The International District Vent Field 2 Medium-Power Jbox, supports geophysical instruments near the International District Hydrothermal Field located on the eastern rift zone within the caldera of Axial Seamount.


Site DOI and Citation Guidance

OOI assigns Digital Object Identifiers (DOIs) at the platform or site level. The DOI for the Axial Seamount International District Vent Field 2 is 10.58046/OOI-RS03INT2.

The minimum recommended citation for this site is:

NSF Ocean Observatories Initiative. (2014). Axial Seamount International District Vent Field 2, DOI: 10.58046/OOI-RS03INT2.

This follows the format NSF Ocean Observatories Initiative. (Year Published). Site title, DOI: Site DOI, where Year Published is the year OOI data collection began at the site.

We encourage data users to incorporate full citations when referencing OOI data in order to support FAIR data principles and data traceability. OOI also provides further guidance on citations, including information on adding specific data products and data access points to citations.

Data Access

The following links provide data access via Data Explorer or other methods:

Site Description

The International District Vent Field 2 Medium-Power Jbox, supports geophysical instruments near the International District Hydrothermal Field located on the eastern rift zone within the caldera of Axial Seamount. Instruments are attached to a Medium-Power J-Box and are mounted on/near the seafloor.

Instruments are designed to measure local seismic events associated with migration of melt and volatiles within the volcano, microseismic events associated with upwelling of boiling fluids beneath they hydrothermal field, as well as far-field seismic events. Instruments also measure uplift and deflation of the seafloor associated with ingress of melt within the underlying magma chamber, and collapse of the seafloor during diking-eruptive events. This site was chosen because Axial has erupted in 1988, 2011, and again in 2015. During the 2015 event, over 8,000 earthquakes were measured with the cabled geophysical array, and data were streamed live back to shore in real-time. Instruments within the nearby International District 2 site, monitors hydrothermal and biological activity within the vent field.

Seafloor instruments at the ASHES site are attached to a Medium-Power J-Box (MJ03C) through a series of extension cables. An ~ 2.2 km long extension cable from Primary Node PN3B provides the JBox with significant power (375 v) and bandwidth (1 Gbs) to operate the instruments and transmit data to shore.

Instruments

This site/platform includes the following instruments. To learn more about an instrument type, select the instrument class-series. To access relevant data streams for an instrument, the instrument code will take you to the OOI Data Portal.

Instrument Code Depth Node Instrument
Class-Series
Make & Model
RS03INT2-MJ03D-12-VEL3DB304 1,527m Medium-Power JBox (MJ03D) 3-D Single Point Velocity Meter (VEL3DB) Nobska - MAVS-4
RS03INT2-MJ03D-06-BOTPTA303 1,527m Medium-Power JBox (MJ03D) Bottom Pressure and Tilt (BOTPTA) PMEL/Chadwick - PMELcabled BPR/Tilt
RS03INT2-MJ03D-05-OBSSPA305 1,527m Medium-Power JBox (MJ03D) Short-Period Ocean Bottom Seismometer (OBSSPA) Guralp - CMG-6TF