(Upper) Map view of earthquakes (circles) near Mount Hood between 1980 and May 16, 2016 from the Pacific Northwest Seismic Network. Earthquakes are sized based on their magnitude. Only earthquakes with 6 or more phase picks, a gap between seismic station observations of less than 150 degrees and a station within 5 km of the epicenter. Red triangles are permanent seismic stations as of 2016.
(Lower) East-West cross-section view of earthquakes plotted in map view.