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

    55.8 km WSW of The Dalles Dam, OR. (ACOE)
    66.7 km ESE of RBO  -  Rocky Butte (USGS, OR)
    70.3 km   E of Portland, OR. Clackamas Highway Bridge (ODOT)
    70.3 km   E of Portland, OR. Terwilliger Interchange (ODOT)
    70.3 km   E of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
    72.8 km ESE of HAO  -  Harrison (USGS, OR)
    74.5 km   E of Portland, OR. VA Hospital, Steam Plant (USGS)
    74.8 km ESE of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
    75.4 km ESE of CSO  -  Canyon (USGS, OR)
    77.5 km ESE of Vancouver, WA. VA Hospital Bldg. #4 (VA)
    78.3 km ESE of ROSS -  Ross
    81.5 km NNE of Detroit Dam, OR. (ACOE)
    91.9 km ESE of KEEL -  Keeler
    92.4 km WSW of John Day Dam, OR. (ACOE)
   117.4 km NNE of Green Peter Dam, OR. (ACOE)
   127.3 km SSE of Toutle River Dam, WA. (ACOE)
   130.0 km  SE of ALST -  Alston
   139.9 km NNE of Blue River Dam, OR. (ACOE)
   140.9 km SSE of Mossy Rock Dam, WA., Cowlitz R. (ACOE)
   142.9 km NNE of Cougar Dam, OR. (ACOE)