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 #552 - Summary, and parameter estimates with source IDs                                           
All catalog entries stem from one report from the weather observer at Portland, Oregon. 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
1921  12      45.55  122.60        Portland  OR  III  RF       
TA-OR - 543 WWC - 1849 - - TA-OR - 543 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
635  Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park     
Transcription: Portland PST 12 midday 4 March, 1921 GMT 20h 0m III several shocks MWR
 
Source ID Publication Pub Date Pub Details
2277  Monthly Weather Review  1921  V. 49, p. 177 
Transcription: Date: March 4, 1921
Time (Greenwich Civil): 20:00
Location: Portland, Oregon
Latitude (deg., min.): 45 30
Longitude (deg.,min.): 122 40
RF Intensity: 2-3
Number of Shocks: Several
Duration (sec.):
Sounds: None
Remarks:Felt by several
Observer:
 
Source ID Publication Pub Date Pub Details
158  Rasmussen, Norman, 1967, Washington state earthquakes 1840 through 1965, BSSA V. 57, No. 3, pp. 463-476  1967   
Transcription: 158 1921 Mar. 4 20:00 Portland, Ore. 3 several shocks felt
 
Source ID Publication Pub Date Pub Details
1362  Berg and Baker, 1963, Oregon Earthquakes, 1841 through 1958, BSSA, V. 53, No. 1, pp. 95-108  1963   
Transcription: 1921 Mar 4 20:00:-- Mar 4 12 Noon (PST) Portland II*-III* 10 Several shocks. (10)
 
Source ID Publication Pub Date Pub Details
398  Byerly, Perry, 1952, Pacific Coast Earthquakes, Condon Lecture, pp. 33-38  1952  U.W. Library, N979 B991p, Special Collections) 
Transcription: 1921, March 4 Portland. Several shocks; felt by several people.
 
Source ID Publication Pub Date Pub Details
1849  Woodward Clyde Consultants, unpublished  1981  Woodward-Clyde Consultants (1981), Historical Catalog (1841-1980) for the Pacific Northwest Region, unpublished catalog prepared for the Washington Public Power Supply System.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: 192103 42000000 45550-122600W III BB 3 01
 
Source ID Publication Pub Date Pub Details
543  Townley, S.D. and M.W. Allen, 1939, Descriptive Catalog of earthquakes of the Pacific Coast of the United States 1769 to 1928, Chapter II, Earthquakes in Oregon--1846-1928, BSSA, V. 29, No. 1, pp. 253-258.  1939   
Transcription: 1921 March 4. 12 noon. II to III. Portland. Several shocks; felt by several people.MWR, 49,177.
 


UW Logo ESS Logo