Mag. 4.2 earthquake - Choapa, 26 km west of Illapel, Provincia de Choapa, Coquimbo Region, Chile, on Monday, 28 September 2015 at 16:59 (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 12 days earlier.
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Light magnitude 4.2 earthquake at 48 km depth
28 Sep 17:18 UTC: First to report: GUG (U. Chile) after 18 minutes.
Hypocenter depth recalculated from 41.1 to 48.3 km.
Hypocenter depth recalculated from 41.1 to 48.3 km.
Magnitude: 4.2
Depth: 48.3 km
Epicenter latitude / longitude: 31.607°S / 71.441°W
(Choapa, Coquimbo Region, Chile)Nearest volcano: Tupungatito (247 km / 153 mi)
Nearby towns and cities:
26 km (16 mi) W of Illapel (Choapa, Coquimbo Region) (pop: 22,800) --> See nearby quakes!
49 km (30 mi) WNW of Salamanca (Choapa, Coquimbo Region) (pop: 13,300) --> See nearby quakes!
96 km (60 mi) NNW of La Ligua (Petorca, Valparaíso) (pop: 24,900) --> See nearby quakes!
114 km (71 mi) S of Ovalle (Coquimbo Region) (pop: 77,100) --> See nearby quakes!
133 km (82 mi) N of Hacienda La Calera (Valparaíso) (pop: 49,100) --> See nearby quakes!
143 km (89 mi) N of Quillota (Valparaíso) (pop: 67,800) --> See nearby quakes!
158 km (98 mi) N of Viña del Mar (Valparaíso) (pop: 294,600) --> See nearby quakes!
160 km (99 mi) N of Valparaiso (Valparaíso) (pop: 282,400) --> See nearby quakes!
219 km (136 mi) NNW of Santiago (Santiago Metropolitan) (pop: 4,837,300) --> See nearby quakes!
237 km (147 mi) NNW of Puente Alto (Santiago Metropolitan) (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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 4.2 | 48 km | 23 km al S 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.
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Earlier earthquakes in the same area
Mag. 4.2 earthquake - Choapa, 26 km west of Illapel, Provincia de Choapa, Coquimbo Region, Chile, on Monday, 28 September 2015 at 16:59 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!
