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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 #586 - Summary, and parameter estimates with source IDs                                           
Far to the northwest, and listed only in Milne, who cites the ISS as the source for the location, and Gutenberg and Richter (1949) as the magnitude source. There is no mention of the earthquake being felt.
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  4  25  11  32  A  L  59.00  138.00    5.75  G               
MILNE - 1477 MILNE - 1477 - MILNE - 1477 - -

Underlying Source Material
Source ID Publication Pub Date Pub Details
1477  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 APRIL 25. 11:32 a.m. phi = 59.0 degrees N; lambda = 138 degrees W; M = 5 3/4. G.
 


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