M4.0 earthquake 66 km WNW of Vallenar, Chile
A magnitude 4.0 earthquake struck 66 km WNW of Vallenar, Chile on Wed, Dec 9, 2020, 9:46 PM GMT-3 (00:46 UTC), 29 km (18 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-12-10 00:46:36 UTC
- Depth
- 28.5 km (17.7 mi), shallow
- Epicenter
- 28.297° S, 71.364° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Strike-slip
- Moment magnitude
- 4.0 Mwr
- Nodal plane 1
- Strike 123°, dip 44°, rake 11°
- Nodal plane 2
- Strike 25°, dip 82°, rake 134°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.5 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 141°
- Stations used
- 43
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 6 in the 30 days before it.
Before
- 4.392 km WNW of Vallenar, Chile · 2124 days ago · 18 km deep · 26 km away · felt by 1
- 4.283 km WNW of Vallenar, Chile · 2127 days ago · 26 km deep · 16 km away
- 3.968 km NW of Vallenar, Chile · 2127 days ago · 30 km deep · 9 km away
- 4.3122 km NW of Vallenar, Chile · 2136 days ago · 10 km deep · 67 km away
- 4.2117 km NW of Vallenar, Chile · 2141 days ago · 21 km deep · 64 km away
- 4.837 km WNW of Vallenar, Chile · 2146 days ago · 43 km deep · 29 km away · felt by 3
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000cplf. Read Fri, Oct 2, 2026, 10:12 PM UTC.