M4.6 earthquake 29 km SSW of Valparaíso, Chile
A magnitude 4.6 earthquake struck 29 km SSW of Valparaíso, Chile on Fri, Oct 22, 2021, 11:13 PM GMT-3 (02:13 UTC), 35 km (22 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-10-23 02:13:56 UTC
- Depth
- 35.3 km (21.9 mi), shallow
- Epicenter
- 33.271° S, 71.786° W
- Region
- Chile
- Felt reports
- 60
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
60 people reported to the USGS what they felt; the strongest reported shaking was VII, very strong shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 4.6 Mwr
- Nodal plane 1
- Strike 359°, dip 61°, rake 104°
- Nodal plane 2
- Strike 152°, dip 32°, rake 67°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.0 km horizontally, 3.8 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 58°
- Stations used
- 84
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000fwww. Read Sun, Oct 4, 2026, 3:16 PM UTC.