M4.2 earthquake 20 km W of Rauco, Chile
A magnitude 4.2 earthquake struck 20 km W of Rauco, Chile on Tue, Sep 20, 2011, 8:26 PM GMT-3 (23:26 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M5.3 68 km SSW of San Antonio, 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 (M), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2011-09-20 23:26:09 UTC
- Depth
- 61.1 km (38.0 mi), shallow
- Epicenter
- 34.945° S, 71.543° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (V) at Hualane; (IV) at Chepica, Chimbarongo, Lolol, Paredones, Rancagua, San Fernando and Santa Cruz; (III) at Curico, Machali, Molina, Mostazal, Pencahue, Pichilemu, Rio Claro and Talca; (II) at Colbun, Constitucion, Duao, Iloca, Melipilla and Romeral.
From the USGS event page for usp000j8be. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Station coverage gap
- 195°, poorly surrounded by stations
- Stations used
- 10
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 1 in the 30 days before it.
After
- 4.55 km ENE of Linares, Chile · 5474 days ago · 100 km deep · 98 km away
- 4.733 km NNW of Constitución, Chile · 5470 days ago · 20 km deep · 98 km away
- 4.691 km WNW of Santa Cruz, Chile · 5450 days ago · 21 km deep · 98 km away
- 5.368 km SSW of San Antonio, Chile · 5445 days ago · 16 km deep · 97 km away · felt by 47
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000j8be. Read Mon, Oct 5, 2026, 11:56 AM UTC.