The 5M Seismic Network, 2018–2020

 
Cite as:
Heit, B.; Yuan, X.; Almendros, J.; Abella, R.; Carmona, E.; Aguí, F.; Carrión, P. (2020): BRAVOSEIS Onshore Seismic Array. GFZ Data Services. Other/Seismic Network. doi:10.14470/0Z7563857972.
Network code:
5M
Type:
Temporary
Time Range:
2018–2020
Terms of use:
Restricted until 03/2024
Archived at:
GFZ
Institution(s):
German Research Centre for Geosciences GFZ, Potsdam, Germany , University of Granada, Granada, Spain , National Geographic Institute, Madrid, Spain
Creator(s):
Heit, B.; Yuan, X.; Almendros, J.; Abella, R.; Carmona, E.; Aguí, F.; Carrión, P.
Description*:
BravoSeis
Abstract:
The Bransfield Strait is a seismically active extensional rift located between the Antarctic Peninsula and the South Shetland Islands. The Strait is partly located on continental crust including areas within the transition to seafloor spreading. The amphibious seismic network BRAVOSEIS is an international effort focused on the seismological research of submarine volcanoes and rift dynamics in the Bransfield Strait. This network is the onshore component of the entire network consisting of 15 broadband land stations deployed in the South Shetland Islands and Antarctic Peninsula between January 2018 and February 2020. The offshore components (network code ZX) include 9 broadband ocean bottom seismometers (OBS) across the Central Bransfield Basin and a group of 6 hydrophone moorings spanning the rift area of 200 x 100 km2, with inter-station distance of ~30 km. Additionally, a smaller offshore array consisting of 15 short-period OBSs with an aperture of 20 km and a narrow inter-station distance of ~4 km was deployed around the Orca submarine volcanic edifice south of King George Island. The data will be used to study the geodynamics of the Bransfield Strait and the evolution of the incipient rifting zone in the domain where extension has been suggested. Seismological methods will include earthquake location, source mechanism, surface wave analysis with ambient noise and earthquake data, receiver function and shear wave splitting. The results may shed light on the crustal structure and tectonic regime in the region and image the location and extent of magma accumulations related to submarine volcanic structures. Finally, the results should provide clues to assess the internal processes that occur in the submarine volcanoes of the area undergoing rifting. Waveform data are available from the GEOFON data centre, under network code 5M and are embargoed until Mar 2024. Acknowledgments: We thank all participants in the BRAVOSEIS 2018, 2019, and 2020 cruises, with a special acknowledgement to Capt. Jose Emilio Regodon and his crew at R/V Hesperides; Capt. Juan Carlos Hernandez and his crew at Sarmiento de Gamboa; Miki Ojeda, Ezequiel Gonzalez, and all the UTM staff involved in the planification and realization of the surveys. We also thank the Spanish Polar Committee and institutions involved in the management of the Spanish Antarctic campaigns and the development of the Spanish Polar Program. We are grateful for the help and support that we always find in the personnel of the Antarctic Bases, especially the Spanish Bases Juan Carlos I and Gabriel de Castilla.

* Description is taken from seismic metadata, and may not match the preferred title for citations.
DataCite metadata:
HTML | JSON | XML | INSPIRE
Seismic metadata:
fdsnws-station
Sponsor:
Geophysical Instrument Pool Potsdam (GIPP)
Grant:
GIPP201722
Funder:
Spanish Ministry of Economy and Competitiveness (MINECO) CTM2016-77315
Network KML file:
To retrieve waveform data and metadata (including instrument responses) for this and other seismic networks, see here.

Extended Network Information for network 5M [hide/show]

Creator(s):
Heit, B.; Yuan, X.; Almendros, J.; Abella, R.; Carmona, E.; Aguí, F.; Carrión, P.
Title:
BRAVOSEIS Onshore Seismic Array
Publisher:
GFZ Data Services
Resource Type:
Other/Seismic Network
Network DOI:
doi:10.14470/0Z7563857972
Related Reference(s):
  1. Almendros, J.; Abella, R.; Carmona, E.; Agui, F.; Carrion, F.; Yuan, X.; Wilcock, W.; Wade, R.; Soule, D.; Schmidt-Aursch, M.; Dziak, R.; Roche, L.; Kane, T.; Gardner, A.; Garcia-Quiroga, D.; Heit, B.; Sondershaus, R.; Tesin, E.; Schmahl, L.; Natalie, J. (2019). Deployment of an amphibious seismic network in the Bransfield Strait, Antarctica [V20P-426]. General Assembly of the International Union of Geophysics and Geodesy (IUGG), Montreal, Canada, 8-18 JUL 2019.
  2. Davoli, R. (2019). Análisis de la sismicidad en el Estrecho de Bransfield (Antártida) durante el año 2018 y principios del año 2019. MSc Thesis, Master in Geophysics and Meteorology, University of Granada.
  3. Parera Portell, Joan A. (2019). Structure of the crust and upper mantle beneath the Bransfield Strait (Antarctica) using P receiver functions. MSc Thesis, Master in Geophysics and Meteorology, University of Granada.
  4. Almendros, J.; Carmona, E.; Carrión, F.; Serrano, I.; Teixidó, T.; Peña, J. A.; Moreno, J.; Mancilla, F.; García-Quiroga, D.; Agüí-Fernández, J. F.; Moreno-Vacas, A.; Jiménez-Morales, V.; Ontiveros, A.; Abella, R.; Sánchez, N.; Martínez-Arévalo, C.; Granja, J. L.; Heit, B.; Yuan, X.; Schmidt-Aursch, M.; Geissler, W.; Bonatto, L.; Martos, Y.; Wilcock, W. S. D.; Dziak, R.; Lees, J.; Caselli, A.; Badi, G.; Julia, J. (2018). BRAVOSEIS: un proyecto para investigar la actividad sísmica de los volcanes submarinos en el estrecho de Bransfield, Antártida. IX Simposio Español de Estudios Antárticos, Madrid, 5-7 de septiembre de 2018.
  5. Almendros, J.; Carmona, E.; Carrión, F.; Serrano, I.; Teixidó, T.; Peña, J. A.; Moreno, J.; Mancilla, F.; García-Quiroga, D.; Agüí-Fernández, J. F.; Moreno-Vacas, A.; Jiménez-Morales, V.; Ontiveros, A.; Abella, R.; Sánchez, N.; Martínez-Arévalo, C.; Granja, J. L.; Heit, B.; Yuan, X.; Schmidt-Aursch, M.; Geissler, W.; Bonatto, L.; Martos, Y.; Wilcock, W. S. D.; Dziak, R.; Lees, J.; Caselli, A.; Badi, G.; Julia, J. (2017). BRAVOSEIS: A research project to investigate the seismic activity of submarine volcanoes in the Bransfield Strait, Antarctica. 2nd Workshop of the SCAR Expert Group on Antarctic Volcanism (ANTVOLC), Barcelona, Spain, 22-24 November 2017.
[+] To provide additional references, PIs should contact GEOFON staff.

Station List for Network Code 5M

Code
Station description
Begin
End
Loc
Channels
Flags
AST
Station Astrolabe Island, Antarctic Peninsula
2018-03-01
2020-02-24
--
HHE HHN HHZ
BYE
Station Peninsula Byers, Livingston Island
2018-02-24
2020-02-14
--
HHE HHN HHZ
ERJ
Station ERJ, East of King George Island
2019-01-09
2020-02-20
--
HHE HHN HHZ
FER
Station Base Ferraz, King George Island
2019-01-08
2020-02-21
--
HHE HHN HHZ
FRE
Station Base Frei, King George Island
2018-02-27
2020-02-11
--
HHE HHN HHZ
GUR
Station Base Guruchaga, Nelson Island
2019-01-08
2020-02-20
--
HHE HHN HHZ
HMI
Station Base Camara, Half Moon Island
2019-01-07
2020-02-18
--
HHE HHN HHZ
OHI
Station Base O'Higgins, Antarctic Peninsula
2018-02-28
2020-02-25
--
HHE HHN HHZ
PEN
Station PEN, Penguin Island
2019-01-08
2020-02-12
--
HHE HHN HHZ
ROB
Station ROB, Robert Island
2019-01-07
2020-02-17
--
HHE HHN HHZ
SNW
Station SNW, Snow Island
2019-01-05
2020-02-13
--
HHE HHN HHZ
TOW
Station Tower Island, Antarctic Peninsula
2018-03-02
2020-02-24
--
HHE HHN HHZ

Database last updated at 2020 Oct 19 11:58:10