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

    53.4 km  SW of The Dalles Dam, OR. (ACOE)
    73.1 km ESE of RBO  -  Rocky Butte (USGS, OR)
    76.4 km   E of Portland, OR. Clackamas Highway Bridge (ODOT)
    76.4 km   E of Portland, OR. Terwilliger Interchange (ODOT)
    76.4 km   E of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
    79.1 km ESE of HAO  -  Harrison (USGS, OR)
    80.7 km ESE of Portland, OR. VA Hospital, Steam Plant (USGS)
    81.1 km NNE of Detroit Dam, OR. (ACOE)
    81.1 km ESE of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
    81.8 km ESE of CSO  -  Canyon (USGS, OR)
    84.2 km ESE of Vancouver, WA. VA Hospital Bldg. #4 (VA)
    85.0 km ESE of ROSS -  Ross
    89.3 km WSW of John Day Dam, OR. (ACOE)
    98.2 km ESE of KEEL -  Keeler
   117.2 km  NE of Green Peter Dam, OR. (ACOE)
   133.3 km SSE of Toutle River Dam, WA. (ACOE)
   136.7 km  SE of ALST -  Alston
   138.2 km NNE of Blue River Dam, OR. (ACOE)
   140.8 km NNE of Cougar Dam, OR. (ACOE)
   146.5 km SSE of Mossy Rock Dam, WA., Cowlitz R. (ACOE)