M4.2 earthquake 59 km WNW of La Ligua, Chile
A magnitude 4.2 earthquake struck 59 km WNW of La Ligua, Chile on Tue, Oct 6, 2020, 2:16 AM GMT-3 (05:16 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M4.7 36 km WSW of Illapel, 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 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-10-06 05:16:25 UTC
- Depth
- 19.5 km (12.1 mi), shallow
- Epicenter
- 32.268° S, 71.827° 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.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique reverse
- Moment magnitude
- 4.2 Mwr
- Nodal plane 1
- Strike 58°, dip 79°, rake 144°
- Nodal plane 2
- Strike 156°, dip 55°, rake 14°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.6 km horizontally, 3.9 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 133°
- Stations used
- 53
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.436 km NNW of Viña del Mar, Chile · 2186 days ago · 34 km deep · 52 km away · felt by 15
- 3.851 km WNW of Valparaíso, Chile · 2160 days ago · 10 km deep · 69 km away
- 4.736 km WSW of Illapel, Chile · 2149 days ago · 47 km deep · 63 km away · felt by 5
- 4.223 km W of La Ligua, Chile · 2146 days ago · 68 km deep · 38 km away · felt by 4
- 4.356 km W of La Ligua, Chile · 2140 days ago · 22 km deep · 24 km away · felt by 2
- 4.122 km SW of Illapel, Chile · 2137 days ago · 44 km deep · 72 km away · felt by 1
Before
- 4.840 km W of Valparaíso, Chile · 2195 days ago · 18 km deep · 85 km away · felt by 12
- 4.3114 km W of Illapel, Chile · 2201 days ago · 11 km deep · 73 km away
- 4.360 km WNW of Illapel, Chile · 2207 days ago · 56 km deep · 88 km away · felt by 1
- 4.150 km WSW of Illapel, Chile · 2217 days ago · 62 km deep · 52 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000c5zh. Read Fri, Oct 2, 2026, 4:53 PM UTC.