(2024). Microseismicity catalogs for Lucky Strike volcano summit region, Mid-Atlantic Ridge from the EMSO-Azores observatory, 2007-2019. SEANOE. https://doi.org/10.17882/97285
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Microseismicity catalogs for Lucky Strike volcano summit region, Mid-Atlantic Ridge from the EMSO-Azores observatory, 2007-2019
This dataset contains microseismicity catalogs for Lucky Strike volcano summit region, Mid-Atlantic Ridge for seven deployments between 2007 and 2019 from a network of five ocean bottom seismometers deployed surrounding the volcano summit. The datafiles are in QUAKEML format. Instrument’s locations, their specifications and earthquake location methods are described in the metadata file.
Disciplines
Marine geology
Keywords
Mid-Atlantic Ridge, EMSO-Azores, Hydrothermal vents, Lucky Strike, Ocean Bottom Seismometers, OBS, SPOBS, Seismicity, Microseismicity, Time-series, MoMAR, MoMARSAT
Location
37.34N, 37.26S, -32.24E, -32.32W
Devices
Parameter
- Seismic event locations
Location
- Regional node: Emso-Azores
- Site: Lucky Strike hydrothermal field
- Coordinates : [37.26 : 37.34, -32.32 : -32.24]
Installation & Recovery
OBSs were deployed and recovered every year. (All cruises are mentioned below)
Cruise:
CRAWFORD Wayne (2007) BBMOMAR cruise, RV Le Suroît, https://doi.org/10.17600/7020060
BEGUERY Laurent (2008) BBMOMAR2 cruise, RV Le Suroît, https://doi.org/10.17600/8020030
ESCARTIN Javier, CANNAT Mathilde (2009) BATHYLUCK 2009 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/9030040
SARRADIN Pierre-Marie, BLANDIN Jérôme, ESCARTIN Javier (2010) MOMARSAT2010 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/10030100
CANNAT Mathilde, BLANDIN Jérôme, SARRADIN Pierre-Marie (2011) MOMARSAT2011 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/11030070
CANNAT Mathilde, SARRADIN Pierre-Marie (2012) MOMARSAT2012 cruise, RV Thalassa, https://doi.org/10.17600/12040050
BLANDIN Jérôme, SARRADIN Pierre-Marie, CANNAT Mathilde (2013) MOMARSAT2013 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/13030040
SARRADIN Pierre-Marie, CANNAT Mathilde (2014) MOMARSAT2014 cruise, RV Pourquoi pas ? https://doi.org/10.17600/14000300
SARRADIN Pierre-Marie, CANNAT Mathilde (2015) MOMARSAT2015 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/15000200
CANNAT Mathilde, SARRADIN Pierre-Marie (2016) MOMARSAT2016 cruise, RV L'Atalante, https://doi.org/10.17600/16001200
SARRADIN Pierre-Marie, CANNAT Mathilde (2017) MOMARSAT2017 cruise, RV Pourquoi pas ? https://doi.org/10.17600/17000500
CANNAT Mathilde (2018) MOMARSAT2018 cruise, RV L'Atalante, https://doi.org/10.17600/18000514
SARRADIN Pierre-Marie, LEGRAND Julien (2019) MOMARSAT2019 cruise, RV Pourquoi pas ? https://doi.org/10.17600/18001110
SARRADIN Pierre-Marie, LEGRAND Julien (2020) MOMARSAT2020 cruise, RV Pourquoi pas ?, https://doi.org/10.17600/18000684
Operating parameters
- Sampling frequency for the OBSs is 62.5 Hz except one OBS (250 Hz) in the deployment year 2018-2019. See the metadata file for details.
Operators
INSU-IPGP OBS Park:
- Romuald Daniel
- Simon Besançon
- Tom Dumouch
- David Hautemayou
Sensor metadata
- INSU-IPGP short period OBSs (SPOBSs) contain a 3-component geophone (Sercel L28) and a hydrophone (High Tech-90-U), while IPGP broad band OBSs (BBOBSs) contain a 3-component Trillium T240 seismometer and a differential pressure sensor. 2007-2008, 2008-2009 & 2018-2019 deployments have 4 IPGP SPOBSs and 1 IPGP BBOBS (See the metadata file for their exact locations).
- For the 2010-2011 deployment, earthquakes are located with additional 3 University of Lisbon SPOBSs (sampling frequency 100Hz) along with 5 IPGP SPOBS (See the metadata file for their locations).
Sensor setup
- Test and calibration: The internal clocks for the OBSs are synchronized on deployment and recovery. The timestamps are corrected by assuming a linear drift between synchronizations.
Data Information
Data is provided for each deployment in two files: one containing the absolute earthquake locations located in NonLinLoc and a second data file containing the relative earthquake locations relocated in HypoDD. All earthquakes’ depths are w.r.t the sea level (Average seafloor depth in this region is ~1900m).
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