M4.4 earthquake 79 km W of Vallenar, Chile
A magnitude 4.4 earthquake struck 79 km W of Vallenar, Chile on Sat, Sep 18, 2021, 9:35 AM GMT-3 (12:35 UTC), 20 km (12 mi) below the surface.
A larger quake followed: M4.6 75 km SSW of Vallenar, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-09-18 12:35:38 UTC
- Depth
- 19.9 km (12.4 mi), shallow
- Epicenter
- 28.690° S, 71.564° 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.
- Location uncertainty
- About 6.4 km horizontally, 4.6 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 144°
- Stations used
- 42
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.484 km NW of Coquimbo, Chile · 1817 days ago · 10 km deep · 87 km away
- 4.562 km W of Vallenar, Chile · 1793 days ago · 42 km deep · 18 km away · felt by 1
- 4.675 km SSW of Vallenar, Chile · 1790 days ago · 78 km deep · 73 km away · felt by 7
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000fce2. Read Sat, Oct 3, 2026, 3:59 PM UTC.