WASHINGTON AND OREGON (PACIFIC WAR OR 105th MERIDIAN) January 30: 22:54. May have centered near San Juan Island, Wash., though the data are not complete enough to draw a definite conclusion. The shock was felt in Canada, especially in Vancouver, but details are not available. It was not a strong shock. Some towns within the felt area returned negative reports. Felt reports were received from Blaine, Coupeville, Everson, Marietta, Mount Vernon, Point Roberts, Port Angeles, Pysht, Sedro-Wooley, Sekiu, and Sumas. Not felt in 22 places, including Anacortes, Bellingham, Clallam Bay, Friday Harbor, and Port Townsend. February 23: 7:03. Washington. Light shock felt at Chelan, Chelan Falls, Cle Elum, Ellensburg, Entiat, Morton, Omak, and Wenatchee. Reported not felt at 58 places. May 11: 3:50. Felt in Washington at Lynden where the walls creaked and some people were awakened. Reported not felt at 12 towns. May 11: 13:00. Felt slightly in Washington at Nooksack. Six towns reported the shock was not felt. May 12: 17:52. Oregon. Maximum intensity V reported at Corvallis where it was felt by many. No felt reports were received from 5 towns including Corvallis. June 12: 2:30. Oregon. Northwest part of Baker County. Press reports indicate that the shock was felt at Baker, Halfway, Eagle Valley, Pine, and Richland. Reported strongest at Halfway and Eagle Valley. Broken dishes reported at halfway and a table upset at Eagle Valley. Maximum intensity about V. October 14: 4:30. Intensity V at Stehekin, Wash., and south of Mt. McGregor, where all were awakened, plaster cracked and large rocks were sent crashing down the mountainside. The shock was also felt in Washington at Holden, Lucerne, and Mazama. Negative reports were received from nine towns. November 1: 10:00. Intensity V at Portland, Oreg., where plaster cracked, windows rattled, and small objects were shifted. November 1: 11:50.* Northern Idaho earthquake felt strongly in Washington. See Western Moun- tain Region for complete details. FROM WESTERN MOUNTAIN REGION SECTION: November 1: 12:50 (Mountain War Time. Northern Idaho and parts of Washington and Montana. Instrumental epi- center about 48.0 degrees north, 116.7 degrees west. Maximum intensity VI. Area affected, 25,000 square miles. The Northern Pacific Railroad partially suspended operation to inspect the right of way for boulders and slides. No damage of consequence. Some furniture was reported shifted and in a few cases residents fled from buildings. INTENSITY VI: Sand Point, Idaho. - Some church services were disrupted, and residents ran from their houses. Bottles were shaken from store shelves; small furnishings moved, vases overturned. Trees and bushes were shaken moderately. Colfax, Washington. - Small furnishings shifted, vases overturned and knickknacks fell. INTENSITY V: Coeur d'Alene, Hope, and Porthill in Idaho; Kalispell and Marion in Montana; Newport, Metaline Falls and Northport in Washington. At Coeur d'Alene some chimney bricks were displaced; plaster cracked at Hope. Small objects shifted, suspended objects swayed, windows rattled, and subterranean sounds were heard in the various places listed. INTENSITY IV: Avery, Bonners Ferry, and Kellog, in Idaho; Libby, Rexford, Thompson Falls, and Troy in Montana; Cheney, Clayton, Coulee Dam, Gifford, Newport, and Spokane in Washington. INTENSITY II AND UNDER: Wallace in Idaho; Fortine, Heron, Paradise, and Polebridge in Montana; Pullman, Chewelak, Grand Coulee and Deer Park in Washington. Not felt at Lewiston, Idaho; Haugan, Montana; 28 places canvassed in Washington and 36 in Oregon. Two light aftershocks felt at 9:42 and 13:15. All three shocks were recorded on the seismograph at Mount St. Michaels.
November 1: 12:30. Madras, Oreg. Light shock rattled doors. December 1: 6:35. Entiat, Wash. Light shock rattled windows. December 14. 19:45. Eatonville (Clear Lake), Wash. Light shock felt by several. Rattled doors windows, and dishes.
UW Dept. of Earth and Space Sciences ..... . PNW EARTHQUAKES
University of Washington Dept. of Earth and Space Sciences, Box 351310 Seattle, WA, 98195-1310