Implosion with 10 Echoes (wav)

Item details

iBase ID

9854

Reference ID

ICLISTENLF224_20130722T080912.065Z_20130722T081412.090Z-segment04p.wav

Title

Implosion with 10 Echoes (wav)

Date

2013-07-22 00:00:00

Creator

Ocean Networks Canada

Copyright/Credit

Ocean Networks Canada

Access Level

Public

Warning: the initial implosion and first two reflections (echos) are very LOUD! 22 July 2013: Glass flotation spheres imploded on the Jason (Remotely Operated Vehicle) elevator at the wellhead of the CORK in Hole 1362B in Cascadia Basin. The initial implosion, which was loud enough to saturate the hydrophone, and following 10 reflections (echos) were recorded by an Ocean Sonics icListen low frequency hydrophone deployed at 2662m depth at our Cascadia Basin node (http://www.oceannetworks.ca/installations/observatories/northeast-pacific/cascadia-basin). The implosion had enough force to knock the Jason elevator off the wellhead. As indicated by the areas of white and red shading, the initial pressure wave and first echo or reflection from the surface saturated the hydrophone at Cascadia Basin. Sound waves traveled upward through the water column to the ocean surface 2.7 km above the implosion site and were then reflected back down to the seafloor where they were detected by the hydrophone. Each echo represents a 5.4 km round trip, or 54 km for the series of 10 echoes.

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