Our First Look at Primary Node 3B

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In the wee hours of the morning (July 10), we got our first look at Primary Node 3B since its installation by L3 MariPro in the summer of 2012. On deck, ROPOS latched into the secondary junction box, MJ01A, and under calm seas the ROV descended with it, safely latched to its underbelly to a depth of 2609 m beneath the oceans surface. The J-Box, was deployed on the seafloor 50 meters away from the Primary Node and then ROPOS flew over to the Primary Node to get our first glimpse. This Primary Node, is located at the base of Axial Volcano and will support two instrumented water column moorings next year that rise ~2600 m into the overlying ocean, as well as geophysical sensors to provide real-time detection of earthquakes far field, as well as more local earthquakes associated with migration of melt deep within the volcano. On the follow-on dive (Dive 1599), ROPOS will deploy ~ 600 m of cable from PN3A to the site where a secondary node, geophysical sensors, and the moorings will be deployed next year.