M4.5 earthquake 41 km SSW of San Alejandro, Peru
A magnitude 4.5 earthquake struck 41 km SSW of San Alejandro, Peru on Thu, Apr 21, 1983, 2:40 PM GMT-5 (19:40 UTC), 108 km (67 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1983-04-21 19:40:55 UTC
- Depth
- 107.6 km (66.9 mi), intermediate-depth
- Epicenter
- 9.172° S, 75.362° 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
- 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: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001un5. Read Tue, Sep 22, 2026, 9:30 PM UTC.