Mag. 4.1 earthquake - South Pacific Ocean, 78 km northwest of Valparaiso, Region de Valparaiso, Chile, on Friday, 18 September 2015 at 15:13 (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 1 day 16 hours earlier.
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Light magnitude 4.1 earthquake at 45 km depth
18 Sep 16:18 UTC: First to report: GUG (U. Chile) after 1 hour and 5 minutes.
Magnitude: 4.1
Depth: 44.7 km
Epicenter latitude / longitude: 32.445°S / 72.071°W
(South Pacific Ocean, Chile)Nearest volcano: Tupungatito (237 km / 147 mi)
Nearby towns and cities:
78 km (48 mi) NNW of Valparaiso (pop: 282,400) --> See nearby quakes!
79 km (49 mi) W of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
81 km (50 mi) NW of Viña del Mar (pop: 294,600) --> See nearby quakes!
88 km (55 mi) WNW of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
89 km (55 mi) NW of Quilpué (pop: 130,300) --> See nearby quakes!
91 km (57 mi) WNW of Quillota (pop: 67,800) --> See nearby quakes!
93 km (58 mi) NW of Villa Alemana (pop: 97,300) --> See nearby quakes!
99 km (61 mi) NW of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
174 km (108 mi) NW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
190 km (118 mi) NW 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
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.
| Magnitude | Depth | Location | Source |
| M 4.1 | 45 km | 79 km al O de La Ligua | GUG (U. Chile) |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Earlier earthquakes in the same area
Mag. 4.1 earthquake - South Pacific Ocean, 78 km northwest of Valparaiso, Region de Valparaiso, Chile, on Friday, 18 September 2015 at 15:13 (GMT)
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