Overview
- The U.S. Geological Survey recorded a shallow offshore earthquake near Hermosa Beach with an initial magnitude of 3.5 that was later reported as 3.6.
- The quake occurred roughly six miles deep about six kilometers west of Hermosa Beach and produced weak shaking across the South Bay with no immediate reports of major damage or injuries.
- Hundreds of public responses to the USGS “Did You Feel It?” system gave the event a preliminary intensity of III, which indicates light, widely felt shaking.
- Officials did not issue a tsunami warning and the USGS continues routine monitoring for any aftershocks or revised event measurements.
- Scientists say this event is part of a pattern of small shallow earthquakes in the region, including a mid‑September Compton cluster, and they use such clusters to reassess fault stress even though swarms do not reliably predict larger quakes.