Chile earthquakes

M4.1 earthquake 42 km SSE of Calama, Chile

A magnitude 4.1 earthquake struck 42 km SSE of Calama, Chile on Fri, Apr 21, 2023, 7:53 AM GMT-4 (11:53 UTC), 123 km (77 mi) below the surface.

A larger quake followed: M4.8 26 km SE 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-04-21 11:53:07 UTC
Depth
123.2 km (76.6 mi), intermediate-depth
Epicenter
22.788° S, 68.713° 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 5.7 km horizontally, 4.3 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
76°
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: 9 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.419 km ENE of Calama, Chile · 1246 days ago · 112 km deep · 41 km away · felt by 1
  2. 4.261 km N of Calama, Chile · 1237 days ago · 140 km deep · 98 km away
  3. 4.258 km NE of San Pedro de Atacama, Chile · 1236 days ago · 166 km deep · 94 km away
  4. 4.544 km E of Calama, Chile · 1230 days ago · 123 km deep · 49 km away
  5. 4.468 km NE of Calama, Chile · 1222 days ago · 10 km deep · 95 km away
  6. 4.3Antofagasta, Chile · 1215 days ago · 121 km deep · 54 km away
  7. 4.650 km NNE of Calama, Chile · 1210 days ago · 106 km deep · 86 km away
  8. 4.221 km NNE of Calama, Chile · 1208 days ago · 128 km deep · 57 km away
  9. 4.826 km SE of Calama, Chile · 1203 days ago · 112 km deep · 18 km away · felt by 3

Before

  1. 4.159 km NNE of Calama, Chile · 1270 days ago · 110 km deep · 93 km away
  2. 4.551 km SSE of Calama, Chile · 1289 days ago · 116 km deep · 16 km away · felt by 1
  3. 4.433 km S of Calama, Chile · 1291 days ago · 111 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k621. Read Sat, Oct 3, 2026, 7:03 PM UTC.