M4.9 earthquake 56 km ENE of Estique, Peru
A magnitude 4.9 earthquake struck 56 km ENE of Estique, Peru on Tue, Oct 9, 1973, 2:41 AM GMT-5 (07:41 UTC), 176 km (109 mi) below the surface.
A larger quake followed: M5.2 Peru-Bolivia border region. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1973-10-09 07:41:44 UTC
- Depth
- 176.0 km (109.4 mi), intermediate-depth
- Epicenter
- 17.440° S, 69.500° 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
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.965 km E of Palca, Peru · 19331 days ago · 169 km deep · 42 km away
- 4.729 km SE of Palca, Peru · 19328 days ago · 105 km deep · 69 km away
- 5.2Peru-Bolivia border region · 19288 days ago · 142 km deep · 40 km away
Before
Earthquakes todayPeru earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00003rw. Read Tue, Sep 22, 2026, 11:35 AM UTC.