Chile earthquakes

M4.2 earthquake 107 km NNE of Calama, Chile

A magnitude 4.2 earthquake struck 107 km NNE of Calama, Chile on Tue, Dec 1, 2020, 3:15 AM GMT-3 (06:15 UTC), 115 km (71 mi) below the surface.

A larger quake followed: M6.0 75 km NNE of Calama, Chile. This one was a foreshock.

Calama forecastMore in Chile

Map

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

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The earthquake

Magnitude
4.2 (Mwr, regional moment), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-12-01 06:15:40 UTC
Depth
114.9 km (71.4 mi), intermediate-depth
Epicenter
21.546° S, 68.553° 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
Strike-slip
Moment magnitude
4.2 Mwr
Nodal plane 1
Strike 333°, dip 42°, rake -17°
Nodal plane 2
Strike 76°, dip 79°, rake -130°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.2 km horizontally, 5.1 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
41°
Stations used
119

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.6132 km N of Calama, Chile · 2130 days ago · 116 km deep · 48 km away
  2. 4.2115 km N of Calama, Chile · 2127 days ago · 118 km deep · 29 km away
  3. 4.6145 km N of Calama, Chile · 2124 days ago · 119 km deep · 57 km away · felt by 1
  4. 4.3149 km ESE of Iquique, Chile · 2119 days ago · 104 km deep · 88 km away
  5. 6.075 km NNE of Calama, Chile · 2118 days ago · 114 km deep · 33 km away · felt by 38
  6. 4.3144 km SW of Colchani, Bolivia · 2117 days ago · 185 km deep · 74 km away
  7. 4.055 km NNE of Calama, Chile · 2112 days ago · 121 km deep · 53 km away
  8. 4.249 km NNE of Calama, Chile · 2112 days ago · 118 km deep · 59 km away
  9. 4.229 km E of Calama, Chile · 2108 days ago · 111 km deep · 99 km away
  10. 4.2134 km NNE of Calama, Chile · 2106 days ago · 135 km deep · 29 km away · felt by 2
  11. 4.0134 km N of Calama, Chile · 2104 days ago · 132 km deep · 42 km away
  12. 4.1156 km ESE of Iquique, Chile · 2090 days ago · 106 km deep · 76 km away
  13. 4.982 km NNE of Calama, Chile · 2090 days ago · 117 km deep · 27 km away · felt by 1

Before

  1. 4.2104 km NNE of Calama, Chile · 2133 days ago · 138 km deep · 3 km away
  2. 4.165 km NE of Calama, Chile · 2134 days ago · 138 km deep · 51 km away
  3. 4.3156 km N of Calama, Chile · 2137 days ago · 151 km deep · 53 km away
  4. 4.4135 km N of Calama, Chile · 2142 days ago · 125 km deep · 47 km away
  5. 4.172 km NE of Calama, Chile · 2143 days ago · 126 km deep · 43 km away
  6. 4.283 km NNE of Calama, Chile · 2143 days ago · 108 km deep · 26 km away
  7. 4.3134 km N of Calama, Chile · 2148 days ago · 128 km deep · 57 km away
  8. 4.5135 km WSW of Uyuni, Bolivia · 2156 days ago · 163 km deep · 81 km away
  9. 4.598 km NNE of Calama, Chile · 2160 days ago · 140 km deep · 11 km away
  10. 4.3103 km NE of Calama, Chile · 2162 days ago · 126 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000clj4. Read Sat, Oct 3, 2026, 2:34 AM UTC.