QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usc000tbfq
USGS usc000tbfq

3 Jan 2015, 17:44

9 km E of Challis, Idaho

A magnitude 5 mww earthquake at 8.5 km depth.

Depth8.5 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated7 August 2022Latest timestamp stored in this record

Published location

Where is 9 km E of Challis, Idaho?

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

44.507400, -114.112000

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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

M 5

15 km S of Lincoln, Montana

M 5.6

16 km N of Dillon, Montana

M 5.8

11 km SE of Lincoln, Montana

M 6.5

Stanley, Idaho

M 6.9

The 1983 Borah Peak Earthquake, Idaho

Catalog fields and provenance
Event ID
usc000tbfq
Coordinates
44.5074, -114.112
Network
us
Significance
680