M4.5 earthquake 58 km WSW of Copiapó, Chile
A magnitude 4.5 earthquake struck 58 km WSW of Copiapó, Chile on Thu, Oct 7, 2021, 12:23 AM GMT-3 (03:23 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M4.8 89 km NNW 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-10-07 03:23:14 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 27.516° S, 70.901° 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 3.7 km horizontally, 1.6 km in depth
- Magnitude uncertainty
- ±0.31
- Depth from
- Operator assigned
- Station coverage gap
- 144°
- Stations used
- 24
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.226 km WNW of Copiapó, Chile · 1819 days ago · 62 km deep · 38 km away · felt by 2
- 4.370 km WSW of Copiapó, Chile · 1815 days ago · 35 km deep · 12 km away
- 3.986 km WSW of Copiapó, Chile · 1815 days ago · 28 km deep · 35 km away
- 4.292 km WSW of Copiapó, Chile · 1810 days ago · 20 km deep · 35 km away · felt by 1
- 4.889 km NNW of Vallenar, Chile · 1771 days ago · 33 km deep · 40 km away · felt by 6
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000fsic. Read Sun, Oct 4, 2026, 3:12 AM UTC.