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

    40.7 km SSE of Portland, OR. Clackamas Highway Bridge (ODOT)
    40.7 km SSE of Portland, OR. Terwilliger Interchange (ODOT)
    40.7 km SSE of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
    46.3 km SSE of Portland, OR. VA Hospital, Steam Plant (USGS)
    46.6 km NNW of Detroit Dam, OR. (ACOE)
    47.2 km SSE of HAO  -  Harrison (USGS, OR)
    48.4 km SSE of RBO  -  Rocky Butte (USGS, OR)
    48.4 km SSE of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
    49.0 km SSE of CSO  -  Canyon (USGS, OR)
    60.5 km  SE of KEEL -  Keeler
    61.0 km SSE of Vancouver, WA. VA Hospital Bldg. #4 (VA)
    63.3 km SSE of ROSS -  Ross
    73.5 km   N of Green Peter Dam, OR. (ACOE)
   105.5 km   N of Blue River Dam, OR. (ACOE)
   111.4 km   N of Cougar Dam, OR. (ACOE)
   115.5 km WSW of The Dalles Dam, OR. (ACOE)
   120.1 km SSE of ALST -  Alston
   136.1 km   N of Lowell, OR. Lookout Point Dam (ACOE)
   138.2 km   S of Toutle River Dam, WA. (ACOE)
   152.1 km WSW of John Day Dam, OR. (ACOE)