Mag. 4.1 earthquake - South Pacific Ocean, 41 km west of Valparaiso, Region de Valparaiso, Chile, on Monday, 21 September 2015 at 21:17 (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 days earlier.
Mag. 4.1 earthquake - South Pacific Ocean, 41 km west of Valparaiso, Region de Valparaiso, Chile, on Monday, 21 September 2015 at 21:17 (GMT)

Light magnitude 4.1 earthquake at 20 km depth

21 Sep 22:18 UTC: First to report: GUG (U. Chile) after 1 hour and 1 minutes.
Date & time: 21 Sep 2015 21:17:09 UTC
Magnitude: 4.1
Depth: 20.1 km
Epicenter latitude / longitude: 33.072°S / 72.066°W (South Pacific Ocean, Chile)
Nearest volcano: Tupungatito (214 km / 133 mi)
Nearby towns and cities:
41 km (25 mi) W of Valparaiso (pop: 282,400) --> See nearby quakes!
48 km (30 mi) W of Viña del Mar (pop: 294,600) --> See nearby quakes!
58 km (36 mi) W of Quilpué (pop: 130,300) --> See nearby quakes!
65 km (40 mi) W of Villa Alemana (pop: 97,300) --> See nearby quakes!
68 km (43 mi) NW of Cartagena (San Antonio) (pop: 16,900) --> See nearby quakes!
72 km (45 mi) NW of San Antonio (pop: 85,700) --> See nearby quakes!
75 km (46 mi) W of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
79 km (49 mi) WSW of Quillota (pop: 67,800) --> See nearby quakes!
139 km (86 mi) WNW of Santiago (pop: 4,837,300) --> See nearby quakes!
151 km (94 mi) WNW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 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 4.120 km42 km al O de ValparaísoGUG (U. Chile)

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 yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area

Mag. 4.1 earthquake - South Pacific Ocean, 41 km west of Valparaiso, Region de Valparaiso, Chile, on Monday, 21 September 2015 at 21:17 (GMT)
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