M4.2 earthquake 50 km ENE of Palca, Peru
A magnitude 4.2 earthquake struck 50 km ENE of Palca, Peru on Mon, Sep 30, 1974, 3:39 PM GMT-5 (20:39 UTC), 153 km (95 mi) below the surface.
A larger quake followed: M4.3 66 km S of Desaguadero, Peru. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 1974-09-30 20:39:11 UTC
- Depth
- 153.0 km (95.1 mi), intermediate-depth
- Epicenter
- 17.587° S, 69.525° 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.
- Stations used
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayPeru earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000087m. Read Tue, Sep 22, 2026, 9:28 PM UTC.