BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Geophysics Seminar: Dr. Keith D. Koper  &quot\;Forensic Seismo
 logy in the Intermountain West of the U.S.&quot\;
X-WR-TIMEZONE:Pacific Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260714T134144Z
UID:tag:localist.com\,2008:EventInstance_40081753391589
DTSTART:20220602T190000Z
DTEND:20220602T200000Z
DESCRIPTION:Dr. Keith D. Koper\nDepartment of Geology and Geophysics\, Univ
 ersity of Utah\nTitle: Forensic Seismology in the Intermountain West of th
 e U.S.\n\nThe Intermountain Seismic Belt (ISB) in the western U.S. is a no
 rth-south trending band of mostly normal and strike-slip faulting earthqua
 kes that stretches from northern Arizona through Utah\, Wyoming\, Idaho\, 
 and Montana. It has moderate-to-low strain rates and reflects an extension
 al stress regime associated with the broad zone of deformation between the
  Pacific and North America tectonic plates. Major ISB earthquakes in the i
 nstrumental era include an M6.6 in Hansel Valley\, UT\, in 1934\, an M7.5 
 in Hebgen Lake\, MO\, in 1959\, and an M7.3 near Borah Peak\, Idaho\, in 1
 983. Owing to the high seismic hazard\, the ISB has been seismically monit
 ored for decades. Currently\, there are ~600 permanent seismograph station
 s in the ISB\, operated and maintained by ~25 distinct networks representi
 ng universities\, state agencies\, and federal agencies. The large\, dense
  monitoring system leads to a wide range of seismic sources being recorded
 \, including tectonic earthquakes\, volcanic earthquakes\, mine blasts\, m
 ine collapses\, and military explosions\, as well as earthquakes induced b
 y the injection of high-pressure fluid into the subsurface and underground
  coal mining. Here I discuss the methods we use to distinguish tectonic ea
 rthquakes from other seismic sources\, with implications for the monitorin
 g of nuclear test ban treaties.\n\nOn Zoom: Join from PC\, Mac\, Linux\, i
 OS or Android: \nhttps://stanford.zoom.us/j/95278282329?pwd=ZE5DUlRtdTR6Wn
 pmSDh4S0ZoZzlTUT09\nPassword: 314159
LOCATION:Zoom
SUMMARY:Geophysics Seminar: Dr. Keith D. Koper  &quot\;Forensic Seismology 
 in the Intermountain West of the U.S.&quot\;
URL;VALUE=URI:https://events.stanford.edu/event/geophysics_seminar_dr_keith
 _d_koper_quotforensic_seismology_in_the_intermountain_west_of_the_usquot
CATEGORIES:Lecture/Presentation/Talk
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