Record details

Title
    Seismic response to recent tectonic processes in the Banda Arc region
Author
    Matějková, Radka
    Špičák, Aleš
    Vaněk, Jiří
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Journal of Asian Earth Sciences
Vol./nr.
    Roč. 64, 5 March
Pages
    s. 1-13
Year
    2013
Notes
    Projekt: ME09011, GA MŠk3cav_un_auth*0252835
    Rozsah: 13 s. : P
Subject category
    Banda Arc
    calc-alkaline volcanism
    collision
    subduction
    Wadati-Benioff zone
Keyword
    Arc
    Banda
    Processes
    Recent
    Region
    Response
    Seismic
    Tectonic
Abstract (in english)
   Internal structure and recent tectonics of the geologically complex Banda Arc region (latitude 1-9 S, longitude 124-135 E) have been studied by means of the analysis of global seismological data. Relocated hypocentral determinations of the International Seismological Center (EHB data) and fault plane solutions of the Global Centroid Moment Tensor Project have been used together with previously published information on regional geology and dynamics. The analysis considered earthquakes in the lithospheric wedges above subducting slabs and earthquakes in the uppermost portions of the Wadati-Benioff zones (focal depth < 100 km); we avoided intermediate-depth and deep earthquakes that are clearly separated from shallow ones by distinct discontinuities in the Wadati-Benioff zones. Such a selection best reflects present manifestations of tectonic processes. We delimitated 11 domains of earthquakes, each of them spatially distinct and with similar earthquake focal mechanisms.
   The number of events that did not fit in any domain was negligible.
Contributor
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
    U
Import date
    23. 10. 2014