Light mag. 4.2 earthquake - 9.6 km northeast of San Antonio, Valparaiso, Chile, on Friday, 12 Feb 2021 6:43 am (GMT -3) -

Light mag. 4.2 earthquake - 9.6 km northeast of San Antonio, Valparaiso, Chile, on Friday, 12 Feb 2021 6:43 am (GMT -3)

Light magnitude 4.2 earthquake at 49 km depth

12 Feb 09:46 UTC: First to report: VolcanoDiscovery after 3 minutes.
12 Feb 10:22: Hypocenter depth recalculated from 47.3 to 48.9 km (from 29 to 30 mi). Epicenter location corrected by 1.2 km (0.8 mi) towards SW.
Date & time: 12 Feb 2021 09:43:28 UTC -
Local time at epicenter: Friday, 12 Feb 2021 6:43 am (GMT -3)
Magnitude: 4.2
Depth: 48.9 km
Epicenter latitude / longitude: 33.539°S / 71.528°W (San Antonio Province, Valparaiso, Chile)
Nearest volcano: San José (153 km / 95 mi)
Nearby towns and cities:
8 km (5 mi) ENE of Cartagena (San Antonio) (pop: 16,900) --> See nearby quakes!
10 km (6 mi) NE of San Antonio (pop: 85,700) --> See nearby quakes!
33 km (21 mi) WNW of Melipilla (Santiago Metropolitan) (pop: 63,100) --> See nearby quakes!
55 km (34 mi) S of Quilpué (pop: 130,300) --> See nearby quakes!
57 km (35 mi) S of Valparaiso (pop: 282,400) --> See nearby quakes!
57 km (35 mi) SSW of Villa Alemana (pop: 97,300) --> See nearby quakes!
57 km (36 mi) S of Viña del Mar (pop: 294,600) --> See nearby quakes!
63 km (39 mi) SSW of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
82 km (51 mi) W of Santiago de Chile (Santiago Metropolitan) (pop: 4,837,300) --> See nearby quakes!
89 km (55 mi) W of Puente Alto (Santiago Metropolitan) (pop: 510,400) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 17°C (63 F), humidity: 94%, wind: 1 m/s (2 kts)
Primary data source: GUG (U. Chile)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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
unspecifiedn/aChileVolcanoDiscovery
4.249 km7 Km Al E De Cartagena, ChileGUG (U. Chile)
4.343 kmVALPARAISO, CHILEEMSC
4.343 km6 Km ENE of Cartagena, ChileUSGS

User reports for this quake (14)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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73.5 km ENE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
16.7 km SSW of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
76.2 km E of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
El quisco (3.5 km N of epicenter) [Map] / Very weak shaking (MMI II)
23.1 km NW of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
La Cisterna (78.8 km E of epicenter) [Map] / Light shaking (MMI IV)
239.4 km N of epicenter [Map] / Weak shaking (MMI III)
53.6 km ENE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Santiago / Light shaking (MMI IV)
El quisco / Moderate shaking (MMI V)
Santiago, chile / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
Santiago de Chile / Weak shaking (MMI III) / 5-10 s
Santiago de chile / Light shaking (MMI IV) / 5-10 s : mucho riudo  
El tabo / Light shaking (MMI IV) / horizontal (sideways) swinging / 10-15 s
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Earlier earthquakes in the same area since 1900


Map of earlier quakes

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