Individual Event Report
 
| Event #592 - Summary, and parameter estimates with source IDs                                             | 
 
| Listed in catalogs, this event is soley based on a single MWR report from the observer in Arlington, who reported a double shock at this time. 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 | 
 
| 1923  | 
7  | 
14  | 
4  | 
10  | 
P  | 
P  | 
48.10  | 
121.80  | 
  | 
  | 
  | 
Silverton  | 
WA  | 
IV  | 
MM  | 
  | 
  | 
  | 
 
| TAWA - 1175 | 
WWC - 1866 | 
 -  | 
 -  | 
RAS - 170 | 
 -  |  
 
 Underlying Source Material
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 795  | 
Reid, unpub., Scrapbook and Cardfile, on microfilm at USGS in Menlo Park  | 
  | 
  | 
 
| Transcription: Arlington 48 degrees 10' N;  122 degrees 10' W PST 4:10  pm, 5:45 pm   14 July, 1923 GMT 0h 10m, 1h 45m     15 July, 1923 IV -MWR Evidently related to shocks 1/2 hour earlier.  Perhaps the same. | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 1175  | 
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: 1923 July 14. 3:30 p.m., 4:10 pm., 5:45 p.m. IV. Snohomish Co. The first shock reported from Silverton as double, IV, duration thirty seconds; may correspond to first shock felt at Arlington, 4:10 p.m., also reported as double, IV, duration several seconds; felt by many. The shock at 5 :45 p.m. was reported at Arlington only.-MWR, 51, 378. | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 2313  | 
Monthly Weather Review  | 
1923  | 
V. 51, p. 378  | 
 
Transcription: Date:  July 15, 1923 Time (Greenwich Civil):  0:10 Location:  Arlington, Washington Latitude (deg., min.):  48 10 Longitude (deg.,min.):  122 10 RF Intensity:  4 Number of Shocks:  2 Duration (sec.):  Several Sounds: Rumbling Remarks:  Felt by many Observer: N. Field | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 1866  | 
Woodward Clyde Consultants,  unpublished  | 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: 192307150010000 48100-121800W IV                 R  4 01 | 
 
|   | 
 
| Source ID | 
Publication | 
Pub Date | 
Pub Details | 
 
| 170  | 
Rasmussen,  Norman, 1967,  Washington state earthquakes 1840 through 1965, BSSA V. 57, No. 3, pp. 463-476  | 
1967  | 
  | 
 
| Transcription: 170     1923    July 14-15 See Remarks   Silverton-Arlington   IV           4           Three shocks, all IV; 23:30,00:10,01:45 | 
 
|   | 
 
 
 
 
 
 
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