Three large prehistoric earthquakes in the Eastern Alps
evidenced by cave rupture and speleothem damage

J 2022

Three large prehistoric earthquakes in the Eastern Alps evidenced by cave rupture and speleothem damage

BAROŇ, Ivo, Lukas PLAN, Bernhard GRASEMANN, Rostislav MELICHAR, Ivanka MITROVIĆ-WOODELL et. al.

Základní údaje

Originální název

Three large prehistoric earthquakes in the Eastern Alps evidenced by cave rupture and speleothem damage

Autoři

BAROŇ, Ivo (garant), Lukas PLAN, Bernhard GRASEMANN, Rostislav MELICHAR (203 Česká republika, domácí), Ivanka MITROVIĆ-WOODELL, Matt ROWBERRY a Denis SCHOLZ

Vydání

Geomorphology, Elsevier B.V. 2022, 0169-555X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10505 Geology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.900

Kód RIV

RIV/00216224:14310/22:00129309

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.geomorph.2022.108242

UT WoS

000800209900002

Klíčová slova anglicky

Cave rupture; Active tectonics; Speleothem; Paleoseismology; Deep-seated gravitational slope deformation; Obir Caves; Eastern Alps

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 6. 1. 2023 13:59, Mgr. Marie Šípková, DiS.

Anotace

V originále

Spectacular geomorphic evidence of recent tectonic activity and three potentially strong prehistoric earthquakes were discovered in Obir Caves in the Karawanken Mountains. This paper presents active fault structures, geomorphic features, and the age constraints attributed to particular seismotectonic events. The 1976 Mw 6.7 Friuli earthquake about 100 km from Obir Caves caused only local speleothem damage. The 100 km hypocentral distance enabled attenuation of the seismic waves so speleothem damage due to stalagmite resonance frequency was dampened. The documented dripstone column damage was rather caused by its sudden shortening due to passing elastic S-waves with estimated 3.5 (+8.2/−1.5) mm PGD amplitudes. At least three distinct seismotectonic events in the Late Pleistocene and Early to Middle Holocene were constrained by radiometric dating. The 40.6 cm sinistral fault slip occurred between 41.8 ± 1.3 ka and 18.7 ± 0.4 ka ago, the 2.6 cm dextral oblique reverse fault slip happened between 10.73 ± 0.23 and 8.61 ± 0.15 ka ago, and another speleothem damage event took place between 6.28 ± 0.24 ka and 5.7 ± 1.2 ka ago. These events were most probably accompanied by distinct destructive to very destructive paleoearthquakes with local intensities ranging from VIII to X on the ESI 2007 scale, significant rock weakening, and forming the large deep-seated gravitational slope deformation on the southeastern mountain slopes adjacent to Obir Caves.

Návaznosti

GC22-24206J, projekt VaV

Název: Koseismické sesuvy v pohořích aktivních a stabilizovaných akrečních klínů

Investor: Grantová agentura ČR, Koseismické sesuvy v pohořích aktivních a stabilizovaných akrečních klínů, Taiwan/MOST

Citovat

BAROŇ, Ivo, Lukas PLAN, Bernhard GRASEMANN, Rostislav MELICHAR, Ivanka MITROVIĆ-WOODELL, Matt ROWBERRY a Denis SCHOLZ. Three large prehistoric earthquakes in the Eastern Alps evidenced by cave rupture and speleothem damage. Geomorphology. Elsevier B.V., 2022, roč. 408, July, s. 1-17. ISSN 0169-555X. Dostupné z: https://dx.doi.org/10.1016/j.geomorph.2022.108242.

@article{2244082,
   author = {Baroň, Ivo and Plan, Lukas and Grasemann, Bernhard and Melichar, Rostislav and MitrovićandWoodell, Ivanka and Rowberry, Matt and Scholz, Denis},
   article_number = {July},
   doi = {http://dx.doi.org/10.1016/j.geomorph.2022.108242},
   keywords = {Cave rupture; Active tectonics; Speleothem; Paleoseismology; Deep-seated gravitational slope deformation; Obir Caves; Eastern Alps},
   language = {eng},
   issn = {0169-555X},
   journal = {Geomorphology},
   title = {Three large prehistoric earthquakes in the Eastern Alps evidenced by cave rupture and speleothem damage},
   url = {https://doi.org/10.1016/j.geomorph.2022.108242},
   volume = {408},
   year = {2022}
}

TY  - JOUR
ID  - 2244082
AU  - Baroň, Ivo - Plan, Lukas - Grasemann, Bernhard - Melichar, Rostislav - Mitrović-Woodell, Ivanka - Rowberry, Matt - Scholz, Denis
PY  - 2022
TI  - Three large prehistoric earthquakes in the Eastern Alps evidenced by cave rupture and speleothem damage
JF  - Geomorphology
VL  - 408
IS  - July
SP  - 1-17
EP  - 1-17
PB  - Elsevier B.V.
SN  - 0169555X
KW  - Cave rupture
KW  - Active tectonics
KW  - Speleothem
KW  - Paleoseismology
KW  - Deep-seated gravitational slope deformation
KW  - Obir Caves
KW  - Eastern Alps
UR  - https://doi.org/10.1016/j.geomorph.2022.108242
N2  - Spectacular geomorphic evidence of recent tectonic activity and three potentially strong prehistoric earthquakes were discovered in Obir Caves in the Karawanken Mountains. This paper presents active fault structures, geomorphic features, and the age constraints attributed to particular seismotectonic events. The 1976 Mw 6.7 Friuli earthquake about 100 km from Obir Caves caused only local speleothem damage. The 100 km hypocentral distance enabled attenuation of the seismic waves so speleothem damage due to stalagmite resonance frequency was dampened. The documented dripstone column damage was rather caused by its sudden shortening due to passing elastic S-waves with estimated 3.5 (+8.2/−1.5) mm PGD amplitudes. At least three distinct seismotectonic events in the Late Pleistocene and Early to Middle Holocene were constrained by radiometric dating. The 40.6 cm sinistral fault slip occurred between 41.8 ± 1.3 ka and 18.7 ± 0.4 ka ago, the 2.6 cm dextral oblique reverse fault slip happened between 10.73 ± 0.23 and 8.61 ± 0.15 ka ago, and another speleothem damage event took place between 6.28 ± 0.24 ka and 5.7 ± 1.2 ka ago. These events were most probably accompanied by distinct destructive to very destructive paleoearthquakes with local intensities ranging from VIII to X on the ESI 2007 scale, significant rock weakening, and forming the large deep-seated gravitational slope deformation on the southeastern mountain slopes adjacent to Obir Caves.
ER  -

BAROŇ, Ivo, Lukas PLAN, Bernhard GRASEMANN, Rostislav MELICHAR, Ivanka MITROVI$\backslash$'C-WOODELL, Matt ROWBERRY a Denis SCHOLZ. Three large prehistoric earthquakes in the Eastern Alps evidenced by cave rupture and speleothem damage. \textit{Geomorphology}. Elsevier B.V., 2022, roč.~408, July, s.~1-17. ISSN~0169-555X. Dostupné z: https://dx.doi.org/10.1016/j.geomorph.2022.108242.

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