QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/official19120608064900000
USGS official19120608064900000

8 Jun 1912, 06:49

Event 35 Novarupta-Mount Katmai area, Alaska Peninsula

A magnitude 6.3 ms earthquake at 0 km depth.

Depth0 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated30 September 2025Latest timestamp stored in this record

Published location

Where is Event 35 Novarupta-Mount Katmai area, Alaska Peninsula?

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

58.300000, -155.000000

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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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Continue exploring

Nearby events with a similar magnitude

M 6.3

Event 18 Novarupta-Mount Katmai area, Alaska Peninsula

M 6.31

Event 17 Novarupta-Mount Katmai area, Alaska Peninsula

M 6.25

37 km NNW of Aleneva, Alaska

M 6.25

70 km E of Port Alsworth, Alaska

M 6.2

Event 38 Novarupta-Mount Katmai area, Alaska Peninsula

M 6.2

Event 50 Novarupta-Mount Katmai area, Alaska Peninsula

Catalog fields and provenance
Event ID
official19120608064900000
Coordinates
58.3, -155
Network
official
Significance
611