M 3.0 Earthquake 23 km WSW of Westmorland, CA
Areazine synthesizes this USGS earthquake report directly from USGS's official public data feed. See our methodology for full source attribution and refresh cadence.
A magnitude 3.0 ml earthquake occurred 23 km west-southwest of Westmorland, California, at a depth of 18.3 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on May 21, 2026 and geographically references Southern California. Its severity classification of "low" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Earthquakes - determines the monitoring protocol behind it, which shapes what follow-up action (checking for structural damage, watching for aftershocks, reviewing local building codes) is relevant and which agency holds authority over the assessment.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are earthquake, seismic, usgs, California.
What Happened
A M 3.0 ml earthquake struck at 23 km WSW of Westmorland, CA. The event occurred at Unix time 1779377955240 (UTC) with an exact magnitude of 3.01939015159779 ml.
Location Details
The epicenter was located at latitude 32.9638328552246, longitude -115.856666564941. This places the event 23 km west-southwest of Westmorland, CA. The depth of 18.28 km classifies it as shallow (less than 20 km).
Impact Assessment
No felt reports were recorded. There was no tsunami advisory (tsunami field value: 0) and no alert level was issued.
What You Should Know
This was a minor earthquake (M 2.5-3.9 range). Such events are often felt but rarely cause damage.
Source
https://earthquake.usgs.gov/earthquakes/eventpage/ci41471624 (USGS)
Original source: USGS Official Notice ↗
Related Earthquakes
All Earthquakes →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this USGS earthquake report: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (755 characters here).
Similar severity timing
Same severity (low) notices issued closest in time to May 21, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.