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Earthquake · Reviewed by USGS

M2.2 earthquake 45 km NNE of Spencer, Idaho

A magnitude 2.2 earthquake struck 45 km NNE of Spencer, Idaho at Oct 4, 2026, 18:36 UTC, at a depth of 3 km. The epicentre was 102 km (64 mi) N of Rexburg.

Details

Magnitude2.2 ml
TimeOct 4, 2026, 18:36 UTC
Depth3.2 km
Coordinates44.739, -111.964
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, Montana77 km / 48 midepth 13 km
1.146 km NW of Island Park, Idaho13 km / 8 midepth 6 km
1.030 km ESE of West Yellowstone, Montana98 km / 61 midepth 8 km
1.14 km ESE of Hebgen Lake Estates, Montana65 km / 40 midepth 12 km
2.115 km ENE of Twin Bridges, Montana98 km / 61 midepth 4 km
1.733 km NW of Lima, Montana76 km / 47 midepth 4 km
1.919 km NNE of Dillon, Montana85 km / 53 midepth 9 km
2.015 km NNE of Dillon, Montana83 km / 51 midepth 11 km
1.31 km WSW of Lima, Montana52 km / 33 midepth 9 km
1.428 km S of Ennis, Montana44 km / 27 midepth -2 km
1.04 km SSE of West Yellowstone, Montana71 km / 44 midepth 13 km
1.03 km NW of Lima, Montana53 km / 33 midepth 10 km
1.08 km NE of West Yellowstone, Montana75 km / 47 midepth 11 km
1.48 km NE of West Yellowstone, Montana75 km / 47 midepth 11 km

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