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  • 1
    Description / Table of Contents: Active tectonics, earthquakes and palaeoseismicity in slowly deforming continents / Angela Landgraf, Simon Kübler, Esther Hintersberger and Seth Stein / Geological Society, London, Special Publications, 432, 1-12, 20 September 2016, https://doi.org/10.1144/SP432.13 --- Seismology and Hazard --- Challenges in assessing seismic hazard in intraplate Europe / Seth Stein, Mian Liu, Thierry Camelbeeck, Miguel Merino, Angela Landgraf, Esther Hintersberger and Simon Kübler / Geological Society, London, Special Publications, 432, 13-28, 4 November 2015, https://doi.org/10.1144/SP432.7 --- The largest expected earthquake magnitudes in Central Asia: statistical inference from an earthquake catalogue with uncertain magnitudes / Gert Zöller, Shahid Ullah, Dino Bindi, Stefano Parolai and Natalya Mikhailova / Geological Society, London, Special Publications, 432, 29-40, 4 November 2015, https://doi.org/10.1144/SP432.3 --- Instrumental magnitude constraints for the 11 July 1889, Chilik earthquake / Frank Krüger, Galina Kulikova and Angela Landgraf / Geological Society, London, Special Publications, 432, 41-72, 20 November 2015, https://doi.org/10.1144/SP432.8 --- Intraplate seismicity in mid-plate South America: correlations with geophysical lithospheric parameters / Hans Agurto-Detzel, Marcelo Assumpção, Marcelo Bianchi and Marlon Pirchiner / Geological Society, London, Special Publications, 432, 73-90, 2 November 2015, https://doi.org/10.1144/SP432.5 --- Groundwater recharge as the trigger of naturally occurring intraplate earthquakes / John K. Costain / Geological Society, London, Special Publications, 432, 91-118, 12 April 2016, https://doi.org/10.1144/SP432.9 --- Earthquake Geology --- Views on the dialectics between seismology and palaeoseismology with examples from southern Scandinavia / Nils-Axel Mörner / Geological Society, London, Special Publications, 432, 119-126, 29 October 2015, https://doi.org/10.1144/SP432.1 --- Active faulting in a populated low-strain setting (Lower Rhine Graben, Central Europe) identified by geomorphic, geophysical and geological analysis / S. Kübler, R. Streich, E. Lück, M. Hoffmann, A. M. Friedrich and M. R. Strecker / Geological Society, London, Special Publications, 432, 127-146, 4 August 2016, https://doi.org/10.1144/SP432.11 --- Seismic slip on the west flank of the Upper Rhine Graben (France–Germany): evidence from tectonic morphology and cataclastic deformation bands / Zoe K. Shipton, Mustapha Meghraoui and Louise Monro / Geological Society, London, Special Publications, 432, 147-161, 16 September 2016, https://doi.org/10.1144/SP432.12 --- The Cadell Fault, southeastern Australia: a record of temporally clustered morphogenic seismicity in a low-strain intraplate region / D. Clark, A. McPherson, M. Cupper, C. D. N. Collins and G. Nelson / Geological Society, London, Special Publications, 432, 163-185, 18 November 2015, https://doi.org/10.1144/SP432.2 --- The Egiin Davaa prehistoric rupture, central Mongolia: a large magnitude normal faulting earthquake on a reactivated fault with little cumulative slip located in a slowly deforming intraplate setting / R. T. Walker, K. W. Wegmann, A. Bayasgalan, R. J. Carson, J. Elliott, M. Fox, E. Nissen, R. A. Sloan, J. M. Williams and E. Wright / Geological Society, London, Special Publications, 432, 187-212, 18 November 2015, https://doi.org/10.1144/SP432.4 --- Seismites as indicators for Holocene seismicity in the northeastern Ejina Basin, Inner Mongolia / Andreas Rudersdorf, Kai Hartmann, Kaifeng Yu, Georg Stauch and Klaus Reicherter / Geological Society, London, Special Publications, 432, 213-231, 29 October 2015, https://doi.org/10.1144/SP432.6 --- Surface rupture of the 1911 Kebin (Chon–Kemin) earthquake, Northern Tien Shan, Kyrgyzstan / J. Ramón Arrowsmith, Christopher J. Crosby, Andrey M. Korzhenkov, Ernest Mamyrov, Irina Povolotskaya, Benny Guralnik and Angela Landgraf / Geological Society, London, Special Publications, 432, 233-253, 20 July 2016, https://doi.org/10.1144/SP432.10
    Pages: Online-Ressource (261 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 9781862399648
    Language: English
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  • 2
    Publication Date: 2007-01-24
    Print ISSN: 1570-761X
    Electronic ISSN: 1573-1456
    Topics: Geosciences
    Published by Springer
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  • 3
    Publication Date: 2020-01-01
    Description: Aftershock identification plays an important role in the assessment and characterization of large earthquakes. Especially, the length of the aftershock sequence is an important aspect of declustering earthquake catalogues and therefore impacts the frequency of earthquakes in a certain region, which is important for future seismic hazard assessment. However, in intraplate regions with low deformation rates and low to moderate seismicity, it is still questionable if aftershocks after a major event may continue for much longer time. In this study, we use one of the earliest instrumentally recorded earthquakes, the 1906 Dobrá Voda earthquake (Ms/Imax=5.7/VIII-IX), to compare different approaches of aftershock determination and their suitability for understanding the recorded earthquake sequence. The Dobrá Voda segment of the Vienna Basin Transfer Fault System is one of the seismically most active zones in Slovakia with the 1906 earthquake as the strongest recorded earthquake. We first assess the epicentral intensity of the earthquake according to the Environmental Intensity Scale (ESI2007) using contemporary descriptions of earthquake effects. This additional information leads to constrain the maximal intensity to IESI2007=IX. This result agrees well with first the assessment of Imax in 1907 and indicates the reliability of this intensity data. In the second step, earthquake data are plotted for two spatial windows extending 13 km and 26 km from the epicenter of the mainshock, respectively. Despite uncertainties regarding the completeness of data due to war times and lack of nearby seismic stations, the overall temporal evolution of seismicity can apparently not be described as an Omori-type aftershock sequence following the event in 1906. Instead, earthquake occurrence within 13 km of the mainshock shows elevated earthquake activity right after the 1906 event that only decays to a lower level of activity within decades after the mainshock. The decline of seismicity therefore occurs over time scales which are much longer than those predicted by the Omori relation. We conclude that today’s seismic activity may still be affected by the 1906 earthquake.
    Print ISSN: 0251-7493
    Electronic ISSN: 2072-7151
    Topics: Geosciences
    Published by De Gruyter
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  • 4
    Publication Date: 2016-09-20
    Print ISSN: 0305-8719
    Electronic ISSN: 2041-4927
    Topics: Geosciences
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  • 5
    Publication Date: 2015-11-04
    Print ISSN: 0305-8719
    Electronic ISSN: 2041-4927
    Topics: Geosciences
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  • 6
    Publication Date: 2017-05-15
    Description: Including faults into seismic hazard assessment depends strongly on their level of seismic activity. Intraplate regions are characterized by low seismicity, so that the evaluation of existing earthquake catalogues does not necessarily reveal all active faults that contribute to seismic hazard. In the Vienna Basin (Austria), moderate historical seismicity (Imax/Mmax = 8/5.2) concentrates along the left-lateral strike-slip Vienna Basin Transfer Fault (VBTF). In contrast, several normal faults branching out of the VBTF show neither historical nor instrumental earthquake records, although geomorphological data indicate Quaternary displacement along those faults. Here, we present a palaeoseismological dataset of three trenches crossing one of these splay faults, the Markgrafneusiedl Fault (MF), in order to evaluate the seismic potential of the fault. Comparing the observations of the different trenches, we found evidence for 5–6 major surface-breaking earthquakes during the last 120 ka, with the youngest event occurring at around ~ 14 ka before present. The inferred surface displacements lead to magnitude estimates ranging between M = 6.2 ± 0.3 and M = 6.8 ± 0.1. Data can be interpreted by two possible event lines, with event line 1 showing more regular recurrence intervals of about 20–25 ka between the earthquakes with M ≥ 6.5, and event line 2 indicating that such earthquakes cluster in two time intervals in the last 120 ka. Event line 2 appears more plausible. Trench observations also show that structural and sedimentological records of strong earthquakes with small surface offset have only low conservation potential. Vertical slip rates of 0.03–0.04 mm/a derived from the trenches compare well to geomorphically derived slip rates of 0.015–0.085 mm/a. Magnitude estimates from fault dimensions suggest that the largest earthquakes observed in the trenches activated the entire fault surface of the MF including the basal detachment that links the normal fault with the VBTF. The most important implications of these paleoseismological results for seismic hazard assessment are that: (1) The MF needs to be considered as a seismic source irrespective of the fact that it did not release historical earthquakes. (2) The maximum credible earthquakes in the Vienna Basin should be considered to be about M = 7.0. (3) The MF is kinematically and geologically equivalent to a number of other splay faults of the VBTF. It must be assumed that these faults are potential sources of large earthquakes as well. The frequency of strong earthquakes near Vienna is therefore expected to be significantly higher than the earthquake frequency reconstructed for the MF.
    Electronic ISSN: 2195-9269
    Topics: Geography , Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 7
    Publication Date: 2018-02-21
    Description: Intraplate regions characterized by low rates of seismicity are challenging for seismic hazard assessment, mainly for two reasons. Firstly, evaluation of historic earthquake catalogues may not reveal all active faults that contribute to regional seismic hazard. Secondly, slip rate determination is limited by sparse geomorphic preservation of slowly moving faults. In the Vienna Basin (Austria), moderate historical seismicity (Imax,obs/Mmax,obs=8/5.2) concentrates along the left-lateral strike-slip Vienna Basin Transfer Fault (VBTF). In contrast, several normal faults branching out from the VBTF show neither historical nor instrumental earthquake records, although geomorphological data indicate Quaternary displacement along those faults. Here, located about 15 km outside of Vienna, the Austrian capital, we present a palaeoseismological dataset of three trenches that cross one of these splay faults, the Markgrafneusiedl Fault (MF), in order to evaluate its seismic potential. Comparing the observations of the different trenches, we found evidence for five to six surface-breaking earthquakes during the last 120 kyr, with the youngest event occurring at around 14 ka. The derived surface displacements lead to magnitude estimates ranging between 6.2±0.5 and 6.8±0.4. Data can be interpreted by two possible slip models, with slip model 1 showing more regular recurrence intervals of about 20–25 kyr between the earthquakes with M≥6.5 and slip model 2 indicating that such earthquakes cluster in two time intervals in the last 120 kyr. Direct correlation between trenches favours slip model 2 as the more plausible option. Trench observations also show that structural and sedimentological records of strong earthquakes with small surface offset have only low preservation potential. Therefore, the earthquake frequency for magnitudes between 6 and 6.5 cannot be constrained by the trenching records. Vertical slip rates of 0.02–0.05 mm a−1 derived from the trenches compare well to geomorphically derived slip rates of 0.02–0.09 mm a−1. Magnitude estimates from fault dimensions suggest that the largest earthquakes observed in the trenches activated the entire fault surface of the MF including the basal detachment that links the normal fault with the VBTF. The most important implications of these palaeoseismological results for seismic hazard assessment are as follows. (1) The MF is an active seismic source, capable of rupturing the surface despite the lack of historical earthquakes. (2) The MF is kinematically and geologically equivalent to a number of other splay faults of the VBTF. It is reasonable to assume that these faults are potential sources of large earthquakes as well. The frequency of strong earthquakes near Vienna is therefore expected to be significantly higher than the earthquake frequency reconstructed for the MF alone. (3) Although rare events, the potential for earthquake magnitudes equal or greater than M=7.0 in the Vienna Basin should be considered in seismic hazard studies.
    Print ISSN: 1561-8633
    Electronic ISSN: 1684-9981
    Topics: Geography , Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 8
  • 9
    Publication Date: 2012-11-01
    Print ISSN: 1040-6182
    Electronic ISSN: 1873-4553
    Topics: Geography , Geosciences
    Published by Elsevier
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