M 3.5 Earthquake Strikes 24 km SW of Maricopa, 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 3.5 earthquake occurred 24 km southwest of Maricopa, California, at a depth of about 8.7 km, and was reported felt by one person.

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

This notice was issued by USGS on April 15, 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 magnitude 3.5 mlr earthquake struck on June 28, 2026, at 07:44:37 UTC, located 24 km SW of Maricopa, CA, at a depth of 8.73 km.

Location Details

The earthquake was centered at coordinates 34.92° N, 119.60° W. This shallow depth, less than 20 km, means it occurred in the Earth's upper crust, potentially making it more noticeable near the epicenter in this region of California.

Impact Assessment

One person reported feeling the earthquake. There is no tsunami advisory, and no alert level was issued.

What You Should Know

This minor earthquake, with a magnitude of 3.5, is often felt but rarely causes damage. Be aware of the possibility of aftershocks and follow basic safety tips, such as dropping to the ground, covering your head and neck, and holding on during shaking.

Source

Data from USGS: https://earthquake.usgs.gov/earthquakes/eventpage/ci41441464

Original source: USGS Official Notice ↗

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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.

Frequently Asked Questions

Common questions about this USGS earthquake report.

What is this USGS earthquake report about?
A magnitude 3.5 earthquake occurred 24 km southwest of Maricopa, California, at a depth of about 8.7 km, and was reported felt by one person.
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.