Chile earthquakes

M4.0 earthquake 11 km NNE of Calama, Chile

A magnitude 4.0 earthquake struck 11 km NNE of Calama, Chile on Thu, May 20, 2021, 3:13 AM GMT-4 (07:13 UTC), 113 km (70 mi) below the surface.

A larger quake followed: M5.2 49 km ENE 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-05-20 07:13:30 UTC
Depth
113.0 km (70.2 mi), intermediate-depth
Epicenter
22.357° S, 68.899° 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 6.4 km horizontally, 8.2 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
66°
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: 11 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 5.249 km ENE of Calama, Chile · 1961 days ago · 115 km deep · 42 km away · felt by 2
  2. 4.2101 km NNE of Calama, Chile · 1953 days ago · 149 km deep · 91 km away
  3. 4.083 km NNE of Calama, Chile · 1949 days ago · 139 km deep · 73 km away
  4. 4.031 km ENE of Calama, Chile · 1945 days ago · 114 km deep · 26 km away
  5. 4.2Chile-Bolivia border region · 1931 days ago · 135 km deep · 96 km away
  6. 4.398 km NNE of Calama, Chile · 1925 days ago · 111 km deep · 88 km away
  7. 3.924 km E of Calama, Chile · 1924 days ago · 123 km deep · 23 km away
  8. 4.119 km SE of Calama, Chile · 1914 days ago · 109 km deep · 28 km away
  9. 4.461 km NNE of Calama, Chile · 1912 days ago · 125 km deep · 51 km away
  10. 4.391 km NNE of Calama, Chile · 1906 days ago · 129 km deep · 81 km away · felt by 1
  11. 4.690 km NNE of Calama, Chile · 1904 days ago · 147 km deep · 80 km away

Before

  1. 4.296 km NNE of Calama, Chile · 1968 days ago · 138 km deep · 86 km away · felt by 1
  2. 4.449 km NE of Calama, Chile · 1970 days ago · 113 km deep · 41 km away · felt by 1
  3. 4.3108 km NNE of Calama, Chile · 1970 days ago · 143 km deep · 97 km away · felt by 1
  4. 4.661 km NNE of Calama, Chile · 1974 days ago · 113 km deep · 50 km away · felt by 1
  5. 4.448 km NE of Calama, Chile · 1976 days ago · 117 km deep · 40 km away
  6. 4.446 km SSE of Calama, Chile · 1977 days ago · 109 km deep · 57 km away
  7. 4.763 km WSW of San Pedro de Atacama, Chile · 1982 days ago · 100 km deep · 96 km away · felt by 1
  8. 4.183 km NNE of Calama, Chile · 1989 days ago · 118 km deep · 72 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e4nr. Read Fri, Oct 2, 2026, 8:23 PM UTC.