M4.5 earthquake 28 km ENE of Machalí, Chile
A magnitude 4.5 earthquake struck 28 km ENE of Machalí, Chile on Sat, Oct 18, 1980, 4:26 PM GMT-3 (19:26 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 Chile-Argentina 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
- 4.5 (mb), light
- Local time
- UTC
- 1980-10-18 19:26:51 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 34.058° S, 70.384° 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.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 7
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 usp0001aap. Read Wed, Sep 30, 2026, 6:49 AM UTC.