M3.9 earthquake 129 km NE of Iquique, Chile
A magnitude 3.9 earthquake struck 129 km NE of Iquique, Chile on Tue, Sep 30, 1975, 8:15 AM GMT-4 (12:15 UTC), 133 km (83 mi) below the surface.
A larger quake followed: M4.5 142 km ENE of Iquique, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1975-09-30 12:15:08 UTC
- Depth
- 133.0 km (82.6 mi), intermediate-depth
- Epicenter
- 19.354° S, 69.306° 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
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 usp0000d0d. Read Wed, Sep 30, 2026, 12:27 PM UTC.