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

    54.7 km SSE of The Dalles Dam, OR. (ACOE)
    67.4 km SSW of John Day Dam, OR. (ACOE)
   112.8 km ENE of Detroit Dam, OR. (ACOE)
   113.0 km WSW of Willow Creek Dam, OR.(ACOE)
   134.0 km ESE of RBO  -  Rocky Butte (USGS, OR)
   136.9 km ESE of Portland, OR. Clackamas Highway Bridge (ODOT)
   136.9 km ESE of Portland, OR. Terwilliger Interchange (ODOT)
   136.9 km ESE of Portland, OR. Stark St&Water Ave, Morrison Ramp (ODOT)
   139.9 km ESE of HAO  -  Harrison (USGS, OR)
   141.4 km ESE of Portland, OR. VA Hospital, Steam Plant (USGS)
   142.0 km ESE of Portland, OR. State Univ, Bsmt. Cramer Hall (USGS)
   142.6 km ESE of CSO  -  Canyon (USGS, OR)
   144.9 km ESE of Vancouver, WA. VA Hospital Bldg. #4 (VA)
   145.6 km ESE of ROSS -  Ross
   145.9 km ENE of Green Peter Dam, OR. (ACOE)
   152.6 km  NE of Cougar Dam, OR. (ACOE)
   153.6 km  NE of Blue River Dam, OR. (ACOE)
   156.4 km WSW of McNary Dam, OR. (ACOE)
   159.0 km ESE of KEEL -  Keeler
   184.1 km  SE of Toutle River Dam, WA. (ACOE)