Mag. 3.9 earthquake - South Pacific Ocean, 235 km northwest of Santiago, Provincia de Santiago, Santiago Metropolitan, Chile, on Wednesday, 23 September 2015 at 01:12 (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 6 days earlier.
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Minor magnitude 3.9 earthquake at 38 km depth
23 Sep 02:18 UTC: First to report: GUG (U. Chile) after 1 hour and 5 minutes.
Hypocenter depth recalculated from 38.7 to 37.6 km.
Hypocenter depth recalculated from 38.7 to 37.6 km.
Magnitude: 3.9
Depth: 37.6 km
Epicenter latitude / longitude: 31.732°S / 72.089°W

Nearby towns and cities:
88 km (54 mi) W of Illapel (Choapa) (pop: 22,800) --> See nearby quakes!
114 km (71 mi) NW of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
150 km (93 mi) NNW of Quillota (pop: 67,800) --> See nearby quakes!
151 km (94 mi) NNW of Valparaiso (pop: 282,400) --> See nearby quakes!
152 km (94 mi) SSW of Ovalle (pop: 77,100) --> See nearby quakes!
152 km (95 mi) NNW of Viña del Mar (pop: 294,600) --> See nearby quakes!
158 km (98 mi) NNW of Quilpué (pop: 130,300) --> See nearby quakes!
160 km (100 mi) NNW of Villa Alemana (pop: 97,300) --> See nearby quakes!
235 km (146 mi) NW of Santiago (pop: 4,837,300) --> See nearby quakes!
253 km (157 mi) NW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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 3.9 | 38 km | 58 km al O de Los Vilos | GUG (U. Chile) |
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Mag. 3.9 earthquake - South Pacific Ocean, 235 km northwest of Santiago, Provincia de Santiago, Santiago Metropolitan, Chile, on Wednesday, 23 September 2015 at 01:12 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!