United States Earthquakes, 1963

By Carl A. Von Hake and William K. Cloud, 1965, U.S. Department of Commerce, Coast and Geodetic Survey, U.S. Government Printing Office, pp. 38-39.
	WASHINGTON AND OREGON
(120th MERIDIAN OR PACIFIC STANDARD TIME)

January 24: 13:43:11.8*. Epicenter 47 degrees 23'
	north,, 122 degrees 06' west, 2 miles due west of Maple
	Valley, Wash., S.. Felt over an area of approx-
	imately 5,500 square miles of western Wash-
	ington. Maximum intensity (damage) VI.
	Damage slight. Plaster and -walls cracked at
	Maple Valley and Tacoma.
    INTENSITY (DAMAGE) VI:
      Lake Desire (about 7 1/2 miles southeast of
	Renton and about 2 miles west and 1 mile north
	of the epicenter).-Observer ran outdoors.
	Everything movable moved; refrigerator moved
	north-south; objects fell from shelves and
	table; cupboard doors opened; power pole
	swayed; trees trembled. Motion north-south.
	"This was the sharpest shock I have ever felt
	and I am familiar with earthquakes, having
	been reared in California."
      Maple Valley.-Felt by all except persons
	driving cars; frightened few in community.
	Plaster and wall cracks at grocery store; ceil-
	ing joists danced; canned goods and glassware
	fell to floor. Trees, bushes shaken moderately.,
	Rapid, 10-15 second shock; moderate earth
	noises from east heard by many.
      Tacoma.-Felt by many and frightened few
	in community. Damage slight. Plaster and
	walls cracked. Small objects and furnishings
	shifted. Rapid motion in all directions; dura-
	tion as long as 1 minute; moderate earth noises
	heard by many 1 second before shock.
    INTENSITY (DAMAGE) V: Buckley, Car-
	bonado, Fall City, Issaquah, Kenmore, Kent,
	McMillin, Orillia, Orting, Pacific, Portage,
	Preston, Renton, Snoqualmie Falls, and Tuk-
	wila.
    INTENSITY (DAMAGE) IV: Alderton, Algona,
	Baring, Black Diamond, Bremerton, Burton,
	Carnation, Cumberland, Dash Point, Des
	Moines, Dockton, Eglon, Elbe, Gig Harbor,
	Harper, Index, Indianola, Kapowsin, Kenny-
	dale, Keyport, Kirkland, Kosmos, Lester, Man-
	chester (Manchester Naval Base), Medina,
	Mercer Island, Midway, Milton, North Bend,
	Palmer, Port Orchard, Puyallup, Ravensdale,
	Redmond, Retsil, Rille, Rollingbay, Seahurst,
	Seattle, Selleck, Silverdale, Skykomish, Sno-
	qualmie, South Prairie, Spanaway, Sultan,
	Sumner, Vashon (Ellisport), Wauna, Wilkeson,
	Woodinville, and Yelm.
    INTENSITY (DAMAGE) I-III: Alder, Ameri-
	can Lake (U.S. Veterans Hospital), Ashford,
	Auburn, Burley, Centralia, Cougar, Duvall,
	Eatonville, Ellensburg, Enumclaw, Fort Steila-
	coom, Gorst, Graham, Hoodsport, Kingston, La
	Grande, Lilliwaup, Longmire, Olalla, Port
	Gamble, Roslyn, Salkum, Seabeck, South Cle
	Elum, South Colby, Southworth, Suquamish,
	Tenino, Troutlake (Trout Lake Valley), Union,
	and Vail.
January 24: 13:54. Lake Desire, Wash.
	(about 7 1/2 miles southeast of Renton). IV.
	Cupboard door rattled.
January 24: 22:35. La Grande, Wash. III.
	Slight shock reported felt with about same
	effects as the shock at 13:43:11.8*.
January 30: 05:50. Longmire, Wash. IV.
	Felt by several; awakened few. Motion slow.
March 2: 08:30*. Portland, Oreg. IV.
	Press reported a sharp earthquake, apparently
	centering in the city, rattled the Portland area.
	No damage was reported.
March 7: 15:53:25.0*. Epicenter 44.9 degrees north,
	123.5 degrees west, northwestern Oregon, west of
	Salem, W. Magnitude 4.6. Press reported the
	earthquake, described as minor, was felt from
	Portland south to Eugene, a distance of about
	110 miles, and in some coastal areas. Maxi-
	mum intensity (damage) V. Only damage
	reported was a few instances of slight plaster
	cracks and broken dishes in the west Salem
	area.
   INTENSITY (DAMAGE) V:
     Salem.-Felt by many; few alarmed. Few
	persons reported slight plaster cracks in the
	west Salem area. Trembling motion with
	rapid onset.
    INTENSITY (DAMAGE) IV: Corvallis, Elmira
	(about 10 miles west of Eugene), Eugene, and
	Junction City (about 15 miles north of Eu-
	gene).
    INTENSITY (DAMAGE) I-III: Portland.
September 5: 07:55. Swift Dam Power-
	house (about 5 1/2 miles east of Cougar, Wash.).
	One slight tremor felt.
October 22: 10:43. Swift Dam Powerhouse
	(about 5 1/2 miles east of Cougar, Wash.). Loud
	rumble heard.
December 21: 18:54:01.9*. Epicenter 48 degrees 20'
	north, . 119 degrees 20' west, about 10 miles southeast
	of Omak, Wash., S. Magnitude 4.4. Felt over
	an area of approximately 3,000 square miles
	of Okanogan County, Wash. Maximum inten-
	sity (damage) V. No damage was reported.
    INTENSITY (DAMAGE) V:
      Loomis.-Felt by all and frightened few in
	community. Windows and doors rattled; hang-
	ing objects swung. Slow, 25-second shock;
	moderate earth noises heard.
     Malott.-Felt by all. House creaked. Rapid,
	45-second shock; moderate earth noises heard
	by many 10 seconds before shock.
     Okanogan.-Felt by all. Hanging objects
	swung. Slow motion; duration 30 seconds;
	moderate earth noises heard.
     Omak.-Felt by - several. Small objects
	shifted; chair seemed to move up and down. 
	Christmas tree shaken moderately. Rapid,
	vertical, 10-15 second shock; loud earth noises
	heard by many 1-2 seconds before shock.
     Synarep.-Felt by all. Doors rattled. Mo-
	tion rapid; duration 2-3 minutes; loud earth
	noises heard by many.
    INTENSITY (DAMAGE) IV: Brewster, Carlton,
	Conconully, Mazama, Methow, Nighthawk,
	Riverside,: Twisp, Wauconda, and Winthrop.
    INTENSITY (DAMAGE) I-III: Elmer City
	(about 5 miles northeast of Coulee Dam).
December 26: 18:36:21.6*. Epicenter 45.7 degrees
	north, 123.4 degrees west, northwestern Oregon, W.
	Magnitude 4.5., Felt over an area of approxi-
	mately 4,000 square miles of northwestern
	Oregon and southwestern Washington. Maxi-
	mum intensity (damage) VI. Damage slight.
	Plaster cracked at few places.
   INTENSITY (DAMAGE) VI IN OREGON:
     North Plains.-Damage slight. Plaster
	cracked. Small objects and furnishings shifted. 
	Rapid motion.
     Tillamook-Portland Highway.-Car swayed
	and went to opposite side of highway before
	being controlled (fill section of highway).
     Timber.-Felt by all and frightened many in
	community. Damage slight. Plaster cracked.
	Small objects shifted; trees, bushes shaken
	moderately. Loud earth noises heard by many.
   INTENSITY (DAMAGE) VI IN WASHINGTON:
     Toutle.-Felt by five of six persons contacted
	by observer. Damage slight. Plaster cracked.
	Small objects shifted; books and pictures fell
	off piano. Indoor plants swayed strongly.
	INTENSITY (DAMAGE) V IN OREGON: Neha-
	lem, Rockaway, Seaside, and Warrenton.
   INTENSITY (DAMAGE) VI IN WASHINGTON:
	Longview.
   INTENSITY (DAMAGE) IV IN OREGON: Astoria,
	Brownsmead, Buxton (near, rural area), Clif-
	ton, Columbia City, Deer Island, Manzanita,
	Tolovana Park, Vernonia, Westport, and
	Wheeler.
   INTENSITY (DAMAGE) IV IN WASHINGTON:
	La Center Woodland (2 miles northeast
	of).
   INTENSITY (DAMAGE) I-III IN OREGON: Arch
	Cape, Banks, Cannon Beach, Goble, Roy,. and
	Scappoose.
   INTENSITY (DAMAGE) I-III IN WASHINGTON:
	Brush Prairie, Castle Rock, Swift Dam Power-
	house (about 5 1/2 miles east of Cougar), Under-
	wood, and Vancouver.


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