Individual Event Report
 
| Event #521 - Summary, and parameter estimates with source IDs                                             | 
 
| The BSSA reports: "An earthquake was felt at White Bluff, about seven miles west of Spokane, Wash., shortly after 1 o'clock p.m. on April 18th and lasted about four seconds. It rattled dishes and windows and was accompanied by a rumbling noise. A.M. Jung, curator of the seismograph at Gonzaga University at Spokane reports that the time at his station was 1:13 p.m." There is also a report from the White Bluff Prarie weather observer of RF Intensity IV, lasting 4 seconds. No newspapers have been checked. | 
 
| 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  | 
4  | 
18  | 
1  | 
13  | 
P  | 
P  | 
47.60  | 
117.40  | 
  | 
  | 
  | 
White Bluffs Prairie  | 
WA  | 
IV  | 
RF  | 
  | 
  | 
  | 
 
| TAWA - 1158 | 
WWC - 1828 | 
 -  | 
 -  | 
TAWA - 1158 | 
 -  |  
 
 Underlying Source Material
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 2178  | 
Bulletin of the Seismological Society of America  | 
1918  | 
V. 8, p. 135  | 
 
| Transcription: White Bluff, Was., April 18, 1918. - An earthquake was felt at White Bluff, about seven miles west of Spokane, Wash., shortly after 1 o'clock p.m. on April 18th and lasted about four seconds. It rattled dishes and windows and was accompanied by a rumbling noise. A.M. Jung, curator of the seismograph at Gonzaga University at Spokane reports that the time at his station was 1:13 p.m. | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 145  | 
Rasmussen,  Norman, 1967,  Washington state earthquakes 1840 through 1965, BSSA V. 57, No. 3, pp. 463-476  | 
1967  | 
  | 
 
| Transcription: 145     1918   Apr. 18    21:13          White Bluffs Prarie   IV            4 | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 1158  | 
Townley, S. D. and M. W.  Allen, 1939, Descriptive Catalog of Earthquakes of the Pacific Coast of the United States 1769-1928, Chap. III Earthquakes in Washington, 1883-1928, BSSA, V. 29, No. 1, pp. 259-268  | 
1939  | 
  | 
 
| Transcription: 1918 April 18. 1:13 p.m. IV. White Bluffs Prairie, seven miles west of Spokane. Rattled dishes and windows; duration four seconds. Recorded at Gonzaga University, Spo- kane.-BSSA, 8, 135; MWR, 46, 189. | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 1828  | 
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: 191804182113000 47600-117400R2IV                 R  4 01 | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 2254  | 
Monthly Weather Review  | 
1918  | 
V. 46, p. 189  | 
 
Transcription: Date: April 18, 1918 Time (Greenwich Civil):  20:13 Location: White Bluff Prairie, Wash. (8 miles west of Spokane) Latitude (deg., min.):  47 40 Longitude (deg.,min.):  117 35 RF Intensity:  4 Number of Shocks:  1 Duration (sec.):  4 Sounds: Faint Remarks:Rumbling; rocking N-S Observer: Mrs. A.D. Currie | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 781  | 
Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park  | 
  | 
  | 
 
| Transcription: White Bluff Prarie 47 degrees 40' N;  117 degrees 35' W  PST 1:13 pm    18 Apr, 1918 GMT 20h 13m IV    1 shock   duration 4 seconds -MWR 189 | 
 
|   | 
 
 
 
 
 
 
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