Seismic network at Deception Island Volcano, Antarctica, 2014/2015

Brief description

This dataset comprises data from a five-station seismic network deployed at Deception Island volcano, Antarctica, from December 2014 to February 2015. This network is deployed during summer surveys, coinciding with the operations of the Spanish Base Gabriel de Castilla. More details can be found in Carmona et al (2014). The purpose of the network is to assess the seismo-volcanic activity at Deception Island volcano, continue with the long-term data series of seismo-volcanic activity that we maintain since 1994, investigate the internal processes that take place at Deception Island, and colaborate in the management of the volcanic alert system.

The selected period contains earthquake data from a seismic swarm that occurred in the Bransfield Strait, near Livingston Island (Almendros et al. 2015, 2018). The swarm started in September 2014, therefore the dataset contains just a part of the tail of the Livingston seismic series, from December 2014 to February 2015. Additionally, the dataset includes volcano-tectonic earthquakes that occurred at Deception Island, most likely as a response to the perturbations induced by the Livingston seismic swarm. More information can be found in Almendros et al. (2018).

DATA FORMAT
Raw seismograms in miniseed format (e.g. http://ds.iris.edu/ds/nodes/dmc/data/formats)

DIRECTORY STRUCTURE
Data are single-channel, one-day-long seismograms. Files are named and stored in a directory structure following the SEISCOMP3 SDS convention (http://www.seiscomp3.org/wiki/doc/applications/slarchive/SDS): ROOTDIR/YYYY/NET/STAT/CHAN.TYPE/NET.STA.LOC.CHAN.TYPE.YYYY.DDD
ROOTDIR is the base folder where the data are stored, YYYY is the year, NN is the network code, STAT is the station name, CHAN is the code to identify the station channels, TYPE is a single character indicating the data type (set to D for waveform data), LOC is the location name (left empty), and DDD is the day of year.

STATION NAMES
BASE west of Gabriel de Castilla Base; C70 craters of the 1970 eruption; CHI Chilean Hut south of Pendulum Cove; FUM south beach of Fumarole Bay; OBS north of Obsidians Beach

STATION COORDINATES
BASE 60.6767W 62.9775S; C70 60.6313W 62.9222S; CHI 60.5967W 62.9447S; FUM 60.7073W 62.9717S; OBS 60.6892W 62.9395S

INSTRUMENTS
All stations are equipped with three-component, short-period seismometers, and a 24-bit SARA SL04 data acquisition system sampling at 100 sps. BASE, C70: Lennartz 3D/5s seismometer, natural frequency 0.2 Hz. OBS, CHI: Mark L4C seismometer, natural frequency 1 Hz. FUM: Mark L-28 seismometer, natural frequency extended to 1 Hz. More information can be found in Carmona et al (2014).

RECORDING PERIODS
BASE 2014-12-01 to 2015-02-24; C70 2014-12-14 to 2015-02-12; CHI 2014-12-08 to 2015-02-12; FUM 2014-12-21 to 2015-02-20; OBS 2014-12-01 to 2015-02-21

SUPPORTING PROJECTS
POL2006-08663 (CORSHET project, Spanish Ministry of Education); CTM2009-07705, CTM2009-08085, CTM2010-11740, CTM2011-16049 (Spanish Ministry of Science and Education); Research Grant IGME1198 2014-2015, 2015-2016, 2016-2017, 2017-2018 (Spanish Polar Committee, Spanish Ministry of Economy); CTM2016-77315 (BRAVOSEIS project, Spanish Ministry of Economy)

REFERENCES
Carmona, E., Almendros, J., Martín, R., Cortés, G., Alguacil, G., Moreno, J., Martín,
B., Martos, A., Serrano, I., Stich, D., Ibáñez, J. M. , Advances in seismic monitoring at Deception Island volcano (Antarctica) since the International Polar Year , Annals of Geophysics 57(3), SS0321, doi:10.4401/ag-6378 (2014)
Almendros, J., Carmona, E., Jimenez, V., Díaz-Moreno, A., Lorenzo, F., Berrocoso, M., De Gil, A., Fernández-Ros, A., Rosado, B. , Deception Island: Sustained deformation and large increase in seismic activity during the 2014-2015 survey , Bulletin of the Global Volcanism Network, 40(7) (2015)
Almendros, J., Carmona, E., Jimenez, V., Díaz-Moreno, A., Lorenzo, F., Volcano-tectonic activity at Deception Island volcano following a seismic swarm in the Bransfield Rift (2014-2015), submitted for publication (2018).