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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 #593 - Summary, and parameter estimates with source IDs                                           
Based solely on the report of an MWR observer in Arlington, this event is listed in catalogs, but no newspapers 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  7  14  5  45  P  P  48.08  122.08        Arlington  WA           
TAWA - 1175 REID1 - 795 - - MWR - 2314 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
795  Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park     
Transcription: Arlington 48 degrees 10' N; 122 degrees 10' W PST 4:10 pm, 5:45 pm 14 July, 1923 GMT 0h 10m, 1h 45m 15 July, 1923 IV -MWR Evidently related to shocks 1/2 hour earlier. Perhaps the same.
 
Source ID Publication Pub Date Pub Details
1175  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 July 14. 3:30 p.m., 4:10 pm., 5:45 p.m. IV. Snohomish Co. The first shock reported from Silverton as double, IV, duration thirty seconds; may correspond to first shock felt at Arlington, 4:10 p.m., also reported as double, IV, duration several seconds; felt by many. The shock at 5 :45 p.m. was reported at Arlington only.-MWR, 51, 378.
 
Source ID Publication Pub Date Pub Details
170  Rasmussen, Norman, 1967, Washington state earthquakes 1840 through 1965, BSSA V. 57, No. 3, pp. 463-476  1967   
Transcription: 170 1923 July 14-15 See Remarks Silverton-Arlington IV 4 Three shocks, all IV; 23:30,00:10,01:45
 
Source ID Publication Pub Date Pub Details
2314  Monthly Weather Review  1923  V. 51, p. 378 
Transcription: Date: July 15, 1923
Time (Greenwich Civil): 1:45
Location: Arlington, Wash.
Latitude (deg., min.): 48 10
Longitude (deg.,min.): 122 10
RF Intensity:
Number of Shocks:
Duration (sec.):
Sounds:
Remarks:
Observer: N. Field
 


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