M4.0 earthquake 72 km W of Arica, Chile
A magnitude 4.0 earthquake struck 72 km W of Arica, Chile on Tue, Dec 29, 2020, 2:45 AM GMT-3 (05:45 UTC), 25 km (15 mi) below the surface.
A larger quake followed: M4.4 138 km SW of Arica, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-12-29 05:45:04 UTC
- Depth
- 24.7 km (15.4 mi), shallow
- Epicenter
- 18.541° S, 70.979° 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 7.2 km horizontally, 5.5 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 143°
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 2 in the 30 days before it.
After
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000d3wx. Read Sat, Oct 3, 2026, 1:07 PM UTC.