Mag. 3.9 earthquake - Choapa, 35 km northwest of Illapel, Provincia de Choapa, Coquimbo Region, Chile, on Sunday, 20 September 2015 at 01:26 (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 3 days earlier.
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Minor magnitude 3.9 earthquake at 37 km depth
20 Sep 02:18 UTC: First to report: GUG (U. Chile) after 52 minutes.
Magnitude: 3.9
Depth: 37.1 km
Epicenter latitude / longitude: 31.423°S / 71.445°W
(Choapa, Coquimbo Region, Chile)Nearby towns and cities:
35 km (22 mi) NW of Illapel (Choapa, Coquimbo Region) (pop: 22,800) --> See nearby quakes!
60 km (38 mi) NW of Salamanca (Choapa, Coquimbo Region) (pop: 13,300) --> See nearby quakes!
93 km (58 mi) SSW of Monte Patria (Coquimbo Region) (pop: 13,900) --> See nearby quakes!
94 km (59 mi) SSW of Ovalle (Coquimbo Region) (pop: 77,100) --> See nearby quakes!
116 km (72 mi) N of La Ligua (Petorca, Valparaíso) (pop: 24,900) --> See nearby quakes!
153 km (95 mi) N of Hacienda La Calera (Valparaíso) (pop: 49,100) --> See nearby quakes!
164 km (102 mi) S of Coquimbo (Coquimbo Region) (pop: 161,300) --> See nearby quakes!
170 km (106 mi) S of La Serena (Coquimbo Region) (pop: 154,500) --> See nearby quakes!
238 km (148 mi) NNW of Santiago (Santiago Metropolitan) (pop: 4,837,300) --> See nearby quakes!
257 km (160 mi) NNW of Puente Alto (Santiago Metropolitan) (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 | 37 km | 3 km al SE de Canela Baja | GUG (U. Chile) |
User reports for this quake
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Earlier earthquakes in the same area
Mag. 3.9 earthquake - Choapa, 35 km northwest of Illapel, Provincia de Choapa, Coquimbo Region, Chile, on Sunday, 20 September 2015 at 01:26 (GMT)
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