Chile earthquakes

M4.1 earthquake 80 km WSW of Copiapó, Chile

A magnitude 4.1 earthquake struck 80 km WSW of Copiapó, Chile on Sun, Nov 8, 2020, 12:34 AM GMT-3 (03:34 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M4.8 37 km WNW of Vallenar, Chile. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.1 (Mwr, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-11-08 03:34:29 UTC
Depth
27.9 km (17.4 mi), shallow
Epicenter
27.760° S, 71.013° 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
4.1 Mwr
Nodal plane 1
Strike 8°, dip 40°, rake 113°
Nodal plane 2
Strike 159°, dip 54°, rake 72°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.1 km horizontally, 3.0 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
142°
Stations used
34

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.250 km WSW of Copiapó, Chile · 2152 days ago · 48 km deep · 34 km away
  2. 4.837 km WNW of Vallenar, Chile · 2146 days ago · 43 km deep · 75 km away · felt by 3
  3. 4.2117 km NW of Vallenar, Chile · 2140 days ago · 21 km deep · 48 km away
  4. 4.3122 km NW of Vallenar, Chile · 2135 days ago · 10 km deep · 53 km away
  5. 3.968 km NW of Vallenar, Chile · 2126 days ago · 30 km deep · 60 km away
  6. 4.283 km WNW of Vallenar, Chile · 2126 days ago · 26 km deep · 70 km away
  7. 4.392 km WNW of Vallenar, Chile · 2124 days ago · 18 km deep · 70 km away · felt by 1
  8. 4.066 km WNW of Vallenar, Chile · 2122 days ago · 29 km deep · 69 km away · felt by 1

Before

  1. 4.955 km W of Copiapó, Chile · 2175 days ago · 32 km deep · 52 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000cc02. Read Fri, Oct 2, 2026, 9:04 AM UTC.