M 3.4 Earthquake Hits Near Muscoy, California

Source: USGS · Southern California

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 3.4 earthquake struck 1 km southeast of Muscoy, California, at a shallow depth of about 13.3 km, and was felt by 105 people according to reports.

What this USGS earthquake report tells you, and what most readers miss

This notice was issued by USGS on May 10, 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 read it as a data point about the issuing system: how quickly USGS detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized USGS earthquake report is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (earthquake, seismic, usgs, California) map to related alerts in the same area of risk - browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

What Happened

An earthquake with a magnitude of 3.4 ml occurred on July 14, 2026, at 07:59 UTC (exact local timezone not specified). The event took place at a depth of 13.3 km and was centered 1 km southeast of Muscoy, California.

Location Details

The earthquake was located 1 km southeast of Muscoy, a community in California, with coordinates at approximately 34.147° N latitude and 117.334° W longitude. At a depth of 13.3 km, this is considered a shallow earthquake, which typically results in more noticeable shaking near the epicenter compared to deeper events.

Impact Assessment

The earthquake was felt by 105 people, as reported through community data. There was no tsunami advisory issued, and no alert level was specified.

What You Should Know

This minor earthquake, with a magnitude of 3.4, is often felt but rarely causes damage. Aftershocks may occur, though specifics cannot be predicted; general safety tips include staying indoors and using the 'drop, cover, and hold on' method if shaking is felt.

Source

This information is sourced from the United States Geological Survey (USGS). For more details, visit: USGS Event Page

Original source: USGS Official Notice ↗

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Frequently Asked Questions

Common questions about this USGS earthquake report.

What is this USGS earthquake report about?
A magnitude 3.4 earthquake struck 1 km southeast of Muscoy, California, at a shallow depth of about 13.3 km, and was felt by 105 people according to reports.
Which agency issued this alert?
This alert was issued by USGS. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "low" severity. No immediate action required, but stay aware.
What area is affected?
This alert affects Southern California. Check with USGS for the most current geographic scope.
Where can I find more Earthquakes updates?
Browse the full Earthquakes feed on Areazine at areazine.com/earthquakes/ for the latest updates from USGS and other agencies.