M4.2 earthquake 128 km N of Calama, Chile
A magnitude 4.2 earthquake struck 128 km N of Calama, Chile on Fri, Oct 11, 1985, 4:28 PM GMT-4 (20:28 UTC), 121 km (75 mi) below the surface.
A larger quake followed: M5.0 110 km NE of Tocopilla, 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
- 1985-10-11 20:28:36 UTC
- Depth
- 120.7 km (75.0 mi), intermediate-depth
- Epicenter
- 21.302° S, 69.032° 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.1127 km ESE of Iquique, Chile · 14959 days ago · 134 km deep · 89 km away
- 5.0110 km NE of Tocopilla, Chile · 14924 days ago · 33 km deep · 40 km away
- 4.190 km N of Calama, Chile · 14912 days ago · 168 km deep · 39 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002kq4. Read Sun, Sep 27, 2026, 10:18 PM UTC.