Mag. 3.5 earthquake - South Pacific Ocean, 41 km west of Illapel, Provincia de Choapa, Coquimbo Region, Chile, on Monday, 21 September 2015 at 01:41 (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.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in Chile | Coquimbo Region | Region de Valparaiso | Santiago Metropolitan

Minor magnitude 3.5 earthquake at 37 km depth
21 Sep 02:18 UTC: First to report: GUG (U. Chile) after 37 minutes.
Hypocenter depth recalculated from 46.3 to 37.4 km.
Hypocenter depth recalculated from 46.3 to 37.4 km.
Magnitude: 3.5
Depth: 37.4 km
Epicenter latitude / longitude: 31.624°S / 71.6°W

Nearby towns and cities:
41 km (25 mi) W of Illapel (Choapa) (pop: 22,800) --> See nearby quakes!
63 km (39 mi) WNW of Salamanca (Choapa) (pop: 13,300) --> See nearby quakes!
98 km (61 mi) NNW of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
120 km (75 mi) SSW of Ovalle (pop: 77,100) --> See nearby quakes!
134 km (83 mi) NNW of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
144 km (89 mi) NNW of Quillota (pop: 67,800) --> See nearby quakes!
156 km (97 mi) N of Viña del Mar (pop: 294,600) --> See nearby quakes!
157 km (98 mi) N of Valparaiso (pop: 282,400) --> See nearby quakes!
223 km (138 mi) NNW of Santiago (pop: 4,837,300) --> See nearby quakes!
241 km (150 mi) NNW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 1.1 x 1010 joules (3.12 megawatt hours, equivalent to 2.68 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 3.5 | 37 km | 28 km al SO de Canela Baja | GUG (U. Chile) |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
be the first to report it!
There are no user reports for this quake yet. If you felt it Earlier earthquakes in the same area
Mag. 3.5 earthquake - South Pacific Ocean, 41 km west of Illapel, Provincia de Choapa, Coquimbo Region, Chile, on Monday, 21 September 2015 at 01:41 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!