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Earthquake · Reviewed by USGS

M1.1 earthquake 46 km NW of Island Park, Idaho

A magnitude 1.1 earthquake struck 46 km NW of Island Park, Idaho at Oct 20, 2026, 10:12 UTC, at a depth of 6 km. The epicentre was 99 km (61 mi) N of Rexburg.

Details

Magnitude1.1 ml
TimeOct 20, 2026, 10:12 UTC
Depth6.1 km
Coordinates44.713, -111.802
Felt reports0
Tsunami flagNone
SourceUSGS event page
Fig. 1The epicentre and other earthquakes within 100 km, since the day before

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
MagnitudeLocationDistanceDepthTime
1.08 km SE of Big Sky, Montana71 km / 44 midepth 13 km
1.135 km ESE of West Yellowstone, Montana90 km / 56 midepth 6 km

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.