M4.3 earthquake 49 km N of Vallenar, Chile
A magnitude 4.3 earthquake struck 49 km N of Vallenar, Chile on Tue, Aug 31, 2021, 3:52 AM GMT-4 (07:52 UTC), 70 km (43 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
- 2021-08-31 07:52:42 UTC
- Depth
- 69.8 km (43.4 mi), shallow
- Epicenter
- 28.130° S, 70.798° 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 5.3 km horizontally, 5.5 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 76°
- Stations used
- 48
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.686 km WSW of Copiapó, Chile · 1859 days ago · 28 km deep · 54 km away · felt by 22
- 4.479 km W of Vallenar, Chile · 1842 days ago · 20 km deep · 97 km away
- 4.558 km WSW of Copiapó, Chile · 1824 days ago · 35 km deep · 69 km away
- 4.226 km WNW of Copiapó, Chile · 1819 days ago · 62 km deep · 93 km away · felt by 2
- 4.370 km WSW of Copiapó, Chile · 1816 days ago · 35 km deep · 65 km away
- 3.986 km WSW of Copiapó, Chile · 1816 days ago · 28 km deep · 45 km away
- 4.292 km WSW of Copiapó, Chile · 1811 days ago · 20 km deep · 64 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000f648. Read Sun, Oct 4, 2026, 10:48 PM UTC.