787daily · Analysis

Quake Watch

A first report from USGS's own record — magnitude, depth, where it struck, how many felt it and how hard, the aftershocks so far, and how far it sits from the 2020 sequence at Indios.

Published
Within the hour of an earthquake that rings the bell
Source
The U.S. Geological Survey's earthquake record, by the alerts bell's own rule: magnitude 4.5 or more within 150 km of the island's center, 4.0 or more within 50 km of the coast, or any quake USGS itself flags: a yellow-or-worse damage alert (PAGER) or estimated shaking of intensity V or stronger
Editions
1

The live island dashboard page

Latest edition

Quake Watch: Magnitude 4.8 Earthquake Near Guánica, 82 Felt Reports

  • Magnitude 4.8 at 9:19 AM, 5 km SW of Guánica, 7 km deep
  • 82 "Did You Feel It?" reports; estimated intensity IV
  • 32 aftershocks within 30 km at the time of writing
  • No tsunami flagged by USGS