M4.3 earthquake 76 km NW of Vallenar, Chile
A magnitude 4.3 earthquake struck 76 km NW of Vallenar, Chile on Wed, Aug 11, 2021, 9:12 PM GMT-4 (01:12 UTC), 43 km (27 mi) below the surface.
A larger quake followed: M5.6 86 km WSW of Copiapó, 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
- 2021-08-12 01:12:07 UTC
- Depth
- 42.9 km (26.7 mi), shallow
- Epicenter
- 28.009° S, 71.196° 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 7.7 km horizontally, 10.1 km in depth
- Magnitude uncertainty
- ±0.38
- Depth from
- From location
- Station coverage gap
- 179°
- Stations used
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.349 km N of Vallenar, Chile · 1859 days ago · 70 km deep · 41 km away
- 5.686 km WSW of Copiapó, Chile · 1858 days ago · 28 km deep · 32 km away · felt by 22
- 4.479 km W of Vallenar, Chile · 1841 days ago · 20 km deep · 84 km away
- 4.558 km WSW of Copiapó, Chile · 1823 days ago · 35 km deep · 62 km away
Before
- 4.370 km WNW of Copiapó, Chile · 1885 days ago · 10 km deep · 98 km away
- 4.451 km SW of Vallenar, Chile · 1892 days ago · 70 km deep · 95 km away
- 4.4100 km W of Vallenar, Chile · 1896 days ago · 35 km deep · 97 km away
- 4.260 km WSW of Vallenar, Chile · 1908 days ago · 37 km deep · 88 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000f4d6. Read Sat, Oct 3, 2026, 3:59 PM UTC.