M4.0 earthquake 80 km WNW of Illapel, Chile
A magnitude 4.0 earthquake struck 80 km WNW of Illapel, Chile on Mon, Nov 1, 2021, 10:43 AM GMT-3 (13:43 UTC), 12 km (7 mi) below the surface.
A larger quake followed: M4.5 19 km SW of Ovalle, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (ML, local (Richter)), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-11-01 13:43:45 UTC
- Depth
- 11.7 km (7.3 mi), shallow
- Epicenter
- 31.329° S, 71.933° W
- Region
- Chile
- Felt reports
- 4
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
4 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.7 km horizontally, 7.4 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 194°, poorly surrounded by stations
- Stations used
- 26
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 7 in the 30 days before it.
After
- 4.449 km SW of Illapel, Chile · 1775 days ago · 44 km deep · 77 km away · felt by 1
- 4.519 km SW of Ovalle, Chile · 1748 days ago · 41 km deep · 88 km away · felt by 1
Before
- 4.280 km W of Illapel, Chile · 1812 days ago · 20 km deep · 37 km away · felt by 5
- 3.983 km W of Illapel, Chile · 1814 days ago · 16 km deep · 40 km away
- 4.483 km W of Illapel, Chile · 1814 days ago · 10 km deep · 43 km away · felt by 1
- 4.178 km W of Illapel, Chile · 1815 days ago · 18 km deep · 40 km away
- 4.389 km W of Illapel, Chile · 1816 days ago · 10 km deep · 43 km away · felt by 2
- 4.089 km W of Illapel, Chile · 1826 days ago · 18 km deep · 45 km away
- 4.689 km W of Illapel, Chile · 1826 days ago · 17 km deep · 43 km away · felt by 8
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000fqhy. Read Sun, Oct 4, 2026, 10:59 PM UTC.