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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 #608 - Summary, and parameter estimates with source IDs                                           
Known from Milne's catalog, and from a newspaper article from the Chilliwack Progress which was transcribed in the WPPSS documents. Milne's intensity of III appears to low, does not jibe with reports of persons awakened in Bellingham and items knockd off of mantlepieces. Newspaper reports should be sought. The report of a felt area of 6 square miles is cited in Milne must surely be wrong.
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
1924              Chilliwack  B.C.  III  MM  6.00    mi2 
MILNE - 1486 - - - MILNE - 1486 MILNE - 1486

Underlying Source Material
Source ID Publication Pub Date Pub Details
2398  Washington Public Power Supply System, Preliminary
Safety Analysis Report, Ammendment 23,
WPPSS Nuclear Project No. 1, 1300 MW Nuclear Power Plant, Vol. 2A. 
1977  Tables 2R-E16 and 2R-E14B. Chilliwack Progress, The, Chilliwack, B.C., August 13, 19 
Transcription: Aug 08, 1924 CHILLIWACK PROGRESS, THE 08/13/1924
Chilliwack Progress, The, Chilliwack, B.C., August 13, 1924

"QUAKE IN SUMAS

"Residents of Huntingdon, Sumas and the district for some 6 miles
around were awakened at about 3 o'clock Thursday morning by an earth-
quake tremor which knocked small articles from mantelpieces and other
high places in their homes. No damage was done."
 
Source ID Publication Pub Date Pub Details
1486  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: 1924 AUGUST 8. 3: a.m. III. A report from Chilliwack stated that an area about 6 miles square in the Sumas district felt a slight tremor. A Victoria newspaper report mentioned persons being awakened by the tremor in that city and in Bellingham. The epicentre was probably in the Sumas district. D
 


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