M3.0 earthquake 11 km N of Summit Park, Utah

A magnitude 3.0 earthquake struck 11 km N of Summit Park, Utah on Sat, May 9, 2015, 11:41 AM MDT (17:41 UTC), 12 km (7 mi) below the surface.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.95	ML, local (Richter)	University of Utah Seismograph Stations	Preferred · Final · ±0.189 · 21 stations
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.189 · 21 stations

The USGS’s account of the effects of this earthquake.

Felt (III) at Park City and Salt Lake City. Also felt at American Fork, Bountiful, Coalville, Kamas and South Jordan.

From the USGS event page for uu60110327. U.S. Geological Survey text and figures are in the public domain.

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

16 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 6 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event uu60110327 (also filed as us20002e3g). Read Sun, Oct 4, 2026, 7:06 PM UTC.