Earthquake

M 4.9 earthquake, 100 km SSW of Nikolski, Alaska

Source: USGS event page

Origin time: 2026-09-03 11:39 UTC

Magnitude: M 4.9 (mb)
Peak shaking estimate · USGS: III — weak

10 km deep

Reviewed by a USGS seismologist

Revised by USGS · 2026-09-28 10:00 UTC

What this tells you

Magnitude measures quake size; MMI is local shaking intensity. Estimates do not confirm injuries or damage.

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Citation & source notes

Origin time: 2026-09-03 11:39 UTC
Agency revision: 2026-09-28 10:00 UTC
Retrieved by this site: 2026-10-11 19:49 UTC

Published facts in your selected timezone, with original source links. Check the agency for revisions.

Attributed summary

M 4.9 earthquake, 100 km SSW of Nikolski, Alaska
10 km deep
Reviewed by a USGS seismologist
Revised by USGS
Origin time: 2026-09-03 11:39 UTC
Agency revision: 2026-09-28 10:00 UTC
Retrieved by this site: 2026-10-11 19:49 UTC

Sources:
USGS: https://earthquake.usgs.gov/earthquakes/eventpage/us7000tdw5

Natural Disaster Map: https://naturaldisastermap.com/event/q-us7000tdw5
Snapshot of published information; agencies may revise it. Check the official source for updates.
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Agency measurements and details

Magnitude: M 4.9 (mb)
Depth: 10 km
Origin time: 2026-09-03 11:39 UTC
Status: Reviewed by USGS
Last revised: 2026-09-28 10:00 UTC

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