J. Caplan-auerbach et F. Duennebier, Seismic and acoustic signals detected at Lo'ihi Seamount by the Hawai'i Undersea Geo-Observatory, GEOCH GEO G, 2, 2001, pp. NIL_1-NIL_17
The Hawaii Undersea Geo-Observatory (HUGO) is an ocean bottom observatory l
ocated on the summit of Loihi seamount, Hawaii. An electro-optical cable co
nnects the HUGO junction box to a shore station on the Big Island of Hawaii
, thereby enabling the first real-time monitoring of a submarine volcano. H
UGO was active for 3 months in 1998, collecting nearly continuous, real-tim
e data on a high-rate hydrophone. Signals detected during that time include
local as well as teleseismic earthquakes, T phases from Pacific-wide earth
quakes, landslides on the submarine flank of Kilauea, and eruption sounds f
rom the current Kilauea eruption. The data do not indicate a Loihi eruption
during the time that HUGO was active. The variety and quality of signals d
etected by the HUGO hydrophone confirms that a real-time observatory can se
rve a valuable role in studies of oceanic acoustics, local and teleseismic
earthquakes, and submarine eruption mechanics.