Mag. 3.9 earthquake - South Pacific Ocean, 228 km northwest of Santiago, Provincia de Santiago, Santiago Metropolitan, Chile, on Wednesday, 7 October 2015 at 13:06 (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 weeks earlier.
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Minor magnitude 3.9 earthquake at 17 km depth
7 Oct 14:18 UTC: First to report: GUG (U. Chile) after 1 hour and 11 minutes.
Magnitude: 3.9
Depth: 16.8 km
Epicenter latitude / longitude: 31.873°S / 72.201°W
(South Pacific Ocean, Chile)Nearby towns and cities:
101 km (63 mi) WSW of Illapel (Choapa) (pop: 22,800) --> See nearby quakes!
112 km (69 mi) NW of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
137 km (85 mi) NW of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
140 km (87 mi) NNW of Valparaiso (pop: 282,400) --> See nearby quakes!
142 km (88 mi) NNW of Viña del Mar (pop: 294,600) --> See nearby quakes!
144 km (89 mi) NW of Quillota (pop: 67,800) --> See nearby quakes!
149 km (92 mi) NNW of Quilpué (pop: 130,300) --> See nearby quakes!
151 km (94 mi) NNW of Villa Alemana (pop: 97,300) --> See nearby quakes!
228 km (142 mi) NW of Santiago (pop: 4,837,300) --> See nearby quakes!
246 km (153 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 | 17 km | 65 km al O de Los Vilos | GUG (U. Chile) |
| M 4.2 | 10 km | OFFSHORE COQUIMBO, CHILE | EMSC |
| M 4.2 | 10 km | - 123km W of Illapel, Chile | USGS |
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. 3.9 earthquake - South Pacific Ocean, 228 km northwest of Santiago, Provincia de Santiago, Santiago Metropolitan, Chile, on Wednesday, 7 October 2015 at 13:06 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!
