Newberry Volcano, Lassen Peak, and Crater Lake. Mount Shasta and Three Sisters did not display similar patterns, but that may have been due to a lack of seismic measurements. Magma reservoirs are ...
Mount Shasta, Mount Cotopaxi, Mount Hood and Mount Rainier. – Lava domes: These domes are small masses of lava that accumulate around and over the volcano’s vent. Lava domes commonly are found ...