M4.2 earthquake 39 km ESE of Vallenar, Chile
A magnitude 4.2 earthquake struck 39 km ESE of Vallenar, Chile on Sun, May 23, 2021, 9:23 AM GMT-4 (13:23 UTC), 86 km (54 mi) below the surface.
A larger quake followed: M4.4 67 km E 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-05-23 13:23:10 UTC
- Depth
- 86.3 km (53.6 mi), intermediate-depth
- Epicenter
- 28.676° S, 70.370° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.5 km horizontally, 4.4 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
- Station coverage gap
- 86°
- Stations used
- 31
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 0 in the 30 days before it.
After
- 4.353 km N of Vallenar, Chile · 1943 days ago · 50 km deep · 76 km away · felt by 1
- 4.467 km E of Vallenar, Chile · 1932 days ago · 116 km deep · 31 km away
- 4.198 km ESE of Vallenar, Chile · 1914 days ago · 130 km deep · 61 km away · felt by 1
- 4.260 km WSW of Vallenar, Chile · 1909 days ago · 37 km deep · 94 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e5ic. Read Mon, Oct 5, 2026, 6:36 AM UTC.