M4.3 earthquake 82 km SE of Arica, Chile
A magnitude 4.3 earthquake struck 82 km SE of Arica, Chile on Thu, May 4, 1978, 5:41 AM GMT-4 (09:41 UTC), 128 km (80 mi) below the surface.
A larger quake followed: M5.1 25 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1978-05-04 09:41:41 UTC
- Depth
- 128.0 km (79.5 mi), intermediate-depth
- Epicenter
- 18.973° S, 69.712° 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
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000ucy. Read Thu, Oct 1, 2026, 1:35 PM UTC.