Weak mag. 3.1 earthquake - South Pacific Ocean, 75 km southwest of San Antonio, Region de Valparaiso, Chile, on Monday, April 19, 2021 at 14:33 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, 18 Apr 11:18 pm (GMT -4), which had occurred 11 hours earlier.
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Weak magnitude 3.1 earthquake at 38 km depth
19 Apr 14:54 UTC: First to report: EMSC after 20 minutes.
19 Apr 14:54: Now using data updates from GUG (U. Chile)
19 Apr 15:30: Hypocenter depth recalculated from 40.4 to 38.0 km (from 25 to 24 mi). Epicenter location corrected by 1 km (0.6 mi) towards E.
19 Apr 14:54: Now using data updates from GUG (U. Chile)
19 Apr 15:30: Hypocenter depth recalculated from 40.4 to 38.0 km (from 25 to 24 mi). Epicenter location corrected by 1 km (0.6 mi) towards E.
Earthquake details
| Date & time | Apr 19, 2021 14:33:36 UTC - |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 3.1 |
| Depth | 38.0 km |
| Epicenter latitude / longitude | 34.001°S / 72.261°W  (South Pacific Ocean, Chile) |
| Antipode | 34.001°N / 107.739°E |
| Shaking intensity | Very weak shaking |
| Felt | 0 reports |
| Primary data source | GUG (U. Chile) |
| Nearest volcano | Palomo (194 km / 121 mi) |
| Nearby towns and cities | 75 km (47 mi) SW of San Antonio (pop: 85,700) | Show on map | Quakes nearby 78 km (49 mi) SW of Cartagena (San Antonio) (pop: 16,900) | Show on map | Quakes nearby 103 km (64 mi) WSW of Melipilla (pop: 63,100) | Show on map | Quakes nearby 122 km (76 mi) SSW of Valparaiso (pop: 282,400) | Show on map | Quakes nearby 127 km (79 mi) SSW of Viña del Mar (pop: 294,600) | Show on map | Quakes nearby 130 km (81 mi) SW of Quilpué (pop: 130,300) | Show on map | Quakes nearby 135 km (84 mi) SW of Villa Alemana (pop: 97,300) | Show on map | Quakes nearby 141 km (88 mi) W of Rancagua (pop: 212,700) | Show on map | Quakes nearby 161 km (100 mi) WSW of Santiago de Chile (pop: 4,837,300) | Show on map | Quakes nearby 162 km (100 mi) WSW of Puente Alto (pop: 510,400) | Show on map | Quakes nearby |
| Estimated seismic energy released | 2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 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 |
| 3.1 | 38 km | 40 Km Al O De Navidad, Chile | GUG (U. Chile) |
| 3.1 | 38 km | OFFSHORE O'HIGGINS, CHILE | EMSC |
User reports for this quake
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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