.2 km (52.3 mi), intermediate-depth
- Epicenter
- 21.951° S, 68.914° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.5136 km N of Calama, Chile · 14843 days ago · 111 km deep · 82 km away
- 4.6145 km NNE of Calama, Chile · 14834 days ago · 123 km deep · 93 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002peq. Read Thu, Sep 24, 2026, 1:01 PM UTC.