caa a22 4500 47581391X CHVBK 20180406123804.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1007/s000240050021 doi (NATIONALLICENCE)springer-10.1007/s000240050021 Tsunamis Generated by Subaquatic Volcanic Explosions: Unique Data from 1996 Eruption in Karymskoye Lake, Kamchatka, Russia [Elektronische Daten] [A. Belousov, B. Voight, M. Belousova, Y. Muravyev] —The 1996 subaquatic explosive eruption near the northern shore of Karymskoye Lake in Kamchatka, Russia, generated multiple tsunamis. We document the explosive process that produced the tsunamis, and describe the tsunami effects and runup around the 4-km diameter lake. These data enable the determination of an attenuation relation of runup (wave) height for these "explosive” tsunamis, which is compared with theoretical models of wave height distributions. For the proximal zone, involving radial distances (r) up to 1.3 km from the source, the runup height (R) shows rapid attenuation (from > 30 m to 8 m) with distance as log R = −1.98 log[r] + 2.6. For the distal zone, r > 1.3 km, involving mainly wave travel southeastwards along the body of the lake away from the explosion source, R decays more slowly (from 8 m to 3 m) as log R = −0.56 log[r] + 1.9. Rapid decay in the proximal zone suggests that near the source of the explosion, the tsunami propagated radially as a collapsing wave (bore) with discontinuous change in height. The break-in-slope of the runup plot at 1.3 km suggests that beyond this distance the tsunami propagated approximately as a decaying one-dimensional wave in a channel of approximately constant width. Birkhäuser Verlag Basel,, 1999 Key Words: Tsunami of volcanic origin, base surge, tsunami runup, underwater volcanic explosion, Karymskoye Lake, Kamchatka nationallicence Belousov A. Institute of Volcanic Geology and Geochemistry, Piipa Blvd, 9, Petropavlovsk-Kamchatsky 683006, Russia., RU aut Voight B. Department of Geosciences, The Pennsylvania State University, Deike Building, University Park, Pennsylvania 16802, U.S.A., US aut Belousova M. Institute of Volcanic Geology and Geochemistry, Piipa Blvd, 9, Petropavlovsk-Kamchatsky 683006, Russia., RU aut Muravyev Y. Institute of Volcanology, Piipa Blvd, 9, Petropavlovsk-Kamchatsky 683006, Russia., RU aut https://doi.org/10.1007/s000240050021 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s000240050021 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Belousov A. Institute of Volcanic Geology and Geochemistry, Piipa Blvd, 9, Petropavlovsk-Kamchatsky 683006, Russia., RU aut NATIONALLICENCE 700 1- Voight B. Department of Geosciences, The Pennsylvania State University, Deike Building, University Park, Pennsylvania 16802, U.S.A., US aut NATIONALLICENCE 700 1- Belousova M. Institute of Volcanic Geology and Geochemistry, Piipa Blvd, 9, Petropavlovsk-Kamchatsky 683006, Russia., RU aut NATIONALLICENCE 700 1- Muravyev Y. Institute of Volcanology, Piipa Blvd, 9, Petropavlovsk-Kamchatsky 683006, Russia., RU aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer