Light mag. 3.9 earthquake - South Pacific Ocean, 73 km southwest of San Antonio, Valparaiso, Chile, on 19 Apr 9:47 am (GMT -4) -

This quake was likely an aftershock of the 5.1 quake South Pacific Ocean, 75 km southwest of San Antonio, Valparaiso, Chile, 19 Apr 9:05 am (GMT -4), which had occurred 42 minutes earlier.
Light mag. 3.9 earthquake - South Pacific Ocean, 73 km southwest of San Antonio, Valparaiso, Chile, on 19 Apr 9:47 am (GMT -4)

Light magnitude 3.9 earthquake at 38 km depth

19 Apr 14:24 UTC: First to report: EMSC after 37 minutes.
19 Apr 14:11: Hypocenter depth recalculated from 41.0 to 2.0 km (from 25 to 1.2 mi). Epicenter location corrected by 8.3 km (5.1 mi) towards NNW.
... [show all] ...
19 Apr 15:18: Magnitude recalculated from 3.8 to 3.9. Hypocenter depth recalculated from 40.6 to 37.9 km (from 25 to 24 mi). Epicenter location corrected by 8.7 km (5.4 mi) towards WNW.
Date & time: 19 Apr 2021 13:47:24 UTC -
Local time at epicenter: 19 Apr 9:47 am (GMT -4)
Magnitude: 3.9
Depth: 37.9 km
Epicenter latitude / longitude: 33.998°S / 72.282°W (South Pacific Ocean, Chile)
Nearest volcano: Palomo (186 km / 116 mi)
Nearby towns and cities:
51 km (32 mi) NNW of Los Navegantes (Provincia de Cardenal Caro) (pop: 231) --> See nearby quakes!
77 km (48 mi) SW of San Antonio (pop: 85,700) --> See nearby quakes!
80 km (49 mi) SW of Cartagena (San Antonio) (pop: 16,900) --> See nearby quakes!
104 km (65 mi) WSW of Melipilla (pop: 63,100) --> See nearby quakes!
123 km (76 mi) SSW of Valparaiso (pop: 282,400) --> See nearby quakes!
128 km (79 mi) SSW of Viña del Mar (pop: 294,600) --> See nearby quakes!
131 km (82 mi) SW of Quilpue (pop: 130,300) --> See nearby quakes!
143 km (89 mi) W of Rancagua (pop: 212,700) --> See nearby quakes!
163 km (101 mi) WSW of Santiago (pop: 4,837,300) --> See nearby quakes!
163 km (102 mi) WSW 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
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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.
3.938 km42 Km Al O De Navidad, ChileGUG (U. Chile)
4.110 km81 Km WSW of San Antonio, ChileUSGS
4.610 kmOff Coast of Central ChileGFZ

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
162.3 km ENE of epicenter [Map] / Very weak shaking (MMI II) / very short (reported through our app)
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