United States Earthquakes, 1940

By N.H. Heck and R.R. Bodle, 1942, U.S. Department of Commerce, Coast and Geodetic Survey, Serial Number 647, U.S. Government Printing Office, pp. 30-32.
Reissued in: United States Earthquakes 1936-1940, 1969, U.S. Department of Commerce, Coast and Geodetic Survey, Reissued by National Earthquake Information Center, U.S. Government Printing Office.
WASHINGTON AND OREGON
[120TH MERIDIAN OR PACIFIC STANDARD TIME]

NOTE.-More details will be found in Abstracts of Earthquake Reports
for the Pacific Coast and Western Mountain Region.

January 5: 24: 00 (about). Ephrata, Wash. Weak.
March 23: 15: 30 (about). Puyallup, Wash. Moderate shock disturbed objects
	and swung chandeliers.
March 23: 19: 04. Mount Rainier area, Washington. Rather widely felt shock
	did not exceed IV at any point. Strongest at Cle Elum, Enumclaw, Hyak, Long-
	mire, North Bend, Palmer, and Sumner. Also felt at Buckley, Cashmere, Chelan,
	Elbe, National, Olympia, Omak, Packwood, Renton, Seattle, and Shelton.
     Not felt at Ariel, Centralia, Ellensburg, Elma, Ephrata, Greenacres, Lucerne,
	Moses Lake, Okanogan, Orondo, Puyallup, Prosser, Quincy, Republic, Seattle,
	Skykomish, Sunnyside, Tacoma, Tonasket, Toppenish, Wapato, Waterville, Wenatchee, and Yale.
March 21: 10: 00 (about). Hyak, Wash. Weak aftershock.
April 25: 10: 02 and 10: 11. Seattle, Wash. Two light shocks.
May 25: 8: 02. Oregon west coast (Lincoln County). At Waldport small ob-
	jects and furnishings were moved. Also felt at Toledo, De Poe Bay, and
	Nashville.
October 27: 14: 30 (about). Puget Sound region, Washington. Intensity V earthquake
	felt over a land area of about 12,000 square miles in the area draining
	into Puget Sound. The maximum intensity was reported from various places
	extending from Bellingham south to Seattle. No structural damage was reported.
	The questionnaire coverage was made jointly by tile Seismological Field Survey
	and Dr. Harold E. Culver, head of the department of geology, Washington State
	College, collaborator in seismology for the State of Washington. The shock
	to be strongest in the Port Angeles-Port Townsend-Everett area.
	All places listed below are in Washington unless otherwise stated.
  INTENSITY V:
  Bellingham.-Small objects moved.
  Big Four.-Visible swaying of flagpole, trees, and buildings. Small objects
	  disturbed. Small landslide reported in Big Four Mountains.
  Brinnon-Small objects moved; hanging objects swung. 
  Edgecomb.-Small objects moved; trees and bushes shaken.
  Everett.-Many objects disturbed. Coffee slopped from cup. Rain gauge re-
	  corder registered disturbance.
  Greenwater.-Visible swaying of buildings. Dishes and other objects dis-
	  placed.
  Mount Vernon.-Small objects moved, some overturned; hanging objects dis-
	  turbed. Trees and bushes shaken.
  North Bend Ranger Station.-Small objects moved.
  Port Angeles.-Chandeliers swung, bed moved, pictures disarranged; observ-
	  er left building. Many telephone inquiries at police station.
  Port Townsend.-Many small objects disturbed; lighting fixtures swayed; stove
	  rattled. Piling in harbor reported moving to and fro. Bumping sounds.
  Seattle.-Many small objects and some furniture moved. Suspended objects,
	  trees, and bushes disturbed. Slight swaying of buildings. Faint bumping
	  sounds.
  Stampede.-Several objects disturbed; mirrors and pictures swayed. Faint
	  thumping sounds.
 1940 Isoseismal Map
  INTENSITY IV:
	  Alder, Anacortes, Blaine, Bothell, Clinton, Camano Island, Concrete, Coupeville,
	  Darrington, East Sound, Everson, Friday Harbor, Hartford, Kent, Keyport, Mon-
	  roe, Port Ludlow, Port Orchard, Preston, Scenic, Sedro-Woolley, Skykomish,
	  Skykomish Salmon Hatchery, Snohomish, Snoqualmie, Stanwood, and Sultan.
  
  INTENSITY I TO III:
	  Baldi, Brooklyn, Clallam Bay, Enumclaw, Mazama, Palmer, Potlatch, Puyallup,
	  Quilcene, and Sequim.
  
  Not felt at Ashford, Buckley, Castle Rock, Cathlamet, Centralia, Chehalis, Cle
	Elum, Diablo, Forks, Gig Harbor, Glacier, Grapeview, Hyak, Joyce, Kalama,
	Kelso, Kosmos, Lakebay, Lester, Lucerne, Mineral, Moclips, Monroe, Naselle.
	Neah Bay, North Head, Oakville, Port Angeles, Point Roberts, Pysht, Quinault,
	Randle, Rockport, Sandsburg, Shelton, Spirit Lake, South Bend, Tacoma, Tatoosh
	Island, Vashon, Washougal, Wenatchee, Winton, Yacolt, and Yelm.
  The shock was felt slightly in Vancouver, British Columbia.

November 13: 22: 30.- Tacoma-Olympia area in Washington.
	Epicenter 47.7 degrees north, 121.5 degrees west, according to
	Jesuit Seismological Association. Light shocks accompanied by subterranean
	sounds reported by many residents of Tacoma, Olympia, and nearby points.
	Felt at Brown's Point, Dash Point, Fox Island, La Grande, and Lakebay.
	Reported not felt in some sections of Tacoma, Seattle, Port Angeles,
	Tatoosh Island, and Neah Bay.
November 18: 23: 00 (about). Tacoma, Wash. Slight.
November 25: 3: 00, 4: 47, and 11: 00 (about). Tacoma, Wash. Feeble shocks
	reported by residents at various times.


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