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Volcanoes -- Oregon


View Resource Three Sisters, Oregon

Earlier this month, the US Geological Survey (USGS) released a report stating that USGS scientists have detected a slight uplift of the ground surface over a broad area centered 5 kilometers west of South Sister volcano in the Three Sisters region of the central Oregon Cascade Range. This uplift was detected using a relatively new technique, Satellite Radar Interferometry (InSAR). InSAR uses...