Earthquakes low

M 3.4 Earthquake 6 km SW of Mount Shasta, CA

Source: USGS · Northern California

A magnitude 3.4 earthquake was recorded by USGS near 6 km SW of Mount Shasta. On the USGS Earthquake Hazards Program scale, M3.4 is classified "Minor". Among the 1,740 earthquake reports Areazine has published, this M3.4 event ranks stronger than 26% of them (rank #1,192 by magnitude).

This earthquake report, quickly

Magnitude
M 3.4
USGS class
Minor
Location
6 km SW of Mount Shasta
Archive rank
#1,192 of 1,740
Source
USGS
Published
September 17, 2026
MINOR

Stronger than 26% of the 1,740 earthquake reports in Areazine's archive, weaker than 1,191 others.

Record status: a snapshot from USGS, not a final record. Check USGS's own event page for aftershocks and any later revision to the magnitude shown here.

What Happened

A magnitude 3.4 ml earthquake occurred 6 km SW of Mount Shasta, CA, on 2026-09-17 at 20:26:24 UTC. The event registered a depth of 47.9 km.

Location Details

The earthquake was located at coordinates 41.2735°N, 122.3692°W. This intermediate depth (20-70 km) places the event below the Earth's crust in a region near Mount Shasta in Northern California.

Impact Assessment

No felt reports were recorded. There was no tsunami advisory (tsunami: 0) and no alert level issued.

What You Should Know

Earthquakes of this magnitude are often felt but rarely cause damage. Residents should be prepared for possible aftershocks and follow standard earthquake safety procedures.

Source

Data from USGS: https://earthquake.usgs.gov/earthquakes/eventpage/nc75437222

Original source: USGS Official Notice ↗

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Elsewhere in the country: similar length or severity timing 8

Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.

Similar body length

Nearest notices by article body length (782 characters here).

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Similar severity timing

Same severity (low) notices issued closest in time to September 17, 2026.

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Frequently Asked Questions

What people usually ask about a notice like this one.

What was the magnitude of this event? ▾
A magnitude 3.4 ml earthquake struck 6 km southwest of Mount Shasta, California, at a depth of 47.9 km.
How should a magnitude 3.4 ("Minor") event be understood? ▾
The USGS classifies M3.4 as "Minor" on its Earthquake Hazards Program scale. Events in this range are rarely felt beyond the immediate epicenter and typically cause no damage; most are recorded only by seismographs.
Is this earthquake stronger or weaker than others in the archive? ▾
This is the #1,192 strongest of the 1,740 earthquake reports in Areazine's archive by magnitude, stronger than 26% of them and weaker than 1,191 others.
Was Mount Shasta likely to feel this earthquake? ▾
This event was centered 6 km SW of Mount Shasta. Shaking intensity falls off sharply with distance from the epicenter and depends on depth and local geology, so check the USGS "Did You Feel It?" report for this event for real felt-shaking data rather than assuming from magnitude and distance alone.

Primary source data

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