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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 #200 - Summary, and parameter estimates with source IDs                                           
The Monthly Weather Review is the original source for this earthquake. It reports that "three shocks of an earthquake, each of about one second's duration and separated by an interval of six seconds, occurred between 1 and 2 a. m. of the 10th" in East Portland, Oregon. Both the Oregonian and the Post-Intelligencer were searched for articles, without success
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
1885  10  10      45.55  122.60        East Portland  OR  III  RF       
MWR - 2193 WWC - 1678 - - CGR - 1211 -

Underlying Source Material
Source ID Publication Pub Date Pub Details
598  Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park     
Transcription: East Portland between 1h-2h 10 Oct, 1885 III, duration 1 second -Am. Jr. Sc. III-XXXII-14 Between 1 and 2 am. These shocks were felt, each of about 1 second duration and seperated by an inter- -------following card not present---
 
Source ID Publication Pub Date Pub Details
473  Holden, Edward S., 1887, List of Recorded Earthquakes in California, Lower California, Oregon, and Washington Territory  1887  Printed by Direction of the Regents of the University of California, Sacremento, California, 
Transcription: 1885. October 10; between 1h.-2h. Three very light shocks (III), East Portland, Oregon.--U.S.W.R.
 
Source ID Publication Pub Date Pub Details
499  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: 1885 October 10. Between 1h and 2h [1 a.m. and 2 a.m.] III. East Portland. Three very light shocks.-MWR [Oct. 1885, p. 265]. 1h 30m. II.-P. See 1886 October 13. [Amer. Jour. Sci., 3d ser., 32, 14. The significance of Holden's reference to October 13, 1886, is not apparent.]
 
Source ID Publication Pub Date Pub Details
356  Byerly, Perry, 1952, Pacific Coast Earthquakes, Condon Lecture, pp. 33-38  1952  U.W. Library, N979 B991p, Special Collections) 
Transcription: 1885, October 10 III East Portland. Three very light shocks.
 
Source ID Publication Pub Date Pub Details
1678  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: 188510100900000 45550-122600W1III BB 3 01
 
Source ID Publication Pub Date Pub Details
811  Reid 2, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park     
Transcription: Portland 1-2h October 10, 1885 III 3 shocks; Duration 1 second.
 
Source ID Publication Pub Date Pub Details
2193  Monthly Weather Review  1885  October, V. 13, p. 266 
Transcription: October, 1885: East Portland, Oregon: three shocks of an earthquake, each of about one second's duration and separated by an interval of six seconds, occurred between 1 and 2 a. m. of the 10th.
 
Source ID Publication Pub Date Pub Details
1211  The American Journal of Science  1887  Third Series, Vol. XXXII, Nos. 187-192, July to December 1886, pp. 13-16 
Transcription: Rockwood, C. G. "American Earthquakes", THE AMERICAN JOURNAL OF SCIENCE, Third Series,, VOL. XXXII, Nos. 187-192, July to December 1886, pp. 13-16.

May 3, 1885 - 23h 30m local time a very light shock (III) at Olympia, W. T. Light shocks continued until 1h 30m of the 4th (U.S. Weather Review)

June 27 - 5h 26m at Olympia, W. T., a light shock (IV) east to west, with rumbling noise (U. S. Weather Review).

October 9 - 8h a moderate shock (V), south to north, at Olympia, W. T.

October 10 - Between 1h and 2h three very light shocks (III), each of about one second duration and separated by an interval of six seconds, at East Portland, Oregon (U. S. Weather Review).

December 8 - In the evening a moderate earthquake (V) occurred in the vicinity of Puget Sound, W. T. The principal shock occurred at 22h 40m, 120th meridian time, and was felt as far south as Olympia, where the motion was east-west and was sufficient to arouse sleepers. At East Sound three light shocks were reported at 22h 35m; two heavy ones, rattling dishes at 22h 40m; two light ones at 23h 15m, and a somewhat heavier one at 23h 50m ... It was also reported from Port Angeles and Salt Springs Island.

December 18 - 0h 30m a very light shock (III) at Tatoosh Island in the extreme northwest of Washington Territory. It lasted about five seconds and was followed by a second shock about ten minutes later (U. S. Weather Review).
 
Source ID Publication Pub Date Pub Details
1304  Berg and Baker, 1963, Oregon Earthquakes, 1841 through 1958, BSSA, V. 53, No. 1, pp. 95-108  1963   
Transcription: 1885 Oct 10 09:--:-- Oct 10 1-2 am (PST) Portland II*-III* 10 Three very light shocks. (10)
 


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