Moderate mag. 4.8 earthquake - 16 km southwest of Pocito, San Juan, Argentina, on Tuesday, 19 Jan 2021 12:37 am (GMT -3) -

This quake was likely an aftershock of the 6.4 quake Departamento de Sarmiento, 20 km southwest of Pocito, San Juan, Argentina, 18 Jan 2021 11:46 pm (GMT -3), which had occurred 51 minutes earlier.
Moderate mag. 4.8 earthquake - 16 km southwest of Pocito, San Juan, Argentina, on Tuesday, 19 Jan 2021 12:37 am (GMT -3)

Moderate magnitude 4.8 earthquake at 15 km depth

19 Jan 03:42 UTC: First to report: GFZ after 4 minutes.
19 Jan 03:44: Magnitude recalculated from 5.2 to 5.0. Epicenter location corrected by 10.4 km (6.5 mi) towards E.
19 Jan 08:04: Magnitude recalculated from 5.0 to 5.1. Hypocenter depth recalculated from 10.0 to 15.0 km (from 6.2 to 9.3 mi). Epicenter location corrected by 7.8 km (4.8 mi) towards N.
19 Jan 08:08: Magnitude recalculated from 5.1 to 4.8.
Date & time: 19 Jan 2021 03:37:45 UTC -
Local time at epicenter: Tuesday, 19 Jan 2021 12:37 am (GMT -3)
Magnitude: 4.8
Depth: 15.0 km
Epicenter latitude / longitude: 31.8°S / 68.68°W (Departamento de Pocito, San Juan, Argentina)
Nearest volcano: Tupungatito (200 km / 124 mi)
Nearby towns and cities:
16 km (10 mi) SW of Pocito (pop: 41,000) --> See nearby quakes!
31 km (19 mi) WSW of Nueve de Julio (pop: 7,650) --> See nearby quakes!
32 km (20 mi) SSW of San Juan (pop: 447,000) --> See nearby quakes!
34 km (21 mi) SSW of Santa Lucia (pop: 43,600) --> See nearby quakes!
37 km (23 mi) SSW of Villa Paula de Sarmiento (pop: 19,100) --> See nearby quakes!
38 km (24 mi) SSW of Chimbas (pop: 73,800) --> See nearby quakes!
41 km (26 mi) WSW of Caucete (pop: 33,600) --> See nearby quakes!
43 km (27 mi) SSW of Albardon (pop: 20,400) --> See nearby quakes!
122 km (76 mi) N of Mendoza (pop: 876,900) --> See nearby quakes!
261 km (162 mi) NE of Santiago de Chile (Santiago Metropolitan, Chile) (pop: 4,837,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 19.7°C (67 F), humidity: 32%, wind: 0 m/s (1 kts) from N
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1 x 1012 joules (278 megawatt hours, equivalent to 239 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.
M 4.815 kmSan Juan Province, ArgentinaGFZ
M 4.98 kmSAN JUAN (Argentina)INPRES
M 5.329 km18 Km SW of Pocito, ArgentinaUSGS
M 5.021 kmSan Juan Province, ArgentinaGeoAu
M 5.318 kmSan Juan Province, ArgentinaUSP

User reports for this quake (11)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Marcos juarez cordoba / Light shaking (MMI IV) / horizontal (sideways) swinging : Se movia a los lados el agua de la pileta. Muy notorio el movimiento hacia los lados. | One user found this interesting.
1004.1 km ESE of epicenter [Map] / Light shaking (MMI IV) / single lateral shake : Dizziness AND movement of hanging stuff. It felt like shaking on a 2nd floor
769.5 km E of epicenter [Map] / Weak shaking (MMI III)
965.2 km ESE of epicenter [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging
849 km NNE of epicenter [Map] / not felt (reported through our app)
Villa Carlos paz (398.7 km E of epicenter) [Map] / Light shaking (MMI IV)
33.1 km NNE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Lo Barnechea (245.1 km SW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 10-15 s
Buenos Aires / Light shaking (MMI IV) / rattling, vibrating
San Juan / Moderate shaking (MMI V) / 2-5 s
Los pozos Córdoba / Weak shaking (MMI III) / rattling, vibrating
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