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Delivering official volcano updates and info. Tweets do not = endorsement (Contact: https://t.co/piV6jH4OpG)
Jan 31, 2022 • 6 tweets • 4 min read
#CVO researchers detect subtle increase in the rate of uplift, 3 mi west of #SouthSister volcano, of #ThreeSisters in central Oregon. Episodes uplift observed in this area before. Volcano status unchanged.  1/6 volcanoes.usgs.gov/hans2/view/not… Between June 2020-Aug 2021, #satellite data show uplift of ~0.9 in (about the width of your thumb) over a broad area 12 mi in diameter, west of South Sister. On-the-ground GPS monitoring confirms, detecting ~0.2 in of uplift since Aug 2021. #ThreeSisters 2/6