Light mag. 4.1 earthquake - South Pacific Ocean, 86 km southwest of San Antonio, Region de Valparaiso, Chile, on 28 Apr 2:25 pm (GMT -4) -

Light mag. 4.1 earthquake - South Pacific Ocean, 86 km southwest of San Antonio, Region de Valparaiso, Chile, on 28 Apr 2:25 pm (GMT -4) Light mag. 4.1 earthquake - South Pacific Ocean, 86 km southwest of San Antonio, Region de Valparaiso, Chile, on 28 Apr 2:25 pm (GMT -4)

Light magnitude 4.1 earthquake at 31 km depth

28 Apr 18:36 UTC: First to report: GUG (U. Chile) after 11 minutes.
28 Apr 18:40: Hypocenter depth recalculated from 32.2 to 31.2 km (from 20 to 19.4 mi).

Earthquake details

Date & timeApr 28, 2021 18:25:12 UTC -
Local time at epicenter28 Apr 2:25 pm (GMT -4)
Depth31.2 km
Epicenter latitude / longitude34.082°S / 72.33°W (South Pacific Ocean, Chile)
Antipode34.082°N / 107.67°E
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceGUG (U. Chile)
Nearest volcanoPalomo (196 km / 122 mi)
Nearby towns and cities86 km (53 mi) SW of San Antonio (pop: 85,700) | Show on map | Quakes nearby
89 km (55 mi) SW of Cartagena (San Antonio) (pop: 16,900) | Show on map | Quakes nearby
112 km (69 mi) WSW of Melipilla (pop: 63,100) | Show on map | Quakes nearby
133 km (83 mi) SSW of Valparaiso (pop: 282,400) | Show on map | Quakes nearby
138 km (86 mi) SSW of Viña del Mar (pop: 294,600) | Show on map | Quakes nearby
146 km (91 mi) W of Rancagua (pop: 212,700) | Show on map | Quakes nearby
162 km (101 mi) NNW of Talca (pop: 197,500) | Show on map | Quakes nearby
170 km (106 mi) WSW of Puente Alto (pop: 510,400) | Show on map | Quakes nearby
170 km (106 mi) WSW of Santiago de Chile (pop: 4,837,300) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 15°C (59 F), humidity: 77%, wind: 6 m/s (11 kts) from SSW
Estimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | about seismic energy
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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.
4.131 km93 Km Al SO De El Tabo, ChileGUG (U. Chile)
4.715 kmOff Coast of Central ChileGFZ
4.610 kmOff Coast of Central ChileUSP

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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