QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000c1lj
USGS us1000c1lj
7 Jan 2018, 00:42
Mariana Islands region
A magnitude 5.1 mb earthquake at 10 km depth.
Published location
Where is Mariana Islands region?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
18.856500, 147.071400
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us1000c1lj
Coordinates
18.8565, 147.0714
Network
us
Significance
400