Seismicity of Czorsztyn Lake Region: A Case of Reservoir Triggered Seismic Process?

Białoń, Wojciech; Zarzycka, Ewa; Lasocki, Stanisław

doi:10.1515/acgeo-2015-0026

Cited by 9 publications

(6 citation statements)

References 3 publications

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“…At least some of the faults were still active during the Quaternary (Baumgart-Kotarba 1996, 2001, Zuchiewicz et al 2002. The seismic data of local earthquakes recorded in the Podhale-PKB region supplied the evidence that tectonic faults in this area are still seismically active (Guterch et al 2005, Białoń et al 2015. Recent vertical movements in the area are estimated at up to + 0.5 mm per year (Vanko 1988, Vass 1998.…”

Section: Fig 8 Detailed Stratigraphic Table Of the Cretaceous Rocksmentioning

confidence: 99%

The Pieniny Klippen Belt in Poland

Golonka

Krobicki

Waśkowska

2018

geol

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The Pieniny Klippen Belt in Poland marks the Central Carpathian-North European plate suture zone. The strictly tectonic present-day confines of the Pieniny Klippen Belt are characterized as (sub)vertical faults and shear zones. A strong reduction in the space of the original sedimentary basins took place. The strike-slip-bounded tectonic blocks, thrust units, toe-thrusts and olistostromes are mixed together, resulting in the present-day mélange character where individual tectonic units are difficult to distinguish. The sedimentary rocks of the Pieniny Klippen Belt were deposited in the paleogeographic realm known as the Alpine Tethys that was divided into two basins separated by the Czorsztyn Ridge. The accretionary prism formed in front of the advancing Alcapa (Central Carpathians) terrane had overridden the Czorsztyn Ridge during the Late Cretaceous-Paleocene. The destruction of the Czorsztyn Ridge supplied huge amounts of coarse-clastic material, including olistoliths, into the Magura Basin during the Late Cretaceous-Paleocene. The rotation of the Alcapa caused the strike-slip motions which led to the deformation of the previously created nappes and development of the flower structure. Two parallel faults delineate the southern and northern limits of the Pieniny Klippen Belt. The stops in Sromowce (Macelowa and Sobczański Gorge area) allow the observation of the southern marginal zone of the Pieniny Klippen Belt, the overturned position of the rotated counterclockwise deformed rock as well as the diapiric uplift of the Pieniny rocks in a transpressional strike-slip regime. The Zawiasy (Krościenko area) stop is located in the northern marginal zone (Hulina Unit) of the Pieniny Klippen Belt along the major dextral strike-slip Dunajec Fault.

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Section: Fig 8 Detailed Stratigraphic Table Of the Cretaceous Rocksmentioning

confidence: 99%

The Pieniny Klippen Belt in Poland

Golonka

Krobicki

Waśkowska

2018

geol

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“…The most accurate values of the non-DC components were obtained from the P-wave amplitude inversion (Fojtikowa et al 2010). The work of Białoń et al (2015) and the catalog of MT solutions of the events from the Czorsztyn Lake area (IS-EPOS 2016) show that the amplitude inversion of first P-wave pulses may also be a robust tool in case of surface network recordings. Even having in mind the limitations of the method the obtained results seem to be a good first approximation of the full MT.…”

Section: Discussionmentioning

confidence: 99%

“…Niedzica dam is located at the eastern border of Orawa-Nowy Targ Basin, which is (Guterch et al 2005;Plesiewicz and Wiszniowski 2015). The seismicity of the area is considered as the triggered seismicity with delayed response (Białoń et al 2015). Currently, there are over 150 events located in this area with M L from -0.6 to 2.4.…”

Section: Moment Tensor Solutions Of Anthropogenic Earthquakesmentioning

confidence: 99%

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Full Moment Tensor Inversion as a Practical Tool in Case of Discrimination of Tectonic and Anthropogenic Seismicity in Poland

Lizurek

2016

Pure Appl. Geophys.

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Abstract-Tectonic seismicity in Poland is sparse. The biggest event was located near Myślenice in 17th century of magnitude 5.6. On the other hand, the anthropogenic seismicity is one of the highest in Europe related, for example, to underground mining in Upper Silesian Coal Basin (USCB) and Legnica Głogów Copper District (LGCD), open pit mining in ''Bełchatów'' brown coal mine and reservoir impoundment of Czorsztyn artificial lake. The level of seismic activity in these areas varies from tens to thousands of events per year. Focal mechanism and full moment tensor (MT) decomposition allow for deeper understanding of the seismogenic process leading to tectonic, induced, and triggered seismic events. The non-DC components of moment tensors are considered as an indicator of the induced seismicity. In this work, the MT inversion and decomposition is proved to be a robust tool for unveiling collapse-type events as well as the other induced events in Polish underground mining areas. The robustness and limitations of the presented method is exemplified by synthetic tests and by analyzing weak tectonic earthquakes. The spurious non-DC components of full MT solutions due to the noise and poor focal coverage are discussed. The results of the MT inversions of the human-related and tectonic earthquakes from Poland indicate this method as a useful part of the tectonic and anthropogenic seismicity discrimination workflow.

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“…The seismicity is considered as a response to fault weakening due to diffusion effects. The earthquake triggering in this region would indicate the existence of a fault or fault system being close to failure (Białoń et al 2015). Location and moment tensor are crucial in the investigation of the origins of seismogenic process related to industrial operations such as artificial reservoir exploitation.…”

Section: Introductionmentioning

confidence: 99%

Relocation of Seismic Events and Validation of Moment Tensor Inversion for SENTINELS Local Seismic Network

Białoń

Lizurek

Dec

et al. 2019

Pure Appl. Geophys.

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Seismic activity of Podhale (Poland) and Spiš (Slovakia) regions has been recognized for years. The first information about tremors from this area comes from the XVIII century. Four earthquakes, with intensity over VI in the MSK scale, were reported in 1643, 1724, 1840 and 1901. Since 1960's an instrumental measurements have been conducted. However, until 2011 no stronger tremors have been recorded in the area of artificial water reservoir Czorsztyn lake located in extremely complex geotechnical condition, between border zone of Inner and Outer Carpathians separated by Pieniny Klippen Belt. Before Czorsztyn 2D seismic survey, knowledge of tectonic boundaries and velocities was very limited. The seismic survey confirmed assumptions of a flower type faults system and provided the first 3D velocity model for this area. After a series of earthquakes, in 2013 a SENTINELS network started its operation and since that time it recorded almost 200 events. The focal mechanisms were calculated for around 20 of them. Both location and moment tensor are crucial in the investigation of the origins of seismogenic process related to industrial operations. Therefore the relocation of the events and validation of the moment tensor solutions for the SENTINELS network were conducted with the use of a 3D velocity model. The validation of mechanisms was conducted with the use of the synthetic tests based on the 1D velocity model derived from the 3D velocity model, taking into account its lateral velocity anisotropy. It was based on the synthetic amplitudes generated with the assumed normal and strike-slip faulting type, similar to the obtained solutions. The validation proved that focal mechanisms are reliable even in a sparse focal coverage and noise not exceeding 40% of the P-wave amplitude. Most of the events are normal or strike-slip with nodal planes striking NW-SE or NNE-SSW. The latter ones are in agreement with the orientation of the main discontinuities in this area.

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Seismicity of Czorsztyn Lake Region: A Case of Reservoir Triggered Seismic Process?

Cited by 9 publications

References 3 publications

The Pieniny Klippen Belt in Poland

The Pieniny Klippen Belt in Poland

Full Moment Tensor Inversion as a Practical Tool in Case of Discrimination of Tectonic and Anthropogenic Seismicity in Poland

Relocation of Seismic Events and Validation of Moment Tensor Inversion for SENTINELS Local Seismic Network

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