Tsunami Regulatory Maps (Oregon Senate Bill 379) for the State of Oregon


Tsunami regulatory maps are the official State maps for implementation of Oregon Revised Statutes (ORS) 455.446 and 455.447, limiting, through the Oregon Building Code, construction of certain critical and essential facilities in the tsunami inundation zone. They show a single tsunami inundation line on U.S. Geological Survey topographic maps. These statutes were enacted in 1995 as a result of Oregon Senate Bill 379; the regulatory maps are thus sometimes referred to as “SB 379 maps.”

These regulatory maps are not intended for emergency evacuation purposes and do not necessarily represent tsunami inundation from a worst-case event. They show the best estimate of tsunami inundation from a typical or most likely tsunami originating from earthquakes on the Cascadia subduction zone fault. This fault is located on the seafloor near the Oregon coast. The regulatory maps are based on scientific knowledge available in 1995.

For more information on how these maps were constructed, read Explanation of Mapping Methods and Use of the Tsunami Hazard Maps of the Oregon Coast, DOGAMI Open-File Report 95-67, by George R. Priest, 1995.

For more information on the regulations, contact your local Building Code official and read Development in Oregon's tsunami inundation zone: Information guide for developers and local government, DOGAMI Open-File Report 03-05, by D. L. Olmstead, 2003.

This map list (PDFs) runs north to south along the Oregon coast.
95-09-Warrenton 95-23-Nestucca Bay 95-37-Florence 95-53-Floras Lake
95-10-Astoria 95-24-Neskowin 95-38-Tahkenitch Creek 95-54-Langlois
95-11-Cathlamet Bay 95-25-Lincoln City 97-31-Winchester Bay 95-55-Cape Blanco
95-12-Knappa 95-26-Devils Lake 97-32-Reedsport 95-56-Sixes
95-13-Gearhart 95-27-Depoe Bay 95-43-Lakeside 95-57-Port Orford
95-14-Olney 95-28-Newport North 95-44-Empire 95-58-Ophir
95-15-Tillamook Head 95-29-Newport South 95-45-North Bend 95-59-Gold Beach
95-16-Arch Cape 95-30-Toledo South 95-46-Cape Arago 95-60-Signal Buttes
95-17-Nehalem 95-31-Waldport 95-47-Charleston 95-61-Cape Sebastian
95-18-Garibaldi 95-32-Tidewater 95-48-Coos Bay 95-62-Sundown Mountain
95-19-Kilchis River 95-33-Yachats 95-49-Bullards 95-63-Mack Point
95-20-Netarts 95-34-Heceta Head 95-50-Riverton 95-64-Carpenterville
95-21-Tillamook 95-35-Mercer Lake 95-51-Bandon 95-65-Brookings
95-22-Sand Lake 95-36-Goose Pasture 95-52-Bill Peak 95-66-Mt. Emily
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  • Coastal Field Office
    P.O. Box 1033
    Newport, OR 97365
    Phone: 541-819-9023
    email us at DOGAMI