M4.6 earthquake 37 km SW of Llacllin, Peru
A magnitude 4.6 earthquake struck 37 km SW of Llacllin, Peru on Thu, Jul 16, 1981, 12:27 AM GMT-5 (05:27 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.9 55 km WSW of Végueta, Peru. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1981-07-16 05:27:59 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 10.306° S, 77.869° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayPeru earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001er7. Read Tue, Sep 22, 2026, 4:16 AM UTC.