QQuakeFacts
USGS us2000a68x

9 Aug 2017, 06:40

61 km SSW of Nikolski, Alaska

A magnitude 5.5 mww earthquake at 29 km depth.

Depth29 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated9 August 2023Latest timestamp stored in this record

Published location

Where is 61 km SSW of Nikolski, Alaska?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

52.402300, -169.049600

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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
us2000a68x
Coordinates
52.4023, -169.0496
Network
us
Significance
465