Utah earthquakes

M4.6 earthquake 85 km E of Montello, Nevada

A magnitude 4.6 earthquake struck 85 km E of Montello, Nevada on Sun, Oct 25, 1987, 9:16 PM MST (04:16 UTC), 10 km (6 mi) below the surface.

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The earthquake

Magnitude: 4.6 (ml), light
Local time: Sun, Oct 25, 1987, 9:16 PM MST
UTC: 1987-10-26 04:16:00 UTC
Depth: 10.2 km (6.3 mi), shallow
Epicenter: 41.204° N, 113.181° W
Region: Utah
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.8 km horizontally, 0.5 km in depth
Depth from: From location
Station coverage gap: 125°
Stations used: 21

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.6 and up: 51 in the 60 days after this one and 52 in the 30 days before it.

After

Before

Earthquakes today Utah earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu50034135 (also filed as ushis4043, usp00039m4). Read Tue, Sep 22, 2026, 9:58 AM UTC.