QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913947
USGS iscgem913947
11 Oct 1915, 19:33
120 km N of Isabela, Puerto Rico
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is 120 km N of Isabela, Puerto Rico?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
19.583000, -67.170000
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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
iscgem913947
Coordinates
19.583, -67.17
Network
iscgem
Significance
624