GLENWOOD SPRINGS – Two mild earthquakes struck western Colorado early Tuesday but likely weren’t strong enough to cause any damage.

The quakes were both just north of Glenwood Springs. The U.S. Geological Survey says a 3.4 quake struck at 3:02 a.m. The second, a 3.6 quake, came at 4:13 a.m.

People in Glenwood Springs, New Castle and Gypsum reported feeling the quake.

The USGS says earthquakes of this intensity cause vibrations similar to the passing of a truck and would be very noticeable to people indoors, especially on upper floors.