Subduction-zone stratovolcanoes, such as Mount St. Helens, Mount Etna, and Mount Pinatubo, typically erupt with explosive force: the magma is too stiff to allow easy escape of volcanic gases. As a consequence, the tremendous internal pressures of the trapped volcanic gases remain in the pasty magma.
Lynden, WA. Lynden is located in northwest Washington. Lynden is part of Whatcom County. Lynden has 5.17 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Lynden population is 12,579, which has grown 39.46% since 2000.
Lewiston is the principal city of the Lewiston, ID - Clarkston, WA Metropolitan Statistical Area, which includes all of Nez Perce County and Asotin County, Washington. As of the 2010 census, the population of Lewiston was 31,894, up from 30,904 in 2000. Lewiston is located at the confluence of the Snake River and Clearwater River, thirty miles (50 km) southeast of the Lower Granite Dam.