Mag. 3.4 earthquake - South Pacific Ocean, 46 km west of La Ligua, Petorca Province, Valparaiso, Chile, on Monday, 21 September 2015 at 03:56 (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 | Valparaiso | Santiago Metropolitan
Minor magnitude 3.4 earthquake at 10 km depth
21 Sep 04:18 UTC: First to report: GUG (U. Chile) after 22 minutes.
Magnitude: 3.4
Depth: 10.3 km
Epicenter latitude / longitude: 32.363°S / 71.709°W
(South Pacific Ocean, Chile)Nearest volcano: Tupungatito (212 km / 132 mi)
Nearby towns and cities:
46 km (29 mi) WNW of La Ligua (Petorca) (pop: 24,900) --> See nearby quakes!
66 km (41 mi) NW of Hacienda La Calera (pop: 49,100) --> See nearby quakes!
72 km (45 mi) NW of Quillota (pop: 67,800) --> See nearby quakes!
75 km (47 mi) NNW of Viña del Mar (pop: 294,600) --> See nearby quakes!
75 km (47 mi) N of Valparaiso (pop: 282,400) --> See nearby quakes!
80 km (50 mi) NNW of Quilpué (pop: 130,300) --> See nearby quakes!
82 km (51 mi) NNW of Villa Alemana (pop: 97,300) --> See nearby quakes!
84 km (52 mi) NNW of Limache (Marga Marga) (pop: 35,900) --> See nearby quakes!
157 km (97 mi) NW of Santiago de Chile (pop: 4,837,300) --> See nearby quakes!
175 km (108 mi) NW of Puente Alto (pop: 510,400) --> See nearby quakes!
Primary data source: GUG (U. Chile)
Estimated released energy: 7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 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 3.4 | 10.3 km | 46 km al O de La Ligua | 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. 3.4 earthquake - South Pacific Ocean, 46 km west of La Ligua, Petorca Province, Valparaiso, Chile, on Monday, 21 September 2015 at 03:56 (GMT)
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