M4.4 earthquake 42 km SE of Machalí, Chile
A magnitude 4.4 earthquake struck 42 km SE of Machalí, Chile on Wed, Aug 5, 1981, 8:09 PM GMT-4 (00:09 UTC), 105 km (65 mi) below the surface.
A larger quake followed: M4.9 52 km E of Machalí, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1981-08-06 00:09:24 UTC
- Depth
- 104.6 km (65.0 mi), intermediate-depth
- Epicenter
- 34.476° S, 70.352° 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.
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 1 in the 30 days before it.
After
- 4.952 km E of Machalí, Chile · 16468 days ago · 117 km deep · 47 km away
- 3.974 km ESE of Puente Alto, Chile · 16439 days ago · 144 km deep · 79 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001f4n. Read Tue, Sep 22, 2026, 8:03 AM UTC.