Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia)
We analyze two seismic events that occurred on 27 May 2011 and 29 April 2013 at the Rocard submarine volcano which overlies the Society hot spot. The Polynesian Seismic Network recorded for the first time unusual associated short-and long-period signals, with perfectly monochromatic (0.0589 Hz) Rayl...
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2016
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Online Access: | https://archimer.ifremer.fr/doc/00639/75083/75614.pdf https://doi.org/10.1002/2016GL068342 https://archimer.ifremer.fr/doc/00639/75083/ |
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ftarchimer:oai:archimer.ifremer.fr:75083 2023-05-15T13:47:36+02:00 Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) Talandier, Jacques Hyvernaud, Olivier Maury, Rene 2016-05 application/pdf https://archimer.ifremer.fr/doc/00639/75083/75614.pdf https://doi.org/10.1002/2016GL068342 https://archimer.ifremer.fr/doc/00639/75083/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00639/75083/75614.pdf doi:10.1002/2016GL068342 https://archimer.ifremer.fr/doc/00639/75083/ info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2016-05 , Vol. 43 , N. 9 , P. 4247-4254 text Publication info:eu-repo/semantics/article 2016 ftarchimer https://doi.org/10.1002/2016GL068342 2021-09-23T20:35:32Z We analyze two seismic events that occurred on 27 May 2011 and 29 April 2013 at the Rocard submarine volcano which overlies the Society hot spot. The Polynesian Seismic Network recorded for the first time unusual associated short-and long-period signals, with perfectly monochromatic (0.0589 Hz) Rayleigh wave trains of long period and duration. None of the numerous observations of long-period (10-30 s) signals previously associated with volcanic activity in Japan, Italy, Mexico, Indonesia, Antarctica, and the Hawaiian Islands have the characteristics we observed at Rocard. We propose a tentative model for these unusual and rather enigmatic signals, in which the movement of lava excited the resonance of a shallow open conduit under a high hydrostatic pressure of similar to 400 bars. Article in Journal/Newspaper Antarc* Antarctica Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Geophysical Research Letters 43 9 4247 4254 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
We analyze two seismic events that occurred on 27 May 2011 and 29 April 2013 at the Rocard submarine volcano which overlies the Society hot spot. The Polynesian Seismic Network recorded for the first time unusual associated short-and long-period signals, with perfectly monochromatic (0.0589 Hz) Rayleigh wave trains of long period and duration. None of the numerous observations of long-period (10-30 s) signals previously associated with volcanic activity in Japan, Italy, Mexico, Indonesia, Antarctica, and the Hawaiian Islands have the characteristics we observed at Rocard. We propose a tentative model for these unusual and rather enigmatic signals, in which the movement of lava excited the resonance of a shallow open conduit under a high hydrostatic pressure of similar to 400 bars. |
format |
Article in Journal/Newspaper |
author |
Talandier, Jacques Hyvernaud, Olivier Maury, Rene |
spellingShingle |
Talandier, Jacques Hyvernaud, Olivier Maury, Rene Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) |
author_facet |
Talandier, Jacques Hyvernaud, Olivier Maury, Rene |
author_sort |
Talandier, Jacques |
title |
Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) |
title_short |
Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) |
title_full |
Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) |
title_fullStr |
Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) |
title_full_unstemmed |
Unusual seismic activity in 2011 and 2013 at the submarine volcano Rocard, Society hot spot (French Polynesia) |
title_sort |
unusual seismic activity in 2011 and 2013 at the submarine volcano rocard, society hot spot (french polynesia) |
publisher |
Amer Geophysical Union |
publishDate |
2016 |
url |
https://archimer.ifremer.fr/doc/00639/75083/75614.pdf https://doi.org/10.1002/2016GL068342 https://archimer.ifremer.fr/doc/00639/75083/ |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2016-05 , Vol. 43 , N. 9 , P. 4247-4254 |
op_relation |
https://archimer.ifremer.fr/doc/00639/75083/75614.pdf doi:10.1002/2016GL068342 https://archimer.ifremer.fr/doc/00639/75083/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1002/2016GL068342 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
9 |
container_start_page |
4247 |
op_container_end_page |
4254 |
_version_ |
1766247519049744384 |