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USGS ak0219nejm3h

29 Jul 2021, 07:19

106 km SSE of Perryville, Alaska

A magnitude 5.5 ml earthquake at 18.4 km depth.

Depth18.4 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 106 km SSE of Perryville, 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.

55.101600, -158.237300

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

33 km NE of Chignik, Alaska

83 km ESE of Sand Point, Alaska

71 km SSE of King Cove, Alaska

227 km S of Sand Point, Alaska

73 km S of Ivanof Bay, Alaska

46 km SSE of Sand Point, Alaska

Catalog fields and provenance

Event ID

ak0219nejm3h

Coordinates

55.1016, -158.2373

Network

ak

Significance

466