M4.0 earthquake 52 km W of Rauco, Chile
A magnitude 4.0 earthquake struck 52 km W of Rauco, Chile on Thu, May 20, 2021, 2:48 AM GMT-4 (06:48 UTC), 43 km (27 mi) below the surface.
A larger quake followed: M4.5 49 km WSW of Santa Cruz, 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 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-05-20 06:48:35 UTC
- Depth
- 43.4 km (27.0 mi), shallow
- Epicenter
- 34.902° S, 71.889° 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 6.0 km horizontally, 9.5 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 145°
- Stations used
- 37
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 2 in the 30 days before it.
After
- 4.220 km SW of Molina, Chile · 1920 days ago · 81 km deep · 56 km away · felt by 3
- 4.549 km WSW of Santa Cruz, Chile · 1913 days ago · 38 km deep · 18 km away · felt by 7
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e4nf. Read Sat, Oct 3, 2026, 9:58 PM UTC.