Light mag. 4.4 earthquake - Choapa, Coquimbo Region, 34 km northwest of La Ligua, Petorca Province, Valparaiso, Chile, on Friday, 25 Dec 2020 4:01 am (GMT -3) -

Light mag. 4.4 earthquake - Choapa, Coquimbo Region, 34 km northwest of La Ligua, Petorca Province, Valparaiso, Chile, on Friday, 25 Dec 2020 4:01 am (GMT -3)

Light magnitude 4.4 earthquake at 52 km depth

25 Dec 07:16 UTC: First to report: USGS after 15 minutes.
25 Dec 07:22: Now using data updates from GUG (U. Chile)
Update Fri, 25 Dec 2020, 07:21
Light magnitude 4.7 earthquake 42 km northwest of La Ligua, Chile
4.7 quake 25 Dec 4:01 am (GMT -3)
4.7 quake 25 Dec 4:01 am (GMT -3)
Just 20 minutes ago, a 4.7-magnitude earthquake struck near La Ligua, Petorca Province, Region de Valparaiso, Chile. The tremor was recorded early morning on Friday 25 December 2020 at 4:01 am local time, at a moderately shallow depth of 42.3 km below the surface.
The event was filed by the United States Geological Survey (USGS), the first seismological agency to report it.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.7 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in La Ligua (pop. 24,900) located 42 km from the epicenter, and Illapel (pop. 22,800) 67 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Hacienda La Calera (pop. 49,100) located 74 km from the epicenter, Quillota (pop. 67,800) 84 km away, Viña del Mar (pop. 294,600) 96 km away, Valparaiso (pop. 282,400) 98 km away, Quilpué (pop. 130,300) 98 km away, and Villa Alemana (pop. 97,300) 98 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake data:

Date & time: 25 Dec 2020 07:01:30 UTC -
Local time at epicenter: Friday, 25 Dec 2020 4:01 am (GMT -3)
Magnitude: 4.4
Depth: 51.5 km
Epicenter latitude / longitude: 32.181°S / 71.408°W (Choapa, Coquimbo Region, Chile)
Nearest volcano: Tupungatito (202 km / 126 mi)
Nearby towns and cities:
34 km (21 mi) NNW of La Ligua (Petorca, Valparaíso) (pop: 24,900) --> See nearby quakes!
65 km (40 mi) SSW of Illapel (Choapa, Coquimbo Region) (pop: 22,800) --> See nearby quakes!
69 km (43 mi) NNW of Hacienda La Calera (Valparaíso) (pop: 49,100) --> See nearby quakes!
80 km (49 mi) N of Quillota (Valparaíso) (pop: 67,800) --> See nearby quakes!
95 km (59 mi) N of Viña del Mar (Valparaíso) (pop: 294,600) --> See nearby quakes!
96 km (60 mi) N of Villa Alemana (Valparaíso) (pop: 97,300) --> See nearby quakes!
96 km (60 mi) N of Quilpué (Valparaíso) (pop: 130,300) --> See nearby quakes!
159 km (99 mi) NNW of Santiago de Chile (Santiago Metropolitan) (pop: 4,837,300) --> See nearby quakes!
177 km (110 mi) NNW of Puente Alto (Santiago Metropolitan) (pop: 510,400) --> See nearby quakes!
254 km (158 mi) S of La Serena (Coquimbo Region) (pop: 154,500) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 11.3°C (52 F), humidity: 92%, wind: 1 m/s (2 kts) from NNW
Primary data source: GUG (U. Chile)
Estimated released energy: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 4.452 km31 Km Al S De Los Vilos, ChileGUG (U. Chile)
M 4.755 kmVALPARAISO, CHILEEMSC
M 4.742 km41 Km NW of La Ligua, ChileUSGS
M 4.653 kmNear Coast of Central ChileGFZ
M 4.210 kmOff Coast of Central ChileUSP
M 4.742 km41 Km NW of La Ligua, ChileUSGS

User reports for this quake (5)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Lo espejo Santiago Venus (163.6 km SSE of epicenter) [Map] / not felt / very short (reported through our app)
68 km S of epicenter [Map] / Light shaking (MMI IV) / 10-15 s (reported through our app)
Viña del Mar, canal Beagle (96 km S of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s (reported through our app)
Tinogasta (612 km NE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump
147.6 km SSE of epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : El sismo fue bstante leve, vibratorio y con algo de ruido (reported through our app)
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