QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0009gyc
USGS usp0009gyc
1 Nov 1999, 17:53
66 km S of Hualien City, Taiwan
A magnitude 6.3 mwc earthquake at 33 km depth.
Published location
Where is 66 km S of Hualien City, 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.
23.378000, 121.520000
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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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Catalog fields and provenance
Event ID
usp0009gyc
Coordinates
23.378, 121.52
Network
us
Significance
611