BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Missouri State University/Calendar of Events//EN CALSCALE:GREGORIAN X-WR-TIMEZONE:America/Chicago BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT TZOFFSETFROM:-0600 TZOFFSETTO:-0500 DTSTART:20070311T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU TZNAME:CDT END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0500 TZOFFSETTO:-0600 DTSTART:20071104T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU TZNAME:CST END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:9b38ba96-ae4c-46e4-b393-ffdbbc3159bf.232322@calendar.missouristate.edu CREATED:20231106T231101Z LAST-MODIFIED:20231106T231101Z LOCATION:Roy Blunt Hall 345 SUMMARY:SEES Seminar: "Fire and Ice: Monitoring Volcanic Eruptions and Mas s Movements in Alaska with Infrasound" DESCRIPTION:MSU alumnus Dr. John Lyons\, BS Geology-2002\, will join us fr om Anchorage\, Alaska\, where he is currently a volcano geophysicist at t he USGS Alaska Volcano Observatory. His presentation will discuss how eru pting volcanoes produce low-frequency sound (or infrasound) when they dis turb the atmosphere. Volcanologists use these signals to monitor and stud y volcanic activity.\n\n\nAlaska has more than 50 volcanoes spread over t he 2\,500 km Aleutian Arc with historical activity which presents unique monitoring challenges to the U.S. Geological Survey\, Alaska Volcano Obse rvatory (AVO). Infrasound from energetic volcanic eruptions can propagate hundreds of kilometers from the source and be recorded on sensitive micr ophones\, providing a powerful tool to detect and monitor activity remote ly. Recent improvements in instrumentation and data processing have led t o rapid growth and modernization of the infrasound network in Alaska\, le ading to some surprising and exciting discoveries about how volcanoes gen erate infrasound. Here he will provide an overview of how volcanoes produ ce infrasound and how AVO uses infrasound signals to detect\, monitor\, a nd study volcanic eruptions with highlights from recent activity. Example s will include efforts to apply lessons learned from volcano monitoring t o large\, potential tsunamigenic landslides.  X-ALT-DESC;FMTTYPE=text/html:<html><head><title></title></head><body><p>MS U alumnus <a href="https://www.usgs.gov/staff-profiles/john-lyons">Dr. Jo hn Lyons</a>\, BS Geology-2002\, will join us from Anchorage\, Alaska\, w here he is currently a volcano geophysicist at the USGS Alaska Volcano Ob servatory. His presentation will discuss how erupting volcanoes produce l ow-frequency sound (or infrasound) when they disturb the atmosphere. Volc anologists use these signals to monitor and study volcanic activity.</p>\ n<p>Alaska has more than 50 volcanoes spread over the 2\,500 km Aleutian Arc with historical activity which presents unique monitoring challenges to the U.S. Geological Survey\, Alaska Volcano Observatory (AVO). Infraso und from energetic volcanic eruptions can propagate hundreds of kilometer s from the source and be recorded on sensitive microphones\, providing a powerful tool to detect and monitor activity remotely. Recent improvement s in instrumentation and data processing have led to rapid growth and mod ernization of the infrasound network in Alaska\, leading to some surprisi ng and exciting discoveries about how volcanoes generate infrasound. Here he will provide an overview of how volcanoes produce infrasound and how AVO uses infrasound signals to detect\, monitor\, and study volcanic erup tions with highlights from recent activity. Examples will include efforts to apply lessons learned from volcano monitoring to large\, potential ts unamigenic landslides.&nbsp\;</p></body></html> DTSTART;TZID=America/Chicago:20231117T143000 DTEND;TZID=America/Chicago:20231117T153000 SEQUENCE:2 URL:http://www.geosciences.missouristate.edu CATEGORIES:Public,Alumni,Current Students,Faculty,Future Students END:VEVENT END:VCALENDAR