Recent vertical movements across the Atalandi fault-zone (Central Greece) |
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| Authors: | Stathis C Stiros Theodora Rondogianni |
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| Institution: | (1) Institute of Geology and Mineral Exploration (IGME), 70. Messoghion St., 115-27 Athens, Greece |
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| Abstract: | Repeated leveling data collected over a 14-km long traverse, crossing the Atalandi fault that last broke in 1894, revealed small amplitude motions for the interval 1969–1984. These motions are significant against random errors and are probably free of systematic errors. In addition, no local or superficial ground effect may account for the observed elevation changes which correlate with the tectonic pattern in the area, as they show a relative downward motion of the hanging wall of a normal fault. This motion is similar to the co-seismic slip. Geomorphological observations and observations of submerged archaeological sites on the other hand corroborate long-term motions which are unlikely to be explained as cumulative co-seismic slip and are possibly similar to the short-term motions leveling data reveal. |
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| Keywords: | Atalandi fault normal faulting leveling post-seismic slip aseismic slip geomorphology |
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