Chile earthquakes

M4.3 earthquake 87 km W of Iquique, Chile

A magnitude 4.3 earthquake struck 87 km W of Iquique, Chile on Sat, Dec 28, 1985, 10:44 AM GMT-3 (13:44 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.1 120 km W of Iquique, Chile. This one was a foreshock.

Iquique 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
4.3 (mb), light
Local time
UTC
1985-12-28 13:44:07 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
20.126° S, 70.983° 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
OPERATOR_ASSIGNED

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 3 in the 30 days before it.

After

  1. 4.572 km W of Iquique, Chile · 14879 days ago · 51 km deep · 16 km away
  2. 5.1120 km W of Iquique, Chile · 14866 days ago · 33 km deep · 33 km away
  3. 4.777 km WNW of Iquique, Chile · 14861 days ago · 33 km deep · 20 km away
  4. 4.863 km NW of Iquique, Chile · 14861 days ago · 33 km deep · 52 km away
  5. 4.8104 km WNW of Iquique, Chile · 14828 days ago · 33 km deep · 22 km away

Before

  1. 5.263 km NW of Iquique, Chile · 14880 days ago · 24 km deep · 46 km away
  2. 4.773 km W of Iquique, Chile · 14881 days ago · 62 km deep · 14 km away
  3. 4.955 km N of Iquique, Chile · 14901 days ago · 100 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002ph9. Read Thu, Sep 24, 2026, 10:34 AM UTC.