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Encyclopedia of earthquake engineering

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    SYSNO ASEP0450044
    Druh ASEPM - Kapitola v monografii
    Zařazení RIVC - Kapitola v knize
    NázevEarthquake swarms
    Tvůrce(i) Horálek, Josef (GFU-E) ORCID, RID
    Fischer, T. (CZ)
    Einarsson, P. (IS)
    Jakobsdóttir, S. S. (IS)
    Zdroj.dok.Encyclopedia of earthquake engineering. - Berlin : Springer, 2015 / Beer M. ; Kougioumtzoglou I. A. ; Patelli E. ; Au I. S.-K. - ISBN 978-3-642-35343-7
    Rozsah strans. 871-885
    Poč.str.15 s.
    Poč.str.knihy3966
    Forma vydáníTištěná - P
    Jazyk dok.eng - angličtina
    Země vyd.DE - Německo
    Klíč. slovaclustering of events ; driving forces ; earthquake location
    Vědní obor RIVDC - Seismologie, vulkanologie a struktura Země
    CEPGAP210/12/2336 GA ČR - Grantová agentura ČR
    Institucionální podporaGFU-E - RVO:67985530
    AnotaceWe present a review of knowledge of earthquake swarms. They are sequences of numerous events closely clustered in space and time and do not have a single dominant mainshock. Earthquake swarms are observed worldwide, typically accompany volcanic activity but also occur in intracontinental areas. Many swarms exhibit the b-value of the frequency-magnitude distribution ≈ 1, which is also a typical b-value for mainshock-aftershock sequences. Depths of swarm earthquakes range approximately between 2 and 20 km with the majority of swarm events located around 10 km and shallower. Earthquake swarms exhibit usually pronounced migration of the foci, particularly the swarms that are closely connected with intrusion of dikes. The source mechanisms signify that the swarm earthquakes are mostly shear-slips along a fault just as ordinary tectonic earthquakes. Triggering mechanisms and driving are mainly related to activity of pressurised hydrothermal fluids, magma injection, or dyke intrusion, and also to aseismic loading by creeping faults. Accordingly, numerous models trying to explain the seismic-energy release in the form of earthquake swarms have been proposed.
    PracovištěGeofyzikální ústav
    KontaktHana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
    Rok sběru2016
Počet záznamů: 1