QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem847619
USGS iscgem847619
20 May 1966, 10:14
145 km SE of San Jose Village, Northern Mariana Islands
A magnitude 6.1 mw earthquake at 18.2 km depth.
Published location
Where is 145 km SE of San Jose Village, Northern Mariana Islands?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
13.895000, 146.396000
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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
iscgem847619
Coordinates
13.895, 146.396
Network
iscgem
Significance
565