M4.7 earthquake 56 km E of Palca, Peru
A magnitude 4.7 earthquake struck 56 km E of Palca, Peru on Sat, Aug 25, 1973, 8:23 PM GMT-5 (01:23 UTC), 169 km (105 mi) below the surface.
A larger quake followed: M4.9 56 km ENE of Estique, Peru. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1973-08-26 01:23:28 UTC
- Depth
- 169.0 km (105.0 mi), intermediate-depth
- Epicenter
- 17.862° S, 69.434° 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
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.618 km ESE of Estique, Peru · 19347 days ago · 153 km deep · 53 km away
- 4.956 km ENE of Estique, Peru · 19342 days ago · 176 km deep · 47 km away
- 3.965 km E of Palca, Peru · 19331 days ago · 169 km deep · 13 km away
- 4.729 km SE of Palca, Peru · 19329 days ago · 105 km deep · 42 km away
Before
Earthquakes todayPeru earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000037f. Read Tue, Sep 22, 2026, 7:58 PM UTC.