WASHINGTON AND OREGON [All times are Pacific standard. If an epicenter is quoted, Greenwich mean time is given in paren- theses.] Feb. 10: 12:21:11.8 (20:21). Epicenter 47.7 degrees N., 122.3 degrees W., northwestern Washington, at a depth of 33 km., mag. 3.9. Int. V. Felt over about 3,900 sq. km. (1,500 sq. mi.), principally in the Puget Sound region. No damage resulted. Int. V at Bothell (about 24 km. north-northwest of Seattle) and Richmond Beach (about 3 km. north of Seattle city limits). Int. IV at Annapolis, Baring, Edmonds, Freeland, Gold Bar, Index, Indianola, Mountlake Terrace, Port Orchard, Retsil, Seattle, South Colby, Sultan, and Woodinville. Int. I-III at Dockton, Duvall, Hansville, Kent, Kingston, Olalla, Port Gamble, Preston, Renton, Seattle Heights, and Silverdale. Also reported felt at Bremer- ton, Harper, and Southworth (press). May 17: 21:29:54.0 (May 18, 05:29). Epicenter 48.6 degrees N., 122.7 degrees W., northwestern Washington, at a depth of 11 km., mag. 4.0 (m b). Felt from Orcas Island to Seattle. Oct. 24: 14:32:07.7 (22:32). Epicenter 47.3 degrees N., 122.4 degrees W., Washington, at a depth of 25 km., mag. 4.2. Int. V. Felt over about 5,980 sq. km. (2,300 sq. mi.) of northwestern Washington. The shock did not cause dam- age. Int. V at Elbe, Milton, and Puyallup. Int. IV at Auburn, Buckley, Burley, Burton, Dash Point, Dockton, Eatonville, Fort Lewis, Gig Harbor, Kapowsin, McChord Air Force Base, Manchester, Olalla, Orting, Olympia, Retsil Seattle, South Colby, Spanaway, Sumner, Tacoma, and Vashon. Int. I-III at Anderson Island, Du Pont, East Olympia, Kent, La Grande, Lakeview, McMillin, Pa- cific, Port Orchard, Preston, Redondo, Roy, Seabeck, Vaughn, and Wauna.
UW Dept. of Earth and Space Sciences ..... . PNW EARTHQUAKES