M4.0

USGS earthquake · M4.010 km N of Lake Pillsbury, CA

Name: M4.0 earthquake at 10 km N of Lake Pillsbury, CA
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

🇺🇸 - United States

Oct 28, 2026, 12:01 PM UTC · 1 hour ago

Map centered on the earthquake at 10 km N of Lake Pillsbury, CA, with a marker at its epicenter

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Shaking intensity

Strongest contour: Weak (III). Modelled by USGS ShakeMap; contours show where shaking was expected to reach each level, not damage.

Depth10.6 km

Origin timeOct 28, 2026, 12:01 PM UTC

Coordinates39.500, -122.952

Tsunami flagNot reported

Estimated shakingLight (IV)Modelled by USGS ShakeMap

Reported shakingLight (IV)From 2 public reports

Magnitude scaleMoment magnitude

SolutionReviewed by a seismologist

Who felt it

Nearby places

Lake Pillsbury, California10 km N of the epicentre
Alder Springs, California26 km SW of the epicentre
Redwood Valley, California34 km NE of the epicentre

Places listed by USGS. Distances are to the epicentre.

Official source

U.S. Geological Survey

Terremoto preserves this event snapshot for a stable public link. USGS remains the authoritative source for revisions and scientific details. Shaking contours and population estimates come from USGS ShakeMap and PAGER, which revise them as more data arrives.

View the USGS record ↗

USGS earthquake · M4.010 km N of Lake Pillsbury, CA

Nearby places

U.S. Geological Survey

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