1-1-1-1-1-1-1-1-1-1-1-1-1-1 From: "Poland, Michael P" <mpoland@xxxxxxxx> Dear Colleagues, The Yellowstone Volcano Observatory 2021 annual report has been published and is available online! The report describes geologic activity during the past year -- like numbers/locations of earthquakes, trends in ground deformation, gas and thermal emissions, and noteworthy geyser eruptions. In addition, the report discusses research efforts and results, including sediment coring and other studies in Yellowstone Lake, investigations of hydrothermal explosion craters, and geologic mapping of areas across the Yellowstone region. You can download the report from https://urldefense.com/v3/__https://pubs.er.usgs.gov/publication/cir1494__;!!IKRxdwAv5BmarQ!aBWSdoCirrUCCtrUD9lpkbgqzc65EiAZaLiQkj3CTIy_Bc-8bhmceWYV5nfPuKD03jS1LdSwG1gcXXdI$ <https://urldefense.com/v3/__https://pubs.er.usgs.gov/publication/cir1494__;!!IKRxdwAv5BmarQ!bBXNtYoOKz7RkrQSNIMz0qTWj11AIm5qYDjr0s160VArU2g3oxH9SBoZ9yWP1USmoEXsPEOfXRLN6Fl9$> . Yellowstone Volcano Observatory annual reports are also available for the years 2017, 2018, 2019, and 2020. 1-1-1-1-1-1-1-1-1-1-1-1-1-1 ------------------------------
