Mt St Helens Activity 2024 Dates. All volcanoes in the cascade range of oregon and washington are at normal background activity levels. Over 95% of the earthquakes have been less than magnitude 1.0 and are too small to be felt at the surface.
Mount st helens national volcanic monument has collaborated with teachers to design activities that meet specific washington state essential academic learning. Mount saint helens, volcanic peak in the cascade range, southwestern washington, u.s.