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 #525 - Summary, and parameter estimates with source IDs                                           
The earthquake is mentioned in the Monthly Weather Review as having been felt at Victoria, and recorded on the Weichert vertical seismograph there. The Daily Colonist, from Victoria, reports that that the event was felt by campers at Cordova Bay and in some parts of Victoria.
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  22  21            Victoria  B.C.           
MILNE - 1448 - - - MILNE - 1448 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
6037  Daily Colonist  1918  Fri. Aug. 23, 1918 p6 c2 
Transcription: Earthquake Felt at Bay- The earthquake which occurred early yesterday morning was distinctly felt by various campers at Cordova Bay. The disturbance is believed to have had its origin in the Straits of Juan de Fuca and the shock was also felt at several points throughout the city. The Meteorological Observatory reports that the tremor lasted one second and was preceded by a distinct rumbling noise.
 
Source ID Publication Pub Date Pub Details
1448  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: 1918 AUGUST 22. 8:21 a.m. Felt slightly in Victoria and at Cordova Bay. Col.
 
Source ID Publication Pub Date Pub Details
2257  Monthly Weather Review  1918  V. 46, p. 386 
Transcription: August 22, 1918 15:21:35 Instrumental recording on Weichert vertical semismograph at Victoria

Lasted one second, preceded by a rumbling noise. Felt at Victoria Observatory and in rocky parts of city, causing articles to rattle. Probably under Strait of Juan de Fuca
 
Source ID Publication Pub Date Pub Details
662  Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park     
Transcription: Victoria PST 8:21:35 am 22 Aug, 1918 GMT 15h 21m 35s III-IV -MWR 386; SB IV, 105 A nearly (?) shock; felt in rock parts of Victoria. Preceeded by rumbling.
 


UW Logo ESS Logo