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Cascadia Historic Earthquake Catalog, 1793-1929
Covering Washington, Oregon and Southern British Columbia

Provided by: The Pacific Northwest Seismic Network
About the Cascadia Historic Earthquake Catalog       One-line catalog format

1793-1849 .... 1850s .... 1860s .... 1870s .... 1880s .... 1890s .... 1900s .... 1910s .... 1920s .... 1930s (not complete) .... Other Cascadia Catalogs

  
Individual Event Report
Event #524 - Summary, and parameter estimates with source IDs                                           
Catalog entries are based on a single weather observer's report from Longmire. No newspapers have been referenced.
TIME LOCATION MAGNITUDE MAX. INTENSITY FELT AREA
YR MO DAY HR MIN AM/PM Time
Type
LAT(N) LON(W) DEP
(km)
MAG Mag
Type
Felt
Plc.
Felt
St.
Inten-
sity
Int.
Type
Felt
Area
Felt
Area
Int.
Felt
Area
Units
1918  20  47  46.50  121.70        Longmire  WA  RF       
TAWA - 1160 RAS - 147 - - TAWA - 1160 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
783  Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park     
Transcription: Longmire 46 degrees 46' N; 121 degrees 50' W PST (Sun) 10:47 pm 20 Jun, 1918 GMT 5h 47m 21 Jun, 1918 V 1 shock duration 2 seconds -MWR 288
 
Source ID Publication Pub Date Pub Details
2256  Monthly Weather Review  1918  V. 46, p. 288 
Transcription: Date: June 21, 1918
Time (Greenwich Civil): 5:47
Location: Longmire, Wash.
Latitude (deg., min.): 46 46
Longitude (deg.,min.): 121 50
RF Intensity: 5
Number of Shocks: 1
Duration (sec.): 2
Sounds: Faint
Remarks:Rumbling, gradual swaying, N-S
Observer: J.B. Flett
 
Source ID Publication Pub Date Pub Details
1831  Woodward Clyde Consultants, unpublished  1981  Woodward-Clyde Consultants (1981), Historical Catalog (1841-1980) for the Pacific Northwest Region, unpublished catalog prepared for the Washington Public Power Supply System. Copy provided to UW in 1993. 
Transcription: 191806210647000 46500-121700 V R 5 01
 
Source ID Publication Pub Date Pub Details
322  Bradford, Donald C., 1935, Seismic History of the Puget Sound Basin, BSSA, V. 25, No. 2, pp. 138-153  1935   
Transcription: 1918 June 20, 10:47 p.m.; V; Longmire Springs.
 
Source ID Publication Pub Date Pub Details
147  Rasmussen, Norman, 1967, Washington state earthquakes 1840 through 1965, BSSA V. 57, No. 3, pp. 463-476  1967   
Transcription: 147 1918 June 21 06:47 46.5 N, 121.7 W V 1
 
Source ID Publication Pub Date Pub Details
1160  Townley, S. D. and M. W. Allen, 1939, Descriptive Catalog of Earthquakes of the Pacific Coast of the United States 1769-1928, Chap. III Earthquakes in Washington, 1883-1928, BSSA, V. 29, No. 1, pp. 259-268  1939   
Transcription: 1918 June 20. 9:47 p.m. V. Longmire, Pierce Co. Swaying, north to south; duration two seconds.-MWR, 46, 288.
 


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