At breaks in the earths crust; like the tectonic plates; an earthquake can trigger a volcano, and depending on what kind of volcano it is, it can form a mountain.
Mountains Beyond Mountains was created in 2004.
Hoggar Mountains was created in 1987.
When I Was Young in the Mountains was created in 1982.
The Roots of the Mountains was created in 1889.
When the Mountains Tremble was created in 1983.
East of the Mountains was created in 1999.
Prisoner of the Mountains was created in 1996.
Daughter of the Mountains was created in 1948.
The Great Mountains was created in 1933.
Above the Mountains was created in 1992.
Šar Mountains was created in 1986.
Mountains O'Mourne was created in 1938.