Traveltime delay and initial phase reversal of distant tsunamis coupled with the self-gravitating elastic Earth: DELAY AND PRECURSOR OF DISTANT TSUNAMI

@inproceedings{Watada2014TraveltimeDA,
  title={Traveltime delay and initial phase reversal of distant tsunamis coupled with the self-gravitating elastic Earth: DELAY AND PRECURSOR OF DISTANT TSUNAMI},
  author={Shingo Watada and Satoshi Kusumoto and Kenji Satake},
  year={2014}
}
Systematic tsunami traveltime delays of up to 15 min relative to the numerically simulated long waves from the 2010 Chilean and 2011 Tohoku-Oki earthquakes were widely observed at deep ocean tsunamimeters. Enigmatic small negative phases appearing before the main peak were commonly found only at the trans-oceanic locations. The frequency dependence of the measured tsunami phase velocities shows reverse dispersions at long periods, i.e., the tsunami speed becomes slower at periods beyond 1000 s… CONTINUE READING

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