PNSN Logo
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 #583 - Summary, and parameter estimates with source IDs                                           
The underlying sources are reports by weather observers in Anacortes, Marietta, and Olga. No newspaper accounts have been researched.
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
1923  12  10  15  48.50  122.61        Anacortes  WA  IV  RF       
TAWA - 1174 WWC - 1863 - - TAWA - 1174 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
1174  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: 1923 March 12. 10:15 a.m. IV. Anacortes, Skagit Co., and Marietta, Whatcom Co. Felt by many. Also felt at Olga, San Juan Co., by many; intensity given as II; probably should be III.-MWR, 51, 166.
 
Source ID Publication Pub Date Pub Details
328  Bradford, Donald C., 1935, Seismic History of the Puget Sound Basin, BSSA, V. 25, No. 2, pp. 138-153  1935   
Transcription: 1923 March 12, 10:15 a.m.; shock in the general vicinity of Anacortes and Marietta.
 
Source ID Publication Pub Date Pub Details
1474  Milne, W.G., 1956, Seismic Activity in Canada, west of the 113th meridian 1841-1951: Canada Dominion Obs. Pub., V. 18, No. 7, pp. 119-146  1957   
Transcription: 1923 MARCH 12. Felt slightly in the Gulf Islands region, but not at Victoria. BSSA
 
Source ID Publication Pub Date Pub Details
1863  Woodward Clyde Consultants, unpublished  1981  Woodward-Clyde Consultants (1981), Historical Catalog (1841-1980) for the Pacific Northwest Region, unpublished catalog prepared for the Washington Public Power Supply System.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: 192303121815000 48502-122610W IV R 4 01
 
Source ID Publication Pub Date Pub Details
169  Rasmussen, Norman, 1967, Washington state earthquakes 1840 through 1965, BSSA V. 57, No. 3, pp. 463-476  1967   
Transcription: 169 1923 Mar. 12 18:15 Anacortes IV 4
 
Source ID Publication Pub Date Pub Details
2311  Monthly Weather Review  1923  V. 51, p. 166 
Transcription: Date:March 12, 1923
Time (Greenwich Civil): 18:20
Location: Olga, Wash.
Latitude (deg., min.): 48 40
Longitude (deg.,min.): 122 50
RF Intensity: 2
Number of Shocks: 1
Duration (sec.): 5ca
Sounds: None
Remarks:Felt by many
Observer:C. S. Willis
 
Source ID Publication Pub Date Pub Details
2310  Monthly Weather Review  1923  V. 51, p. 166 
Transcription: Date:March 12, 1923
Time (Greenwich Civil): 18:15
Location: Marietta, Wash.
Latitude (deg., min.): 48 50
Longitude (deg.,min.): 122 40
RF Intensity: 4
Number of Shocks: 1
Duration (sec.): 10
Sounds:
Remarks:Felt by many
Observer:S. B. Mayhew
 
Source ID Publication Pub Date Pub Details
2309  Monthly Weather Review  1923  V. 51, p. 166 
Transcription: Date:March 12, 1923
Time (Greenwich Civil): 18:15
Location: Anacortes, Wash.
Latitude (deg., min.): 48 30
Longitude (deg.,min.): 122 40
RF Intensity: 4
Number of Shocks: 1
Duration (sec.): 5-6
Sounds: None
Remarks:Felt by many
Observer:W. B. Short
 


UW Logo ESS Logo