Moderate mag. 5.3 earthquake - San Felipe de Aconcagua, 18 km east of Hacienda La Calera, Provincia de Quillota, Region de Valparaiso, Chile, on Tuesday, 20 October 2015 at 10:05 (GMT)

This quake was likely an aftershock of the 7.8 quake Choapa, 36 km west of Illapel, Provincia de Choapa, Coquimbo Region, Chile, 16 September 2015 22:54 GMT, which had occurred 5 weeks earlier.
Moderate mag. 5.3 earthquake - San Felipe de Aconcagua, 18 km east of Hacienda La Calera, Provincia de Quillota, Region de Valparaiso, Chile, on Tuesday, 20 October 2015 at 10:05 (GMT)

Moderate magnitude 5.3 earthquake at 10 km depth

20 Oct 10:20 UTC: First to report: GFZ after 14 minutes.
Oct 20 10:21: Magnitude recalculated from 5.2 to 5.3.
Date & time: 20 Oct 2015 10:05:56 UTC
Magnitude: 5.3
Depth: 10.0 km
Epicenter latitude / longitude: 32.73°S / 71.04°W (San Felipe de Aconcagua, Region de Valparaiso, Chile)
Nearest volcano: Tupungatito (137 km / 85 mi)
Nearby towns and cities:
15 km (9 mi) NNW of Llaillay (San Felipe de Aconcagua) (pop: 16,600) --> See nearby quakes!
18 km (11 mi) ENE of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
26 km (16 mi) NE of Quillota (pop: 67,800) --> See nearby quakes!
29 km (18 mi) W of San Felipe (pop: 59,300) --> See nearby quakes!
36 km (22 mi) SSE of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
38 km (24 mi) NNE of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
43 km (27 mi) WNW of Los Andes (pop: 56,900) --> See nearby quakes!
47 km (29 mi) NE of Villa Alemana (pop: 97,300) --> See nearby quakes!
89 km (55 mi) NNW of Santiago de Chile (Santiago Metropolitan) (pop: 4,837,300) --> See nearby quakes!
107 km (67 mi) NNW of Puente Alto (Santiago Metropolitan) (pop: 510,400) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 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 5.310 kmNear Coast of Central ChileGFZ
M 5.210 km5.2 VALPARAISO, CHILEEMSC
M 5.340 km COQUIMBO, CHILEEMSC

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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La Serena (Chile, 96 km N of epicenter) : Ruido al principio, movimiento en todas direcciones, duracion 30 segundos, temblor de magnitud moderada (reported through EMSC)
Ovalle (Chile, 32 km NE of epicenter) : Hard jolts (reported through EMSC)
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Earlier earthquakes in the same area

Moderate mag. 5.3 earthquake - San Felipe de Aconcagua, 18 km east of Hacienda La Calera, Provincia de Quillota, Region de Valparaiso, Chile, on Tuesday, 20 October 2015 at 10:05 (GMT)
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