M4.2 earthquake 57 km SSW of San Antonio, Chile
A magnitude 4.2 earthquake struck 57 km SSW of San Antonio, Chile on Sat, Sep 13, 1986, 10:42 PM GMT-4 (02:42 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.0 58 km WNW of Cartagena, 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
- 1986-09-14 02:42:50 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 34.028° S, 71.949° 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
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.065 km WNW of Cartagena, Chile · 14625 days ago · 33 km deep · 73 km away
- 4.747 km WNW of Cartagena, Chile · 14614 days ago · 46 km deep · 69 km away
- 4.661 km WNW of Cartagena, Chile · 14614 days ago · 40 km deep · 72 km away
- 4.323 km W of San Antonio, Chile · 14611 days ago · 58 km deep · 49 km away
- 5.058 km WNW of Cartagena, Chile · 14601 days ago · 17 km deep · 70 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002y2a. Read Fri, Oct 2, 2026, 9:44 PM UTC.