Peru earthquakes

M4.8 earthquake 101 km WSW of Chilca, Peru

A magnitude 4.8 earthquake struck 101 km WSW of Chilca, Peru on Thu, Oct 10, 1974, 3:57 PM GMT-5 (20:57 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.9 96 km WSW of Callao, Peru. This one was a foreshock.

Mala forecast More in Peru

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

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The earthquake

Magnitude: 4.8 (mb), light
Local time: Thu, Oct 10, 1974, 3:57 PM GMT-5
UTC: 1974-10-10 20:57:47 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 12.994° S, 77.543° W
Region: Peru
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
Stations used: 25

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 8 in the 60 days after this one and 20 in the 30 days before it.

After

Before

Earthquakes today Peru earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00008bs (also filed as iscgemsup736315). Read Tue, Sep 22, 2026, 4:29 AM UTC.