WASHINGTON AND OREGON (120th MERIDIAN OR PACIFIC STANDARD TIME January 7: 01:16:04*. Epicenter 46 degrees 45' north, 122 degrees 40' west, southwestern Washington, S. Felt over an area of approximately 3,500 square miles, principally in Lewis, Pierce, and Thurston counties. Also felt at Portland, Oreg. Maximum intensity (damage) V. INTENSITY (DAMAGE) V: Alder.-Felt by and awakened many in com- munity; frightened few. Windows rattled. Rapid, 1-minute shock; loud earth noises heard by many. Eatonville.-Felt by, awakened, and frightened many in community; felt outdoors by some. Windows, doors, and dishes rattled. Rapid, east-west shock; loud earth noises from east- west heard by many. Elbe.-Awakened many and frightened few in community. Small objects shifted. La Grande.-Awakened all in home. Win- dows rattled. Sudden, sharp blastlike noise; observer thought furnace had exploded. McKenna.-Felt by and awakened many; frightened few. Windows, doors, and dishes rattled; house creaked. Olympia.-Press reported many were awak- ened; few frightened. Jail cell bunks shaken. Rainier.-Awakened all in home. Walls creaked. Rapid, 1-minute motion; loud earth noises heard. Tenino.-Felt by and awakened many in com- munity. Rapid motion; loud earth noises heard by many. Tono (7 miles west of epicenter).-Old burned- out coal mine collapsed, causing ground to sink over a considerable area. Tumwater.-Felt by, awakened, and frightened many. Windows, doors, and dishes rattled. Rapid, 2-minute motion. Vail (about 5 to 6 miles north of epicenter).- Awakened many. Loud earth noises heard by many. INTENSITY (DAMAGE) IV: Adna (8 miles west of Chehalis), Alderton, Ashford, Buckley, Buc- oda, Centralia, Chehalis, Cinebar, Curtis, Ethel, Grays River, Issaquah, Kapowsin, McMillin, Mineral, Morton, Mossyrock, Napavine, Olym- pia (4 miles south of), Orting, Pe Ell, Randle, Rochester, Roy, Riffe, and Wilkeson. INTENSITY (DAMAGE) I TO III: American Lake (V.A. Hospital), Anderson Island, Carbonado, Fort Steilacoom, Glenoma, La Center, Lakebay, Littlerock, Mayfield, and Sumner. INTENSITY (DAMAGE) I TO III IN OREGON: Portland. April 10: 22:47:35*. Epicenter 47 degrees 34' north, 122 degrees 15' west, about 5 miles southeast of Seattle city center, S. Felt over an area of approxi- mately 600 square miles of western Washington, principally in western King County. Maximum intensity (damage) VI at Seattle, where slight damage was reported. INTENSITY (DAMAGE) VI: Seattle.-Felt by and awakened many in com- munity; frightened few. Concrete basement wall cracked; 15-foot section of wood retaining wall broken; top on cabinet-type oil burner tipped and loosened, bearing dislodged in furnace motor. One report of plaster cracking. Small objects shifted. Woman said she was jolted from bed. Most persons reported their homes shook, dishes rattled, chandeliers swayed, and furniture moved. INTENSITY (DAMAGE) V: Bremerton, Burien, Houghton, Orillia, Redmond, and Tukwila. INTENSITY (DAMAGE) IV: Bothell, Des Moines, Eagledale (Port Blakely), Issaquah, Kenmore, Kirkland, Manchester, Medina, Mercer Island, Milton, Pacific, Port Orchard, Renton, Richmond Beach, Seattle Heights, and Woodinville. INTENSITY (DAMAGE) I TO III: Auburn, Belle- vue, Duvall, Kennydale, Kingston, Longmire, Maple Valley, Monroe, Portage, Preston, Re- dondo, Seahurst, and Silverdale. May 10: 19:05*. Epicenter about 7 miles west of Longmire, Wash., S. Nisqually entrance to Mount Rainier National Park (about 6 miles southwest of Longmire). IV. Windows rattled. Felt by several at Longmire; rapid, 5-second mo- tion; faint earth noises from west heard. June 16: 02:32:45*. Epicenter a very few miles southwest of Longmire, Wash., S. Long- mire. IV. Felt by several; awakened all on second floor of home. Loud earth noises heard a few seconds before shock; rapid, 2-second motion. September 10: 07:06:34*. Epicenter 47 degrees 42' north, 123 degrees 09' west, upper Duckabush River, near boundary between Olympic National Park and Olympic National Forest, S. Felt over an area of approximately 14,000 square miles of northwestern Washington. (See map, p. 29.) Maximum intensity (damage) VI. At Bremer- ton, concrete basement cracked; plaster cracked at Seattle.
INTENSITY (DAMAGE) VI: Bremerton.-Felt by many; frightened few. Concrete basement floor and walls cracked in many places. Small objects shifted and over- turned; knickknacks fell. Motion east-west, circular, rocking and rolling. Woman became dizzy and nauseated. Seattle.-Felt by many; awakened and fright- ened few. Considerable plaster cracking at one place (one crack entirely across living room ceil- ing); small painted-over plaster cracks slightly reopened at one place; window partly out of frame at another place. East-west door swung north- south; north-south oriented objects, such as beds and doors shaken strongly; hanging pictures swung north-,-south. INTENSITY (DAMAGE) V: Alder, Annapolis, Arlington, Auburn, Bainbridge Island, Baring, Belfair, Blanchard, Burton, Cedar Falls, Chima- cum, Clinton, Duvall, Eastsound, East Stanwood, Edison, Everett, Freeland, Gorst, Granite Falls, Grotto, Hansville, Hoodsport (Staircase Ranger Station, about 12 miles northwest of Hoodsport), Houghton, Kenmore, Le Grande, Lowell, Lyman, Medina, Mount Vernon (Big Lake area), North Bend, Orillia, Pinehurst, Port Gamble, Port Ludlow, Port Orchard, Preston, Richmond Beach, Rockport, Snohomish, Snoqualmie and Snoqualmie Falls, Sultan, Sumner, and Tracyton. INTENSITY (DAMAGE) IV: Alderton, Alderwood Manor, American Lake (V.A. Hospital), Bothell, Brinnon, Buckley, Carbonado, Clallam Bay, Clearview, Clipper, Concrete, Darrington, Dash Point, Edmonds (Five Corners), Elbe, Elwha Ranger Station (Olympic National Park), Fall City, Friday Harbor, Gardiner, Gold Bar, Green- bank, Harper, Hoodsport, Hoquiam, Hyak, Index, Issaquah, Joyce, Newport, Kingston, Kirkland, La Conner, Lake Crescent, Lake Stevens, Lakewood, Leavenworth, Lester, Lil- liwaup, Lopez, Lost Lake (about 10 miles south- west of Shelton), Lynden, McMillin, Malone, Maple Valley, Marblemount, Marysville, Mat- lock, Mercer Island, Midway, Milton, Monroe, Morton, Mukilteo (vicinity of), Nordland, North Bend (9, 15, and 18 miles east of), Oak Harbor (1 mile west of), Oakville, Olalla, Olympia (3 miles west of, and 4 miles south of), Pacific, Portage, Porter, Potlatch, Poulsbo, Puyallup, Quilcene, Quinault Ranger Station (about 10 miles northeast of Quinault), Raymond, Red- mond, Redondo, Ronald, Roslyn, Roy, Seabeck, Seattle Heights, Sekiu, Selleck, Silvana, Skyko- mish, South Colby, South Prairie, Southworth, Startup, Sumas, Suquamish, Sylvan (Fox Island), Tacoma, Tahuya, Union, Wauna, Wickersham and vicinity, and Woodinville. INTENSITY (DAMAGE) I TO III: Aberdeen, Anderson Island, Bellingham, Black Diamond, Burien, Burlington, Coupeville, Deming, Des Moines, Dockton, Eglon, Ellensburg, Enumclaw, Everson, Indianola, Kapowsin, Kennydale, Kent, Lakebay, Lakeview, Lynnwood, McCleary, Man- chester, Montesano, Neilton, Nooksack, Orting, Oso, Palmer, Port Angeles, Port Townsend, Ravensdale, Retsil, Seahurst, Sequim, Shelton, Solduc Hot Springs area, South Bend, Stanwood, Vashon, Wilkerson, and Zenith. INTENSITY (DAMAGE) I TO III IN OREGON: Warrenton (near Astoria). November 8: 03:36:27.2*. Epicenter 45.1 degrees north, 125.2 degrees west, about 50 miles off coast of Oregon, W. Reported felt with moderate in- tensity at scattered communities along the coastal areas of Washington and Oregon, from Aberdeen and Montesano, Grays Harbor County, Wash., south to Yachats, Lincoln County, Oreg., a distance of approximately 185 miles. In Oregon, it was felt inland to distances of about 35 miles. Maximum intensity (damage) IV. INTENSITY (DAMAGE) IV IN OREGON: Agate Beach, Alpine, Alsea, Buxton, Nashville, New- port, Rockaway, Tidewater, Toledo, and Yachats. INTENSITY (DAMAGE) IV IN WASHINGTON: waco and Long Beach. INTENSITY (DAMAGE) I TO III IN OREGON: Can- non Beach, Corvallis, Depoe Bay, Hammond, and Umpqua. INTENSITY (DAMAGE) I TO III IN WASHINGTON: Aberdeen and Montesano.
UW Dept. of Earth and Space Sciences ..... . PNW EARTHQUAKES