Many of the most dangerous volcanic mountains are stratovolcanoes (also known as composite volcanoes).

This includes Mt Taranaki as pictured above, but also Mt Rainier, Hood, St Helens in the US; Mt Fuji of Japan; Vesuvius, Etna, and Stromboli of Italy; And of course, many more!

My graduate degree focus is on stratovolcanic structure and I absolutely adore them