M4.0

USGS earthquake · M4.08 km SE of Port Clarence, Alaska

Name: M4.0 earthquake at 8 km SE of Port Clarence, Alaska
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

🇺🇸 - United States

Sep 10, 2026, 11:03 PM UTC · 48 days ago

Map centered on the earthquake at 8 km SE of Port Clarence, Alaska, with a marker at its epicenter

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Shaking intensity

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

Depth5.0 km

Origin timeSep 10, 2026, 11:03 PM UTC

Coordinates65.211, -166.721

Tsunami flagNot reported

Estimated shakingLight (IV)Modelled by USGS ShakeMap

Reported shakingLight (IV)From 7 public reports

Magnitude scaleLocal magnitude

SolutionReviewed by a seismologist

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.

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USGS earthquake · M4.08 km SE of Port Clarence, Alaska

U.S. Geological Survey

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