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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 #644 - Summary, and parameter estimates with source IDs                                           
See comment for event on previous day at this location.
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
1927      44.80  117.20        Richland  OR  IV  MM       
N-Ore - 2547 WWC - 1894 - - BB - 1378 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
2547  The Oregonian  1927  April 10, 1927, p. 1. c. 4 
Transcription: Oregon has quake - Baker, Or., April 9. - Special - Four towns in Pine and Eagle valleys reported a series of mild earthquake shocks at intervals last night and early this morning. It is the first earth tremor reported in this county since 1909. Shocks were felt at Richland, Newbridge, Sparta and Halfway. The first shock was felt at about 9 o'clock, when windows were rattled in Richland and Halfway. Another followed shortly before midnight, another an hour or two later, and still another at several points about 6 o'clock this morning. Some reported four shocks, while some said they felt five.
The Richland union high school was the scene of an entertainment. which was interrupted by the first shock, which rattled the windows. A lodge gathering was similarly interrupted. The shocks lasted only a few seconds and were not (?) violent. No property damage was reported at any point. The first (?) tremor was the heaviest, though a good many were awakened by those later in the night, reports from Richland and Halfway said.
 
Source ID Publication Pub Date Pub Details
1378  Berg and Baker, 1963, Oregon Earthquakes, 1841 through 1958, BSSA, V. 53, No. 1, pp. 95-108  1963   
Transcription: 1927 Apr 9 09:30:-- Apr 9 1:30 am (PST) Richland Area III-IV 10;O/Apr 10, 1927, 1:4
 
Source ID Publication Pub Date Pub Details
1894  Woodward Clyde Consultants, unpublished  1981  Woodward-Clyde Consultants (1981), Historical Catalog (1841-1980) for the Pacific Northwest Region, unpublished catalog prepared for the Washington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: 192704 90930000 44800-117200W1IV BB 4 01
 


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