Distance and direction of nearest 20 strong motion seismographs
from earthquake. Such seismographs are of interest to structural
engineers.

     Earthquake is

    48.7 km WSW of Willow Creek Dam, OR.(ACOE)
    72.6 km  SE of John Day Dam, OR. (ACOE)
    92.0 km ESE of The Dalles Dam, OR. (ACOE)
   104.1 km  SW of McNary Dam, OR. (ACOE)
   144.9 km SSW of 300 Area (H3O)
   150.0 km SSW of 400 Area (H4O)
   152.1 km  SW of Ice Harbor Dam, WA. Snake R. (ACOE)
   156.0 km SSW of 200 West (H2W)
   158.3 km SSW of 200 East (H2E)
   165.8 km SSW of 100-K Area (H1K)
   167.8 km  SW of Walla Walla, WA. VA Hospital Bldg. #109 (VA)
   176.1 km ENE of Detroit Dam, OR. (ACOE)
   195.0 km   E of RBO - SMO Rocky Butte, OR (USGS)
   199.3 km   E of Portland, OR. Clackamas Highway Bridge (ODOT)
   199.3 km   E of Portland, OR. Terwilliger Interchange (ODOT)
   199.3 km   E of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
   201.5 km   E of HAO - SMO Harrison Substation (USGS)
   203.4 km   E of Portland, OR. VA Hospital, Steam Plant (USGS)
   203.6 km   E of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
   204.2 km   E of CSO - SMO Canyon Substation (USGS)