Map of California & Nevada earthquakes

As of 2/27/2009, MOBB is sending data in real time and has been incorporated into the Berkeley Digital Seismic Network. For current MOBB information, please see the station page for MOBB.

The BSL has collaborated with the Monterey Bay Aquarium Research Institute (MBARI) in two experiments on ocean-bottom instrumentation:

• Monterey Bay Ocean Bottom International Seismic Experiment (MOISE)
• Monterey Ocean Bottom Broadband (MOBB) Project

The MOISE and MOBB deployments are multi-purpose experiments to develop, install, and operate a seafloor observatory. The MOISE experiment was conducted from 6/10/1997 - 9/10/1997 and all equipment was successfully recovered. The MOBB deployment began on 4/12/2002 and is planned as a permanent installation. The MOBB seismometer package and its installation are supported by NSF (EAR-9911392).

Network Codes

BK (also includes the BDSN, NHFN, MPBO)

Typical Station Equipment

Guralp Broadband seismometer
Magnetometer (MOISE only)
Current Meter
Pressure Meter

Typical Recorded Channels

As part of this collaboration, the borehole sites will have two sets of digital data loggers. The table below lists which channels will be recorded and the SEED network and location codes which will be used.

Sensor	Channel Code	Rate (samples/sec)
Guralp broadband	BHZ, BHN, BHE	20
Guralp mass position	LMZ, LMN, LME	1.25
Temperature	LKI, LKO	1.25
Current direction	UOD	1/300
Current speed	UOS	1/300
Relative pressure	UD1	1/300

Station and Channel Information

• Map of OBS stations
• BK Information Directory, including
  • List of station locations
  • List of available channels
    • Year/month/day format
    • Year,doy format
• Instrument Response
  • BK - SEED format
  • BK Simplified Responses

Data access

The preliminary data are available in daily MiniSEED format, and can be retrieve by either HTTP or FTP protocols from the following directories:

• http://www.ncedc.org/ftp/pub/obs/
• ftp://www.ncedc.org/pub/obs/

Reports

• Reports on the ocean-bottom projects from the Annual Report of the BSL:
  • 2001-2002 - MOBB
  • 1997-1998 - Moise
• AGU poster from the Fall '02 meeting (PDF)

Collaborations

MOISE is an international cooperative program among

• Berkeley Seismological Laboratory
• Monterey Bay Aquarium Research Insitute
• Institut de Physique du Globe de Paris (IPGP)
• Division Technique de l'Institut National des Sciences de l'Univers (DT/INSU)
• Laboratoire de Geophysique Marine of the Universite de Bretagne Occidentale (UBO)

MOBB is a collaboration among

• Berkeley Seismological Laboratory
• Monterey Bay Aquarium Research Insitute
• National Science Foundation

Other useful links

MBARI has considerable information about the MOISE and MOBB deployments available through their Web site:

• MOISE
• MOBB