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Registration of the Simushir and Nevelsk tsunamis in the port of Kholmsk
Authors:P. D. Kovalev  G. V. Shevchenko  D. P. Kovalev  A. G. Chernov  D. Ye. Zolotukhin
Affiliation:(1) Russian Academy of Sciences, Institute of Marine Geology and Geophysics (IMGG), Nauki str. 1b, Yuzhno-Sakhalinsk, Russia
Abstract:The November 16, 2006, Simushir and August 2, 2007, Nevelsk tsunami records obtained by bottom pressure gauges in Kholmsk Bay are analyzed. The dominant role of the zero mode of eigen oscillations in the bay during the the wave field formation is shown: in the initial record interval (for the remote tsunami source) and 1.5 h after the first wave (for the nearly tsunami). Numerical modeling showed that the longer waves propagated toward Kholmsk in the case of the Nevelsk earthquake and they did not generate eigen oscillations of the bay. These oscillations were generated 1.5 h later when the shorter waves reflected from the Primorye coast arrived.
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