Strong motion waveform

Record information

  • Event: 2009/08/09 19:55 S Off Tokaido (M=6.8, h=333 km)
  • Station: Iwaki City Hall (IWK)
  • Instrument: SMAC-MD
  • Sensor places: B1F, 09F (click to see other waveforms)
  • Epicentral distance: 491 km
  • Peak acceleration: 10.7 cm/s2 (at B1F)
  • Seismic intensity: 2.5 (at B1F)
  • Record length: 74 sec.

Acceleration waveform at B1F

waveform

Pseudo response spectrum at B1F

sv graph