11.07.2015 Views

Historical Seismograms - Evidence from the AD 2000 Izu Islands ...

Historical Seismograms - Evidence from the AD 2000 Izu Islands ...

Historical Seismograms - Evidence from the AD 2000 Izu Islands ...

SHOW MORE
SHOW LESS
  • No tags were found...

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

242 Pao Hua Lee120 121 122 123Figure 1. The Seismological Stations, CWB, Taiwan.heart of <strong>the</strong> remote stations is <strong>the</strong> microprocessor, which is based on a microcorderthat detects <strong>the</strong> earthquakes, <strong>the</strong>n sends <strong>the</strong> origin time and o<strong>the</strong>r information to<strong>the</strong> digital printer and records <strong>the</strong> data on a cassette tape. The cassettes are latersent to <strong>the</strong> central station for playback onto computer tapes for archival and futureuse. Our interest is mainly in <strong>the</strong> larger earthquakes (M 2 4.0), and <strong>the</strong>refore thissystem is designed to record and analyze earthquakes in <strong>the</strong> magnitude range 4.0to 9.0.For data processing, communications equipment has been established to permit<strong>the</strong> remote stations to link automatically with <strong>the</strong> central computer - a VAX 11/750.The stations transmit earthquake information that permits online analysis of locationand magnitude. Offline generation of archival data tapes will be performed in<strong>the</strong> future using this computer.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!