Light mag. 3.3 earthquake - South Pacific Ocean, 85 km southwest of San Antonio, Region de Valparaiso, Chile, on Sunday, April 25, 2021 at 06:21 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 3 days earlier.
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Light magnitude 3.3 earthquake at 16 km depth
25 Apr 06:31 UTC: First to report: EMSC after 10 minutes.
25 Apr 06:32: Now using data updates from GUG (U. Chile)
25 Apr 07:16: Magnitude recalculated from 3.2 to 3.3. Hypocenter depth recalculated from 14.1 to 15.8 km (from 8.8 to 9.8 mi). Epicenter location corrected by 1.9 km (1.2 mi) towards W.
25 Apr 06:32: Now using data updates from GUG (U. Chile)
25 Apr 07:16: Magnitude recalculated from 3.2 to 3.3. Hypocenter depth recalculated from 14.1 to 15.8 km (from 8.8 to 9.8 mi). Epicenter location corrected by 1.9 km (1.2 mi) towards W.
Earthquake details
| Date & time | Apr 25, 2021 06:21:27 UTC - |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 3.3 |
| Depth | 15.8 km |
| Epicenter latitude / longitude | 34.031°S / 72.362°W  (South Pacific Ocean, Chile) |
| Antipode | 34.031°N / 107.638°E |
| Shaking intensity | Weak shaking near epicenter |
| Felt | 0 reports |
| Primary data source | GUG (U. Chile) |
| Nearest volcano | Palomo (199 km / 124 mi) |
| Nearby towns and cities | 85 km (53 mi) SW of San Antonio (pop: 85,700) | Show on map | Quakes nearby 88 km (54 mi) SW of Cartagena (San Antonio) (pop: 16,900) | Show on map | Quakes nearby 113 km (70 mi) WSW of Melipilla (pop: 63,100) | Show on map | Quakes nearby 130 km (81 mi) SSW of Valparaiso (pop: 282,400) | Show on map | Quakes nearby 135 km (84 mi) SSW of Viña del Mar (pop: 294,600) | Show on map | Quakes nearby 139 km (86 mi) SW of Quilpué (pop: 130,300) | Show on map | Quakes nearby 150 km (93 mi) W of Rancagua (pop: 212,700) | Show on map | Quakes nearby 168 km (104 mi) NNW of Talca (pop: 197,500) | 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 | 5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 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 |
| 3.3 | 16 km | 91 Km Al SO De El Tabo, Chile | GUG (U. Chile) |
| 3.3 | 16 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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