Laura Shannon¹, Stephen Solovitz², Alexa R Van Eaton³, John K Eaton⁴, Larry G Mastin⁵, Raúl Bayoán Cal⁶ and Graham Freedland⁶, (1)Battle Ground, Washington, United States, (2)Washington St. U. Vancouver, Vancouver, WA, United States, (3)USGS Cascades Volcano Observatory, Vancouver, WA, United States, (4)Stanford University, Mechanical Engineering, Stanford, CA, United States, (5)US Geological Survey Cascades Volcano Observatory, Vancouver, WA, United States, (6)Portland State University, Portland, OR, United States