Light mag. 4.1 earthquake - South Pacific Ocean, 151 km west of Valdivia, Los Rios Region, Chile, on Monday, 28 Dec 2020 3:51 am (GMT -5) -
This quake was likely an aftershock of the 6.7 quake South Pacific Ocean, 145 km west of Valdivia, Los Rios Region, Chile, 27 Dec 2020 4:39 pm (GMT -5), which had occurred 11 hours earlier.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in Chile| Los Rios Region | Araucania | Los Lagos Region | Region del Biobio | Santiago Metropolitan

Light magnitude 4.1 earthquake at 20 km depth
28 Dec 09:03 UTC: First to report: EMSC after 12 minutes.
28 Dec 09:08: Now using data updates from GUG (U. Chile)
28 Dec 11:58: Magnitude recalculated from 3.5 to 3.7. Hypocenter depth recalculated from 15.0 to 19.9 km (from 9.3 to 12.4 mi). Epicenter location corrected by 3.9 km (2.4 mi) towards NNE.
28 Dec 12:14: Magnitude recalculated from 3.7 to 4.1.
28 Dec 09:08: Now using data updates from GUG (U. Chile)
28 Dec 11:58: Magnitude recalculated from 3.5 to 3.7. Hypocenter depth recalculated from 15.0 to 19.9 km (from 9.3 to 12.4 mi). Epicenter location corrected by 3.9 km (2.4 mi) towards NNE.
28 Dec 12:14: Magnitude recalculated from 3.7 to 4.1.
Date & time: 28 Dec 2020 08:51:19 UTC -
Local time at epicenter: Monday, 28 Dec 2020 3:51 am (GMT -5)
Magnitude: 4.1
Depth: 19.9 km
Epicenter latitude / longitude: 39.497°S / 74.963°W

Nearby towns and cities:
130 km (81 mi) WNW of Vuelta de la Zorra (pop: 50) --> See nearby quakes!
151 km (94 mi) WNW of Valdivia (pop: 133,400) --> See nearby quakes!
153 km (95 mi) WNW of Las Animas (pop: 30,000) --> See nearby quakes!
183 km (114 mi) WNW of La Union (Ranco) (pop: 26,300) --> See nearby quakes!
193 km (120 mi) WSW of Nueva Imperial (Cautín) (pop: 18,800) --> See nearby quakes!
197 km (122 mi) NW of Osorno (pop: 135,800) --> See nearby quakes!
221 km (137 mi) WSW of Temuco (pop: 238,100) --> See nearby quakes!
278 km (173 mi) NW of Port Montt (pop: 160,100) --> See nearby quakes!
348 km (216 mi) SSW of Talcahuano (pop: 253,000) --> See nearby quakes!
775 km (481 mi) SSW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
16.2°C (61 F), humidity: 93%, wind: 2 m/s (5 kts) from WNW
Primary data source: GUG (U. Chile)Clear Sky

Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Magnitude | Depth | Location | Source |
M 4.1 | 20 km | 151 Km Al O De Valdivia, Chile | GUG (U. Chile) |
M 3.5 | 15 km | OFF COAST OF LOS LAGOS, CHILE | EMSC |
User reports for this quake (1)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
254.4 km E of epicenter [Map] / Severe shaking (MMI VIII) (reported through our app)
Earlier earthquakes in the same area since 1900
- Date / time UTC| Mag |Depth|Age|Distance| Details
- 22 May 1960 19:11| 9.5 |25km / 16mi|61 years ago|202km / 126mi| Arauco, 38 km S of Kanyete, Provincia de Arauco, Region del Biobio, Chile
- 21 May 1960 10:02| 8.1 |25km / 16mi|61 years ago|233km / 145mi| 4.6 km SE of Kanyete, Provincia de Arauco, Region del Biobio, Chile
- 22 May 1960 18:56| 7.8 |25km / 16mi|61 years ago|231km / 144mi| Malleco Province, 41 km SW of Angol, Provincia de Malleco, Araucania, Chile
- 10 May 1975 14:27| 7.7 |6km / 3.7mi|46 years ago|209km / 130mi| Arauco, Region del Biobio, 83 km NW of Temuco, Provincia de Cautin, Araucania, Chile
- 27 Feb 2010 08:01| 7.4 |35km / 22mi|11 years ago|192km / 119mi| South Pacific Ocean, 124 km W of Lebu, Provincia de Arauco, Region del Biobio, Chile
- 01 Nov 1960 08:45| 7.4 |20km / 12.4mi|60 years ago|115km / 71mi| South Pacific Ocean, 214 km W of Temuco, Provincia de Cautin, Araucania, Chile
- 02 Jan 2011 20:20| 7.2 |24km / 15mi|10 years ago|190km / 118mi| Malleco, Araucanía, 42 km N of Carahue, Provincia de Cautin, Araucania, Chile
- 18 Aug 1974 10:44| 7.1 |36km / 22mi|47 years ago|176km / 109mi| Cautín Province, Region del Biobio, 79 km NW of Temuco, Provincia de Cautin, Araucania, Chile
- 20 Jun 1960 02:01| 7.0 |25km / 16mi|61 years ago|232km / 144mi| Malleco, 24 km NW of Traiguén, Provincia de Malleco, Araucania, Chile
- 27 Dec 2020 21:39| 6.7 |27km / 16mi|10 weeks ago|22km / 14mi| South Pacific Ocean, 145 km W of Valdivia, Los Rios Region, Chile
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