Chile earthquakes

M5.5 earthquake 56 km ENE of Calama, Chile

A magnitude 5.5 earthquake struck 56 km ENE of Calama, Chile on Thu, Jul 21, 1983, 3:11 AM GMT-4 (07:11 UTC), 126 km (78 mi) below the surface.

Calama forecastMore in Chile

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
5.5 (mb), moderate
Local time
UTC
1983-07-21 07:11:33 UTC
Depth
126.1 km (78.4 mi), intermediate-depth
Epicenter
22.193° S, 68.451° 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.

Depth from
CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.5114 km NNE of Calama, Chile · 15760 days ago · 130 km deep · 71 km away
  2. 4.431 km NNE of Calama, Chile · 15757 days ago · 162 km deep · 35 km away
  3. 4.884 km NNE of Calama, Chile · 15751 days ago · 109 km deep · 60 km away
  4. 4.888 km NNE of Calama, Chile · 15745 days ago · 127 km deep · 50 km away
  5. 4.8Antofagasta, Chile · 15733 days ago · 127 km deep · 34 km away
  6. 4.5137 km NNE of Calama, Chile · 15712 days ago · 95 km deep · 91 km away

Before

  1. 4.841 km S of Calama, Chile · 15770 days ago · 126 km deep · 81 km away
  2. 4.859 km NE of Calama, Chile · 15771 days ago · 130 km deep · 12 km away
  3. 5.0123 km NNE of Calama, Chile · 15791 days ago · 132 km deep · 81 km away

Earthquakes todayChile earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001wzn (also filed as gcmtb072183a, gcmt19830721071133, iscgem572548). Read Tue, Sep 22, 2026, 9:57 AM UTC.