M4.5 earthquake 55 km WNW of La Ligua, Chile
A magnitude 4.5 earthquake struck 55 km WNW of La Ligua, Chile on Sat, Dec 12, 2020, 4:13 AM GMT-3 (07:13 UTC), 21 km (13 mi) below the surface.
A larger quake followed: M4.6 38 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
- 4.5 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-12-12 07:13:10 UTC
- Depth
- 20.9 km (13.0 mi), shallow
- Epicenter
- 32.282° S, 71.790° W
- Region
- Chile
- Felt reports
- 3
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
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
- 4.5 Mwr
- Nodal plane 1
- Strike 8°, dip 45°, rake 130°
- Nodal plane 2
- Strike 138°, dip 57°, rake 57°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.3 km horizontally, 4.3 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 75°
- Stations used
- 74
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.050 km NNW of Valparaíso, Chile · 2118 days ago · 35 km deep · 38 km away
- 4.341 km WNW of Valparaíso, Chile · 2117 days ago · 10 km deep · 67 km away
- 4.540 km WNW of Valparaíso, Chile · 2117 days ago · 14 km deep · 66 km away · felt by 1
- 3.91 km S of Limache, Chile · 2115 days ago · 58 km deep · 97 km away · felt by 1
- 4.146 km WNW of La Ligua, Chile · 2111 days ago · 35 km deep · 9 km away
- 4.442 km NW of La Ligua, Chile · 2108 days ago · 47 km deep · 29 km away · felt by 1
- 4.490 km WNW of La Ligua, Chile · 2103 days ago · 10 km deep · 38 km away
- 4.355 km W of Valparaíso, Chile · 2097 days ago · 10 km deep · 94 km away
- 4.443 km WSW of Illapel, Chile · 2095 days ago · 29 km deep · 54 km away
- 4.638 km WSW of Illapel, Chile · 2085 days ago · 49 km deep · 58 km away · felt by 2
- 4.250 km WNW of La Ligua, Chile · 2073 days ago · 57 km deep · 7 km away · felt by 1
Before
- 4.164 km NW of La Ligua, Chile · 2124 days ago · 35 km deep · 28 km away · felt by 3
- 5.050 km NNW of La Ligua, Chile · 2125 days ago · 44 km deep · 36 km away · felt by 33
- 4.19 km E of Quillota, Chile · 2126 days ago · 67 km deep · 91 km away · felt by 10
- 4.122 km SW of Illapel, Chile · 2137 days ago · 44 km deep · 71 km away · felt by 1
- 4.356 km W of La Ligua, Chile · 2141 days ago · 22 km deep · 23 km away · felt by 2
- 4.223 km W of La Ligua, Chile · 2147 days ago · 68 km deep · 34 km away · felt by 4
- 4.736 km WSW of Illapel, Chile · 2150 days ago · 47 km deep · 63 km away · felt by 5
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000cqhr. Read Sat, Oct 3, 2026, 12:47 PM UTC.