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X-WR-CALDESC:Join Wenatchee Valley Erratics for their ZOOM meeting Tuesday\
 , December 14\, 2021 at 7:00PM\, when Stephen J. Angster\, Research Scient
 ist with the USGS Earthquake Science Center\, Seattle Field Office\, will 
 present:\n\n“Paleoseismic history and hazards associated with the Wallula 
 fault zone: A new look at clastic dike features in southeast Washington”\n
 \nIn an effort to better understand seismic hazards within the Tri-cities 
 region of SE Washington and NE Oregon\, the USGS is leading an effort to c
 haracterize the paleoseismic and rupture history along the Wallula fault z
 one. In this talk\, Steve will share recent field observations and new geo
 chronologic data collected from a paleoseismic trench and roadcut exposure
  that display Holocene age liquefaction features (e.g. clastic dikes). The
 se features appear within late Pleistocene slackwater deposits of the Miss
 oula Floods (aka. Touchet Beds)\; and cap Holocene loess. Stratigraphic an
 d sedimentologic relationships along with luminesces ages of the liquefied
  sediment suggest up to four seismically-induced liquefaction events durin
 g the Holocene\, any of which were likely triggered by earthquakes sourced
  from either the Wallula fault zone and/or faults of the Yakima fold and t
 hrust belt. Additional observations and analysis along a newly discovered 
 late Holocene scarp indicate that the scarp is most-likely tectonic in ori
 gin and plausibly the surface rupture trace of the 1936 Milton-Freewater e
 arthquake.  \n\nHere’s the Zoom link: https://us02web.zoom.us/j/8273052757
 1. Sign in at 7:00 PM\, Tuesday December 14.
X-WR-RELCALID:c8cdd602fdaa0ca1dff38790c78104e5
X-WR-TIMEZONE:America/Los_Angeles
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TZID:America/Los_Angeles
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TZNAME:PST
DTSTART:20211107T020000
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
RDATE:20221106T020000
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DTSTART:20210314T020000
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RDATE:20230312T020000
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BEGIN:VEVENT
UID:bce2f071-594d-4ff6-860b-223945c91da6
DTSTAMP:20260408T085831Z
DESCRIPTION:Join Wenatchee Valley Erratics for their ZOOM meeting Tuesday\,
  December 14\, 2021 at 7:00PM\, when Stephen J. Angster\, Research Scienti
 st with the USGS Earthquake Science Center\, Seattle Field Office\, will p
 resent:\n\n“Paleoseismic history and hazards associated with the Wallula f
 ault zone: A new look at clastic dike features in southeast Washington”\n
 \nIn an effort to better understand seismic hazards within the Tri-cities 
 region of SE Washington and NE Oregon\, the USGS is leading an effort to c
 haracterize the paleoseismic and rupture history along the Wallula fault z
 one. In this talk\, Steve will share recent field observations and new geo
 chronologic data collected from a paleoseismic trench and roadcut exposure
  that display Holocene age liquefaction features (e.g. clastic dikes). The
 se features appear within late Pleistocene slackwater deposits of the Miss
 oula Floods (aka. Touchet Beds)\; and cap Holocene loess. Stratigraphic an
 d sedimentologic relationships along with luminesces ages of the liquefied
  sediment suggest up to four seismically-induced liquefaction events durin
 g the Holocene\, any of which were likely triggered by earthquakes sourced
  from either the Wallula fault zone and/or faults of the Yakima fold and t
 hrust belt. Additional observations and analysis along a newly discovered 
 late Holocene scarp indicate that the scarp is most-likely tectonic in ori
 gin and plausibly the surface rupture trace of the 1936 Milton-Freewater e
 arthquake.  \n\nHere’s the Zoom link: https://us02web.zoom.us/j/8273052757
 1. Sign in at 7:00 PM\, Tuesday December 14.
DTSTART;TZID=America/Los_Angeles:20211214T190000
DTEND;TZID=America/Los_Angeles:20211214T200000
LOCATION:https://us02web.zoom.us/j/82730527571
SUMMARY:Paleoseismic History & Hazards by Wenatchee Valley Erratics
END:VEVENT
END:VCALENDAR