Read the MESH expedition blog here
The R/V Roger Revelle is host to an international team of scientists who will investigate the largest historical explosive submarine eruption.
The eruption, which occurred at Havre Volcano between New Zealand and Tonga in July 2012, is thought to have produced a bulk erupted deposit volume of about 1.5 cubic kilometers. This is 1.5 times the volume of the Mount St. Helens eruption on 18 May 1980, or about 10 times the volume of the 2010 Eyjafjallajökull eruption in Iceland.
The eruption of magma in deep submarine settings is poorly understood, and this research cruise provides a rare and important opportunity to better understand Earth processes. The precise role of hydrostatic pressure (the weight of the overlying water column) in modulating eruptive dynamics is unknown. In fact, had this explosive eruption not been discovered, it would likely not have been predicted because of the prevailing idea that hydrostatic pressure at the eruption depth (which exceeds 9 megapascals) can significantly suppress explosivity.
You can follow the progress of Chief Scientist Adam Soule, Principal Investigators Rebecca Carey and Bruce Houghton, and the international team of scientists, technicians and engineers aboard Roger Revelle as they explore the eruption site using the Remotely Operated Vehicle Jason and the Autonomous Underwater Vehicle Sentry:
![](https://scripps.ucsd.edu/sites/scripps.ucsd.edu/files/basic-page/field-body-images-and-text/2015/NSF-Logo-01.100x100_0.jpg)
Research vessel operations at Scripps Institution of Oceanography are supported by the National Science Foundation (Awards 1119644, 1212770, 1227624, and 1321002).
![](https://scripps.ucsd.edu/sites/scripps.ucsd.edu/files/basic-page/field-body-images-and-text/2015/ONR-logo.100x100_0.jpg)
R/V Roger Revelle is operated by Scripps Institution of Oceanography under a charter agreement with the Office of Naval Research. Roger Revelle is one of six major oceanographic research vessels owned by the U.S. Navy and operated within the University-National Oceanographic Laboratory System as shared-use research facilites.
- R/V Sally Ride
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R/V Roger Revelle
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Handbook
- Section 1: Welcome Aboard
- Section 2: Specifications
- Section 3: Vessel Layout Description
- Section 4: Ship's and Scientific Equipment Description
- Section 5: Technical Services and Special Equipment
- Section 6: Navigation and Communications Capability
- Section 7: Safety
- Section 8: Ship Organization
- Section 9: Scientific Berthing Plan
- Specifications
- Schematic Drawings
- Berthing Plan
- Scientific Equipment
- Major Shipboard Equipment
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Handbook
- R/V Robert Gordon Sproul
- R/V Bob and Betty Beyster
- Emerit: R/V Melville
- Emerit: R/V New Horizon
- Emirit: Research Platform FLIP
- Preventing harassment and discrimination
- Alcohol and illegal drugs: Zero tolerance
- Departure & arrival times
- Pregnancy and Lactation at Sea
- Accommodating Disabilities
- Minimum Age At Sea
- Isotope Use on Scripps Ships
- Geophysical survey requirements in California waters
- Export controls and compliance
- Scientific shipments to Scripps vessels
- Ship to Shore Communications
- Internet use policy
- Winch and Wire Regulations
- Ship Usage Rates
- Data and Sample Distribution Policy
- Stable Isotopes on SIO Ships
- Carryforward of Ship Time
- Using non-UNOLS vessels
- Transportation Worker's Identification Credential (TWIC)
- Naval Clearances
- Notice to mariners
- Volunteering Aboard Scripps Ships
- USCG Rules for Buoys