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.
UW Dept. of Earth and Space Sciences ..... . PNW EARTHQUAKES