Minor mag. 2.8 earthquake - South Pacific Ocean, 84 km southwest of San Antonio, Region de Valparaiso, Chile, on Thursday, April 22, 2021 at 21:54 GMT -
This quake was likely an aftershock of the 5.3 quake South Pacific Ocean, 88 km southwest of San Antonio, Region de Valparaiso, Chile, 21 Apr 8:17 pm (GMT -4), which had occurred 22 hours earlier.
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Minor magnitude 2.8 earthquake at 36 km depth
22 Apr 23:36 UTC: First to report: EMSC after 1 hour and 42 minutes.
22 Apr 23:36: Now using data updates from GUG (U. Chile)
22 Apr 23:36: Now using data updates from GUG (U. Chile)
Earthquake details
Date & time | Apr 22, 2021 21:54:27 UTC - |
Local time at epicenter | |
Status | Confirmed |
Magnitude | 2.8 |
Depth | 36.2 km |
Epicenter latitude / longitude | 33.997°S / 72.379°W ![]() |
Antipode | 33.997°N / 107.621°E |
Shaking intensity | Very weak shaking |
Felt | 0 reports |
Primary data source | GUG (U. Chile) |
Nearest volcano | Palomo (203 km / 126 mi) |
Nearby towns and cities | 84 km (52 mi) WSW of San Antonio (pop: 85,700) | Show on map | Quakes nearby 87 km (54 mi) SW of Cartagena (San Antonio) (pop: 16,900) | Show on map | Quakes nearby 117 km (73 mi) NW of Santa Cruz (Colchagua) (pop: 33,300) | Show on map | Quakes nearby 171 km (106 mi) WSW of Santiago de Chile (pop: 4,837,300) | Show on map | Quakes nearby |
Estimated seismic energy released | 1 x 109 joules (278 kilowatt hours, equivalent to 0.239 tons of TNT) | about seismic energy |
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.
Mag. | Depth | Location | Source |
2.8 | 36 km | 51 Km Al O De Navidad, Chile | GUG (U. Chile) |
2.8 | 36 km | OFFSHORE O'HIGGINS, CHILE | EMSC |
User reports for this quake
At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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