Chile earthquakes

M4.4 earthquake 126 km N of Calama, Chile

A magnitude 4.4 earthquake struck 126 km N of Calama, Chile on Tue, Apr 21, 1987, 11:46 AM GMT-4 (15:46 UTC), 137 km (85 mi) below the surface.

A larger quake followed: M5.4 111 km NE 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
4.4 (mb), light
Local time
UTC
1987-04-21 15:46:23 UTC
Depth
137.0 km (85.1 mi), intermediate-depth
Epicenter
21.318° S, 68.902° 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: 5 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.3163 km NNE of Calama, Chile · 14395 days ago · 157 km deep · 47 km away
  2. 5.4111 km NE of Calama, Chile · 14380 days ago · 78 km deep · 82 km away
  3. 4.4127 km N of Calama, Chile · 14369 days ago · 126 km deep · 10 km away
  4. 4.6105 km NE of Calama, Chile · 14343 days ago · 33 km deep · 93 km away
  5. 5.7149 km NNE of Calama, Chile · 14341 days ago · 86 km deep · 57 km away

Before

  1. 4.6160 km N of Calama, Chile · 14402 days ago · 136 km deep · 42 km away
  2. 4.2163 km ESE of Iquique, Chile · 14413 days ago · 129 km deep · 58 km away
  3. 5.1127 km N of Calama, Chile · 14417 days ago · 194 km deep · 19 km away
  4. 4.8144 km NNE of Calama, Chile · 14427 days ago · 117 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00034bc. Read Thu, Sep 24, 2026, 5:59 AM UTC.