Robuta

https://www.usgs.gov/volcanoes/newberry/science/earthquake-hazards-newberry-volcano Earthquake Hazards at Newberry Volcano | U.S. Geological Survey Earthquakes are rare in the region but could accompany both the gradual spreading of the region east of the Cascades crest (associated with Basin and Range... newberry volcanou searthquakehazardsgeological https://www.usgs.gov/media/images/ash-flow-tuff-outcrop-nw-flanks-newberry-volcano-or-was Ash-flow tuff outcrop on the NW flanks of Newberry Volcano, OR, was... | U.S. Geological Survey Weathering has eroded the deposit into rounded mounds. Hammer hanging from outcrop in foreground is present for scale.