Seaside, Oregon Harry Yeh Oregon State University Seaside, Oregon, Tsunami Pilot Study – Modernization of FEMA Flood Hazard Maps A Tsunami Pilot Study was carried out in the Seaside area to develop a Tsunami Hazard Analysis methodology as part of FEMA's Map Modernization Program.
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Oregon State University
Potential Tsunami Sources FEMA Flood Hazard Maps
Examples of co-seismic vertical sea floor displacement FEMA Flood Hazard Maps
Tsunami sources of Cascadia Subduction Earthquake
Discovery of Great Cascadia FEMA Flood Hazard Maps
Earthquake on January 26, 1700
Paleo-tsunami deposits FEMA Flood Hazard Maps
At Willapa Bay, Washington
Old Japanese Documents
on Coastal Flooding on January 1700
The 1964 FEMA Flood Hazard MapsGreat Alaskan Tsunami Inundation in Seaside
Tsunami Deposits found in Seaside FEMA Flood Hazard Maps
Map of 100- and 500-year flood zones overlaid on FEMA Flood Insurance Rate Maps.
Seaward limit is mean lower low water.
Line showing extent of deposits from tsunami generated by 1700 Cascadia earthquake is included for comparison.
Evacuation distance to high-ground safe haven from the beach is approximately 2 km.
Nishiki Tower in Japan
Demonstration of the effectiveness of tsunami shelters Insurance Rate Maps.
Two Tsunami Shelters
Existing well-engineered reinforced concrete structures might be used as shelters