M4.2 earthquake 135 km NNE of Calama, Chile
A magnitude 4.2 earthquake struck 135 km NNE of Calama, Chile on Sun, Oct 12, 1986, 4:34 PM GMT-3 (19:34 UTC), 127 km (79 mi) below the surface.
A larger quake followed: M4.9 136 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1986-10-12 19:34:22 UTC
- Depth
- 127.3 km (79.1 mi), intermediate-depth
- Epicenter
- 21.289° S, 68.523° 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 3 in the 30 days before it.
After
- 4.0118 km NNE of Calama, Chile · 14586 days ago · 129 km deep · 25 km away
- 4.9136 km NNE of Calama, Chile · 14578 days ago · 134 km deep · 32 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ywg. Read Fri, Oct 2, 2026, 8:10 AM UTC.