QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem907025
USGS iscgem907025
21 Sept 1931, 11:27
250 km E of Wenchang, China
A magnitude 6.7 mw earthquake at 25 km depth.
Published location
Where is 250 km E of Wenchang, China?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
19.421000, 113.124000
Open the interactive map ↗Map data © OpenStreetMap contributors
What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Catalog fields and provenance
Event ID
iscgem907025
Coordinates
19.421, 113.124
Network
iscgem
Significance
686