MALONE, Stephen D. Mount St. Helens, the 1980 Re-awakening and Continuing Seismic Activity. Geoscience Canada, [S. l.], v. 17, n. 3, 1990. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/3667. Acesso em: 23 apr. 2024.