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

    52.0 km WSW of The Dalles Dam, OR. (ACOE)
    69.7 km ESE of RBO  -  Rocky Butte (USGS, OR)
    73.6 km   E of Portland, OR. Clackamas Highway Bridge (ODOT)
    73.6 km   E of Portland, OR. Terwilliger Interchange (ODOT)
    73.6 km   E of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
    75.9 km   E of HAO  -  Harrison (USGS, OR)
    77.7 km   E of Portland, OR. VA Hospital, Steam Plant (USGS)
    78.0 km   E of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
    78.6 km ESE of CSO  -  Canyon (USGS, OR)
    80.3 km ESE of Vancouver, WA. VA Hospital Bldg. #4 (VA)
    81.0 km ESE of ROSS -  Ross
    84.6 km NNE of Detroit Dam, OR. (ACOE)
    88.5 km WSW of John Day Dam, OR. (ACOE)
    95.1 km ESE of KEEL -  Keeler
   120.5 km NNE of Green Peter Dam, OR. (ACOE)
   127.8 km SSE of Toutle River Dam, WA. (ACOE)
   131.8 km  SE of ALST -  Alston
   140.9 km SSE of Mossy Rock Dam, WA., Cowlitz R. (ACOE)
   142.5 km NNE of Blue River Dam, OR. (ACOE)
   145.3 km NNE of Cougar Dam, OR. (ACOE)