QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913138
USGS iscgem913138
4 May 1918, 07:06
87 km WSW of Hengchun, Taiwan
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is 87 km WSW of Hengchun, Taiwan?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
21.569000, 120.041000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
iscgem913138
Coordinates
21.569, 120.041
Network
iscgem
Significance
624