Current expedition

Deep-Sea Habitats in the Mariana Islands II

July 25 – August 16, 2026
Current Status
Sonar Mapping
Update
As Super Typhoon Dolphin moves through the northern end of the Mariana Island chain and into our planned operating area, we are mapping safely south in the Caroline Islands, out of dangerous wind and swell conditions. We will assess conditions for an AUV + ROV or ROV dive tomorrow around 10 am Guam time!  More exploration soon! 
13 hours 23 minutes ago
Ship Location
Federated States of Micronesia
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Seafloor Mapping FSM
Credit
A. Flinders, USGS

After moving out of the region around the Mariana Islands impacted by Super Typhoon Dolphin’s heightened wind and swells, we are now safely in the EEZ of the Federated States of Micronesia (FSM). We are grateful to have been granted a permit by the National Oceanic Resource Management Authority of the Federated States of Micronesia (FSM NORMA) to assist them in gathering mapping data and potentially ROV and AUV surveys within priority regions (black lines) of their national waters. Orange icons indicate previous deep-sea observations of the seafloor in FSM dating back to the 1960s from Lamont-Doherty Earth Observatory's R/V Vema. There's an enormous amount left to learn about this massive ocean nation.