PNW Earthquake Science Workshop

November 5, 2019

Program

9:00-9:10 Welcoming Remarks (Brian Sherrod)

9:10-10:00 Faults on the Move in the PNW (Renate Hartog, moderator)

• (20 minutes) Controls on seismogenesis in Cascadia (Michael Bostock)
• (20 minutes) Recurrence and fault slip (Rob Witter)
• (10 minutes) Discussion

10:00-10:15 Break

10:15-11:05 Faults on the Move in the PNW (Evan Solomon, moderator)

• (20 minutes) Slow slip (Noel Bartlow)
• (20 minutes) Ground motions and seismic hazard (Erin Wirth)
• (10 minutes) Discussion

11:05-11:50 Lightning Talks (3-min each; Lydia Staisch and Ian Stone, moderators)

• Prehistoric, headwater-basin-encompassing debris-avalanche landslides, Northern California (Harvey Kelsey)
• The seismic expression of hydration in the crust and mantle of the Cascadia margin (Jonathan Delph)
• Utility of Using Gravity Data to Map Active Faults in Washington (Megan Anderson)
• Fragile features as megathrust ground motion intensity constraints (Devin Phillips)
• Pleistocene terraces above the Cascadia Subducton Zone (Kelsay Stanton)
• Historic southern Cascadia quakes and sedimentological evidence of NSAF triggering (Chris Goldfinger)
• A 5-year CMHRP project focused on subduction zone marine geohazards (Janet Watt)
• Sedimentary Processes of Astoria Canyon (Jenna Hill)
• Astoria Canyon:Modern sediment flux (Andrea Ogston)
• A Database and Working Group for Cascadia Earthquake Research (Maureen Walton)
• Applications of Borehole Strain data to Pacific Northwest Earthquake Research (Evelyn Roeloffs)

11:50-1:00 Lunch

1:00-1:30 Lightning Talks (3-min each)

• Seismic enigmata (Paul Bodin)
• Visualization on Shaky Ground? (Max Schneider)
• Regional ground-motion amplification effects in the Pacific NW? (Morgan Moschetti)
• Topographic response to ground motion from modeled Seattle Fault earthquakes (Ian Stone)
• Site Amplification, Basin Effects, and Source Parameters of Earthquakes in the Portland, Oregon Region (Art Frankel)
• Planning the Modeling Collaboratory for Subduction Zone Science (Gabe Lotto)
• The Cascadia subduction zone introduced a whole new ballgame for Earthquake Hazards here in the PNW (James Bela)
• Seismic surface wave anisotropy in the PNW (Fred Pollitz)

1:30-2:30 Complexity and Cascading Hazards (Alexandre Plourde, moderator)

• (20 minutes) Tsunami generation, propagation and impacts (Breanyn Macinnes)
• (20 minutes) Ground failure (Alex Grant)
• (20 minutes) Lessons from recent earthquakes elsewhere (Yajing Liu)

2:30 -3:30 Posters

3:30-4:00 The Science behind Onshore and Offshore Monitoring (Erik Fredrickson, moderator)

• (15 minutes) Earthquake early warning science (Jeff McGuire)
• (15 minutes) Actual and aspirational offshore geodesy (William Wilcock)

4:00-4:30 Cascadia's Improving Image in Time & Space: Current & Future Experiments (Tina Dura, moderator)

• (10 minutes) 2019 Seattle basin and fault studies (Natasha Toghramadjian)
• (10 minutes) 2020 Langseth and piggy-back deployments (Juan Pablo Canales))
• (10 minutes) High-resolution dating ( Jessie Pearl)

4:30-5:00 Future Foci and Frontiers Discussion (Kelin Wang and Danny Brothers, moderators)

5:00-6:00 Posters

Scribes: Jakir Hossen and Harvey Kelsey (morning), Evelyn Roeloffs and Morgan Moschetti (afternoon)