M4.2 earthquake 94 km SW of Taltal, Chile
A magnitude 4.2 earthquake struck 94 km SW of Taltal, Chile on Sun, Oct 17, 2021, 10:04 AM GMT-3 (13:04 UTC), 16 km (10 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-10-17 13:04:04 UTC
- Depth
- 16.2 km (10.1 mi), shallow
- Epicenter
- 26.029° S, 71.123° 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.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 4.2 Mwr
- Nodal plane 1
- Strike 173°, dip 76°, rake 66°
- Nodal plane 2
- Strike 55°, dip 28°, rake 149°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.9 km horizontally, 3.9 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 141°
- Stations used
- 41
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 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000fvf1. Read Mon, Oct 5, 2026, 1:17 PM UTC.