M4.8 earthquake 55 km E of Arica, Chile
A magnitude 4.8 earthquake struck 55 km E of Arica, Chile on Sat, Aug 31, 1974, 7:36 AM GMT-4 (11:36 UTC), 128 km (80 mi) below the surface.
A larger quake followed: M5.2 96 km SE of Arica, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1974-08-31 11:36:49 UTC
- Depth
- 128.0 km (79.5 mi), intermediate-depth
- Epicenter
- 18.488° S, 69.770° W
- Region
- Chile
- 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
- 26
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.296 km SE of Arica, Chile · 19004 days ago · 113 km deep · 62 km away
- 4.185 km SW of Curahuara de Carangas, Bolivia · 18981 days ago · 164 km deep · 84 km away
- 3.677 km SE of Palca, Peru · 18976 days ago · 146 km deep · 46 km away
- 4.5130 km ESE of Arica, Chile · 18958 days ago · 136 km deep · 80 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007vt. Read Tue, Sep 22, 2026, 8:02 AM UTC.