Chile earthquakes

M4.5 earthquake 114 km NNE of Calama, Chile

A magnitude 4.5 earthquake struck 114 km NNE of Calama, Chile on Fri, Jul 29, 1983, 10:59 PM GMT-4 (02:59 UTC), 130 km (81 mi) below the surface.

A larger quake followed: M4.8 84 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
4.5 (mb), light
Local time
UTC
1983-07-30 02:59:06 UTC
Depth
129.6 km (80.5 mi), intermediate-depth
Epicenter
21.555° S, 68.380° 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
FROM_LOCATION

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.431 km NNE of Calama, Chile · 15764 days ago · 162 km deep · 83 km away
  2. 4.884 km NNE of Calama, Chile · 15758 days ago · 109 km deep · 40 km away
  3. 4.888 km NNE of Calama, Chile · 15752 days ago · 127 km deep · 27 km away
  4. 4.8Antofagasta, Chile · 15740 days ago · 127 km deep · 93 km away
  5. 4.3139 km NNE of Calama, Chile · 15728 days ago · 143 km deep · 45 km away
  6. 4.5137 km NNE of Calama, Chile · 15718 days ago · 95 km deep · 24 km away

Before

  1. 5.556 km ENE of Calama, Chile · 15776 days ago · 126 km deep · 71 km away
  2. 4.859 km NE of Calama, Chile · 15778 days ago · 130 km deep · 61 km away
  3. 4.4159 km NNE of Calama, Chile · 15787 days ago · 107 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001x71. Read Mon, Sep 28, 2026, 8:52 PM UTC.