M1.5 earthquake 46 km SSE of Mammoth, Wyoming

A magnitude 1.5 earthquake struck 46 km SSE of Mammoth, Wyoming on Tue, Feb 19, 2019, 5:14 PM MST (00:14 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.3 35 km SSW of Silver Gate, Montana. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 16 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event uu60313387. Read Sat, Oct 3, 2026, 5:17 PM UTC.