Chile earthquakes

M4.7 earthquake 47 km SW of Valparaíso, Chile

A magnitude 4.7 earthquake struck 47 km SW of Valparaíso, Chile on Sun, Jul 27, 1986, 11:29 PM GMT-4 (03:29 UTC), 41 km (25 mi) below the surface.

A larger quake followed: M5.7 39 km SW of Valparaíso, Chile. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.7 (Ms, surface-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-07-28 03:29:56 UTC
Depth
40.7 km (25.3 mi), shallow
Epicenter
33.276° S, 72.045° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

Felt (III) at Santiago.

From the USGS event page for usp0002wm7. U.S. Geological Survey text and figures are in the public domain.

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 1.7 and up: 9 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.184 km W of Valparaíso, Chile · 14677 days ago · 33 km deep · 60 km away
  2. 5.739 km SW of Valparaíso, Chile · 14677 days ago · 41 km deep · 10 km away
  3. 5.147 km NW of Cartagena, Chile · 14677 days ago · 45 km deep · 4 km away
  4. 4.348 km W of San Antonio, Chile · 14677 days ago · 33 km deep · 38 km away
  5. 4.376 km W of Cartagena, Chile · 14676 days ago · 33 km deep · 38 km away
  6. 4.169 km W of Cartagena, Chile · 14676 days ago · 12 km deep · 38 km away
  7. 4.364 km W of San Antonio, Chile · 14644 days ago · 33 km deep · 43 km away
  8. 4.257 km SSW of San Antonio, Chile · 14629 days ago · 33 km deep · 84 km away
  9. 4.065 km WNW of Cartagena, Chile · 14626 days ago · 33 km deep · 30 km away

Before

  1. 5.140 km WSW of San Antonio, Chile · 14684 days ago · 46 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002wm7. Read Sat, Oct 3, 2026, 12:50 PM UTC.