%0 Journal Article
%T Geological and seismological evidence for NW-SE crustal extension at the southern margin of Heraklion basin, Crete.
%A Alexandra Moshou
%A Athanassios Ganas
%A Charalambos Fassoulas
%A Christina Tsimi
%A George Bozionelos
%A George Papathanassiou
%A Sotirios Valkaniotis
%J -
%D 2017
%R http://dx.doi.org/10.12681/bgsg.15004 http://dx.doi.org/10.12681/bgsg.15004
%X In this paper we present new geological and seismological data on the orientation of crustal extension in central Crete (SE Heraklion basin) following the occurrence of two shallow seismic sequences: a) the May 2005 Assimi M=4.1 earthquake sequence and b) the 2013 Houdetsi-Tefeli sequence (3.2¡ÜMw¡Ü3.6). Emphasis is given to the results of the geological field work, stress analysis, source inversion, aftershock relocations and mapping of earthquake-induced environmental effects. For the first time we find seismological evidence for N-S strike-slip motions along shallow fault planes in central Crete (Amourgeles fault). Our results indicate that while crustal extension dominates there is a combination of active fault kinematics, ranging from normal faulting along the northern edge of Messara basin (south-dipping Plakiotissa fault) to strike-slip faulting inside the SE part Heraklion basin (Houdetsi-Tefeli). The combination of active fault motions accommodates a NW-SE extension of the upper crust
%K Crete
%K Assimi earthquake
%K extension
%K seismicity
%K active fault
%U https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/15004