Weak mag. 3.1 earthquake - South Pacific Ocean, 77 km southwest of San Antonio, Region de Valparaiso, Chile, on Wednesday, April 21, 2021 at 05:43 GMT -
This quake was likely an aftershock of the 5.1 quake South Pacific Ocean, 77 km southwest of San Antonio, Region de Valparaiso, Chile, 19 Apr 9:05 am (GMT -4), which had occurred 1 day 17 hours earlier.
Quake Data | Interactive map | User Reports | Earlier quakes here | Quakes in Chile | Region de Valparaiso | Santiago | O'Higgins
Weak magnitude 3.1 earthquake at 25 km depth
21 Apr 05:54 UTC: First to report: GUG (U. Chile) after 10 minutes.
Earthquake details
| Date & time | Apr 21, 2021 05:43:46 UTC - |
| Local time at epicenter | |
| Status | Confirmed |
| Magnitude | 3.1 |
| Depth | 25.1 km |
| Epicenter latitude / longitude | 34.044°S / 72.245°W  (South Pacific Ocean, Chile) |
| Antipode | 34.044°N / 107.755°E |
| Shaking intensity | Very weak shaking |
| Felt | 0 reports |
| Primary data source | GUG (U. Chile) |
| Nearest volcano | Palomo (190 km / 118 mi) |
| Nearby towns and cities | 77 km (48 mi) SW of San Antonio (pop: 85,700) | Show on map | Quakes nearby 80 km (50 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 126 km (78 mi) SSW of Valparaiso (pop: 282,400) | Show on map | Quakes nearby 130 km (81 mi) SSW of Viña del Mar (pop: 294,600) | Show on map | Quakes nearby 133 km (83 mi) SSW of Quilpué (pop: 130,300) | Show on map | Quakes nearby 139 km (86 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 | 25 km | 39 Km Al O De Navidad, Chile | GUG (U. Chile) |
| 3.1 | 25 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
Click here to search our database for earlier earthquakes in the same area since 1900!
