Mag. 3.7 earthquake - South Pacific Ocean, 71 km northwest of Valparaiso, Chile, on Sunday, 20 September 2015 at 14:44 (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 4 days earlier.
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Minor magnitude 3.7 earthquake at 39 km depth
20 Sep 15:18 UTC: First to report: GUG (U. Chile) after 34 minutes.
Magnitude: 3.7
Depth: 38.6 km
Epicenter latitude / longitude: 32.483°S / 72.017°W

Nearest volcano: Tupungatito (231 km / 144 mi)
Nearby towns and cities:
71 km (44 mi) NNW of Valparaiso (pop: 282,400) --> See nearby quakes!
74 km (46 mi) W of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
74 km (46 mi) NW of Viña del Mar (pop: 294,600) --> See nearby quakes!
82 km (51 mi) WNW of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
83 km (51 mi) NW of Quilpué (pop: 130,300) --> See nearby quakes!
85 km (53 mi) WNW of Quillota (pop: 67,800) --> See nearby quakes!
87 km (54 mi) NW of Villa Alemana (pop: 97,300) --> See nearby quakes!
92 km (57 mi) NW of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
167 km (104 mi) NW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
184 km (114 mi) NW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 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 3.7 | 39 km | 73 km al NO de Valparaíso | GUG (U. Chile) |
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Mag. 3.7 earthquake - South Pacific Ocean, 71 km northwest of Valparaiso, Chile, on Sunday, 20 September 2015 at 14:44 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!