QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usb000jgzc
USGS usb000jgzc

4 Sept 2013, 11:04

93 km S of Unalaska, Alaska

A magnitude 5 mb earthquake at 10.1 km depth.

Depth10.1 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated19 July 2023Latest timestamp stored in this record

Published location

Where is 93 km S of Unalaska, 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.

53.045500, -166.745100

Open the interactive map ↗

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.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

M 5

78 km SW of Unalaska, Alaska

M 5

129 km SSE of False Pass, Alaska

M 5

116 km ESE of Nikolski, Alaska

M 5

141 km S of False Pass, Alaska

M 5

117 km ESE of Nikolski, Alaska

M 5

149 km S of False Pass, Alaska

Catalog fields and provenance
Event ID
usb000jgzc
Coordinates
53.0455, -166.7451
Network
us
Significance
385