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Light mag. 4.0 earthquake - 40 km west of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Sunday, Oct 24, 2021 at 2:10 am (GMT -3) -

Light mag. 4.0 earthquake - 40 km west of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Sunday, Oct 24, 2021 at 2:10 am (GMT -3) Light mag. 4.0 earthquake - 40 km west of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Sunday, Oct 24, 2021 at 2:10 am (GMT -3)

Light magnitude 4.0 earthquake at 109 km depth

24 Oct 05:16 UTC: First to report: INPRES after 6 minutes.
24 Oct 11:18: Magnitude recalculated from 3.9 to 4.0. Hypocenter depth recalculated from 102.0 to 109.0 km (from 63 to 68 mi). Epicenter location corrected by 5.3 km (3.3 mi) towards NW.
Date & time: Oct 24, 2021 05:10:06 UTC -
Local time at epicenter: Sunday, Oct 24, 2021 at 2:10 am (GMT -3)
Magnitude: 4
Depth: 109.0 km
Epicenter latitude / longitude: 31.4°S / 68.924°W (Departamento de Ullum, San Juan, Argentina)
Antipode: 31.4°N / 111.076°E
Nearest volcano: Tupungatito (236 km / 147 mi)
Nearby towns and cities:
25 km (15 mi) NW of Villa Basilio Nievas (pop: 4,040) --> See nearby quakes!
38 km (24 mi) WNW of Villa Paula de Sarmiento (pop: 19,100) --> See nearby quakes!
38 km (24 mi) W of Albardon (pop: 20,400) --> See nearby quakes!
38 km (24 mi) WNW of Chimbas (pop: 73,800) --> See nearby quakes!
40 km (25 mi) WNW of Ciudad de San Juan (pop: 447,000) --> See nearby quakes!
44 km (27 mi) WNW of Santa Lucia (pop: 43,600) --> See nearby quakes!
45 km (28 mi) NW of Pocito (pop: 41,000) --> See nearby quakes!
67 km (42 mi) WNW of Caucete (pop: 33,600) --> See nearby quakes!
166 km (103 mi) N of Mendoza (pop: 876,900) --> See nearby quakes!
280 km (174 mi) NE of Santiago de Chile (Metropolitana, Chile) (pop: 4,837,300) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 10.8°C (51 F), humidity: 34%, wind: 1 m/s (2 kts) from N
Primary data source: INPRES
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | about seismic energy
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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.
4.0109 kmSAN JUAN (Argentina)INPRES
4.0148 km26 Km ESE of Calingasta, ArgentinaUSGS
4.5147 kmSan Juan Province, ArgentinaGFZ

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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