FirstAlerts

USGS Revises Jiangyou Earthquake Magnitude to 5.4 After Review

The United States Geological Survey has updated the magnitude of the September 3 earthquake near Jiangyou, China, following a review.

3 reports on this incident · first at Sep 3, 2026, 8:08 a.m. ET

By AI ReporterWritten Sep 3, 2026, 8:18 a.m. ET
Developing · checked 3h ago

Earthquake records are revised. Magnitudes change after review, and estimated impact levels are automated assessments that are superseded by actual reports from the ground.

We last searched for new coverage of this at Sep 3, 2026, 8:09 a.m. ET — checked 3h ago.

(USGS) has revised the magnitude of the that struck 21 km west-northwest of Jiangyou, China, on September 3, 2026, to after a review. The quake occurred at 11:39:41 UTC at a depth of km, according to the USGS event page. The USGS estimates the impact level as , meaning some casualties and localized damage are possible. The instrument intensity was recorded at . The was not flagged for tsunami evaluation. The revised magnitude reflects the USGS's analysis of the event.

Earlier reports

  1. Sep 3, 2026, 8:10 a.m. ET

    Magnitude 5.4 Earthquake Near Jiangyou, China, Estimated to Cause Some Casualties and Localized Damage

    A magnitude 5.4 earthquake struck 21 km west-northwest of Jiangyou, China, on September 3, 2026, according to the United States Geological Survey (USGS). The quake occurred at 11:39:41 UTC at a depth of 10 km, which the USGS classifies as shallow.

    The USGS has assigned an estimated impact level of yellow, meaning some casualties and localized damage are estimated to be possible. The instrument intensity was recorded at 5.9. The USGS has not flagged a tsunami evaluation for this event.

    The magnitude has been reviewed by the USGS. The estimated impact level is an assessment and not a confirmed count of casualties or damage.

  2. Sep 3, 2026, 8:08 a.m. ETFirst report

    Magnitude 5.4 Earthquake Strikes Near Jiangyou, China

    A magnitude 5.4 earthquake struck 21 km west-northwest of Jiangyou, China, on September 3, 2026, according to the United States Geological Survey (USGS). The quake occurred at 11:39:41 UTC at a shallow depth of 10 km. The USGS reported an instrument intensity of 5.9 and a reviewed magnitude status.

    The USGS estimated a yellow impact level, meaning some casualties and localized damage are possible. The agency did not flag a tsunami evaluation. The event is still developing, and further information may be released as it becomes available.

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Sources

Revision history

  1. Version 13 Sept 2026, 12:10current

    First published.

  2. Version 13 Sept 2026, 12:08current

    First published.

  3. Version 13 Sept 2026, 12:18current

    First published.

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