QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000cwh7
USGS usp000cwh7
29 May 2004, 11:14
78 km NE of Heunghae, South Korea
A magnitude 5.3 mwb earthquake at 29.2 km depth.
Published location
Where is 78 km NE of Heunghae, South Korea?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
36.634000, 129.928000
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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
usp000cwh7
Coordinates
36.634, 129.928
Network
us
Significance
432