M1.5 earthquake 16 km SSE of Saint George, Utah

A magnitude 1.5 earthquake struck 16 km SSE of Saint George, Utah on Wed, May 27, 2020, 11:07 PM MDT (05:07 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 11 km N of Pine Valley, Utah. This one was a foreshock.

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
1.51	ML, local (Richter)	University of Utah Seismograph Stations	Preferred · Final · ±0.264 · 2 stations
1.2	ML, local (Richter)	Nevada Seismological Laboratory	Reviewed · ±0.24 · 5 stations

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: 23 in the 60 days after this one and 5 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event uu60390997 (also filed as nn00736911). Read Sat, Oct 3, 2026, 1:49 PM UTC.