Progress report
| 
31 May 2017
Progress report |
| 31 May 2017
GONAF – the borehole Geophysical Observatory at the North Anatolian Fault in the eastern Sea of Marmara
GFZ German Research Centre for Geosciences, Section 4.2
“Geomechanics and Rheology”, Potsdam, 14473, Germany
Free University Berlin, Department of Earth Sciences, Berlin,
12249, Germany
Georg Dresen
GFZ German Research Centre for Geosciences, Section 4.2
“Geomechanics and Rheology”, Potsdam, 14473, Germany
Ulubey Ceken
AFAD Disaster and Emergency Management Presidency,
Earthquake Department Ankara, 06510, Turkey
Filiz Tuba Kadirioglu
AFAD Disaster and Emergency Management Presidency,
Earthquake Department Ankara, 06510, Turkey
Recai Feyiz Kartal
AFAD Disaster and Emergency Management Presidency,
Earthquake Department Ankara, 06510, Turkey
Tugbay Kilic
AFAD Disaster and Emergency Management Presidency,
Earthquake Department Ankara, 06510, Turkey
Murat Nurlu
AFAD Disaster and Emergency Management Presidency,
Earthquake Department Ankara, 06510, Turkey
Kenan Yanik
AFAD Disaster and Emergency Management Presidency,
Earthquake Department Ankara, 06510, Turkey
Digdem Acarel
GFZ German Research Centre for Geosciences, Section 4.2
“Geomechanics and Rheology”, Potsdam, 14473, Germany
Fatih Bulut
GFZ German Research Centre for Geosciences, Section 4.2
“Geomechanics and Rheology”, Potsdam, 14473, Germany
Hisao Ito
Japan Agency for
Marine-Earth Science and Technology (JAMSTEC), Yokohama, 236-0001, Japan
Wade Johnson
UNAVCO, Boulder, Colorado 80301, USA
Peter Eric Malin
GFZ German Research Centre for Geosciences, Section 4.2
“Geomechanics and Rheology”, Potsdam, 14473, Germany
Dave Mencin
UNAVCO, Boulder, Colorado 80301, USA
Related authors
Patricia Martínez-Garzón, Dirk Becker, Jorge Jara, Xiang Chen, Grzegorz Kwiatek, and Marco Bohnhoff
Solid Earth, 14, 1103–1121, https://doi.org/10.5194/se-14-1103-2023, https://doi.org/10.5194/se-14-1103-2023, 2023
Short summary
Short summary
We analyze the 2022 MW 6.0 Gölyaka sequence. A high-resolution seismicity catalog revealed no spatiotemporal localization and lack of immediate foreshocks. Aftershock distribution suggests the activation of the Karadere and Düzce faults. The preferential energy propagation suggests that the mainshock propagated eastwards, which is in agreement with predictions from models, where the velocity in the two sides of the fault is different.
Audrey Bonnelye, Pierre Dick, Marco Bohnhoff, Fabrice Cotton, Rüdiger Giese, Jan Henninges, Damien Jougnot, Grzegorz Kwiatek, and Stefan Lüth
Adv. Geosci., 58, 177–188, https://doi.org/10.5194/adgeo-58-177-2023, https://doi.org/10.5194/adgeo-58-177-2023, 2023
Short summary
Short summary
The overall objective of the CHENILLE project is to performed an in-situ experiment in the Underground Reaserch Laboratory of Tournemire (Southern France) consisting of hydraulic and thermal stimulation of a fault zone. This experiment is monitored with extensive geophysical means (passive seismic, active seismic, distributed fiber optics for temperature measurements) in order to unravel the physical processes taking place during the stimulation for a better charactization of fault zones.
Patricia Martínez-Garzón, Dirk Becker, Jorge Jara, Xiang Chen, Grzegorz Kwiatek, and Marco Bohnhoff
Solid Earth, 14, 1103–1121, https://doi.org/10.5194/se-14-1103-2023, https://doi.org/10.5194/se-14-1103-2023, 2023
Short summary
Short summary
We analyze the 2022 MW 6.0 Gölyaka sequence. A high-resolution seismicity catalog revealed no spatiotemporal localization and lack of immediate foreshocks. Aftershock distribution suggests the activation of the Karadere and Düzce faults. The preferential energy propagation suggests that the mainshock propagated eastwards, which is in agreement with predictions from models, where the velocity in the two sides of the fault is different.
Audrey Bonnelye, Pierre Dick, Marco Bohnhoff, Fabrice Cotton, Rüdiger Giese, Jan Henninges, Damien Jougnot, Grzegorz Kwiatek, and Stefan Lüth
Adv. Geosci., 58, 177–188, https://doi.org/10.5194/adgeo-58-177-2023, https://doi.org/10.5194/adgeo-58-177-2023, 2023
Short summary
Short summary
The overall objective of the CHENILLE project is to performed an in-situ experiment in the Underground Reaserch Laboratory of Tournemire (Southern France) consisting of hydraulic and thermal stimulation of a fault zone. This experiment is monitored with extensive geophysical means (passive seismic, active seismic, distributed fiber optics for temperature measurements) in order to unravel the physical processes taking place during the stimulation for a better charactization of fault zones.
Carolin M. Boese, Grzegorz Kwiatek, Thomas Fischer, Katrin Plenkers, Juliane Starke, Felix Blümle, Christoph Janssen, and Georg Dresen
Solid Earth, 13, 323–346, https://doi.org/10.5194/se-13-323-2022, https://doi.org/10.5194/se-13-323-2022, 2022
Short summary
Short summary
Hydraulic stimulation experiments in underground facilities allow for placing monitoring equipment close to and surrounding the stimulated rock under realistic and complex conditions at depth. We evaluate how accurately the direction-dependent velocity must be known for high-resolution seismic monitoring during stimulation. Induced transient deformation in rocks only 2.5–5 m apart may differ significantly in magnitude and style, and monitoring requires sensitive sensors adapted to the frequency.
Bernhard Schuck, Anja M. Schleicher, Christoph Janssen, Virginia G. Toy, and Georg Dresen
Solid Earth, 11, 95–124, https://doi.org/10.5194/se-11-95-2020, https://doi.org/10.5194/se-11-95-2020, 2020
H. Muraoka, H. Asanuma, N. Tsuchiya, T. Ito, T. Mogi, H. Ito, and the participants of the ICDP/JBBPWorkshop
Sci. Dril., 17, 51–59, https://doi.org/10.5194/sd-17-51-2014, https://doi.org/10.5194/sd-17-51-2014, 2014
Cited articles
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Short summary
GONAF (Geophysical Observatory at the North Anatolian Fault) has been installed around the eastern Sea of Marmara section where a M>7 earthquake is pending to capture the seismic and strain activity preceding, during, and after such an anticipated event. GONAF is currently comprised of seven 300 m deep vertical seismic profiling stations and four collocated 100 m deep borehole strain meters. GONAF is the first ICDP-driven project with a primary focus on long-term fault-zone monitoring.
GONAF (Geophysical Observatory at the North Anatolian Fault) has been installed around the...
