Seaside, Oregon, Tsunami Pilot Study—Modernization of FEMA Flood Hazard Maps: GIS Data

data layer: exrate002td480, exrate002td560

Effect of mean inter-event time for Cascadia subduction zone earthquakes on probabilistic tsunami hazard analysis (PTHA) 500-year tsunami map (Tsunami Pilot Study Working Group, 2006).

A, Map using a mean inter-event time less than 500 years (477 years).

500-year tsunami map based on mean inter-event time of 477 years

B, Map using a mean inter-event time of 610 years.

500-year tsunami map based on mean inter-event time of 610 years

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubsdata.usgs.gov/pubs/ds/2006/236/figures/evt_time.shtml
Page Contact Information: Florence L. Wong
Page Last Modified: Monday, 28-Nov-2016 12:02:13 EST(flw)