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

     Earthquake is

    54.4 km   N of John Day Dam, OR. (ACOE)
    73.2 km NNE of The Dalles Dam, OR. (ACOE)
    92.2 km WSW of 200 West (H2W)
    99.2 km WSW of 100-K Area (H1K)
    99.5 km WSW of 200 East (H2E)
   108.1 km WSW of 400 Area (H4O)
   112.6 km   W of 300 Area (H3O)
   114.6 km WNW of McNary Dam, OR. (ACOE)
   131.9 km  NW of Willow Creek Dam, OR.(ACOE)
   136.2 km ESE of Mossy Rock Dam, WA., Cowlitz R. (ACOE)
   139.2 km  SE of Mud Mountain Dam, WA. (ACOE)
   142.4 km   W of Ice Harbor Dam, WA. Snake R. (ACOE)
   142.7 km   E of Toutle River Dam, WA. (ACOE)
   144.3 km  SE of Howard Hanson Dam, WA. (ACOE)
   161.1 km ENE of Rocky Butte, OR. (USGS-SEA)
   163.1 km ENE of Vancouver, WA. VA Hospital Bldg. #4 (VA)
   169.9 km  SE of McChord AFB, WA. Passenger Term. (USGS)
   170.8 km ENE of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
   171.2 km  SE of Tacoma, WA. Fire Station S. 7247 S. Park Ave. (TDPW)
   171.2 km ENE of Portland, OR. Clackamas Highway Bridge (ODOT)