Distance and direction of nearest 20 strong motion seismographs
(accelerometers) from earthquake. Such seismographs are of interest to 
structural engineers (data from ~seis/sites.dat).

     Earthquake is

    41.8 km  NW of Detroit Dam, OR. (ACOE)
    47.8 km   S of Portland, OR. Clackamas Highway Bridge (ODOT)
    47.8 km   S of Portland, OR. Terwilliger Interchange (ODOT)
    47.8 km   S of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
    52.9 km   S of Portland, OR. VA Hospital, Steam Plant (USGS)
    54.5 km   S of HAO  -  Harrison (USGS, OR)
    55.3 km   S of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
    55.8 km   S of CSO  -  Canyon (USGS, OR)
    57.5 km   S of RBO  -  Rocky Butte (USGS, OR)
    63.0 km   N of Green Peter Dam, OR. (ACOE)
    64.3 km SSE of KEEL -  Keeler
    69.0 km   S of Vancouver, WA. VA Hospital Bldg. #4 (VA)
    71.4 km   S of ROSS -  Ross
    96.7 km   N of Blue River Dam, OR. (ACOE)
   103.2 km NNW of Cougar Dam, OR. (ACOE)
   124.5 km   N of Lowell, OR. Lookout Point Dam (ACOE)
   126.3 km SSE of ALST -  Alston
   129.2 km WSW of The Dalles Dam, OR. (ACOE)
   146.2 km   N of Oakridge, OR. Hills Creek Dam (ACOE)
   148.0 km   S of Toutle River Dam, WA. (ACOE)