Student: Vasiliki Efthymiadou
Supervisors: Prof. George Mylonakis
On June 8, 2008 at 15:25:30 local time (13:25:30 GMT) an earthquake of moment magnitude Mw=6.5 occurred in proximity to the city of Patras (population ~300,000) located in the northwestern part of Peloponnese. The earthquake was made itself felt as far away as 350 km from the epicentral area. The damage caused by the main shock was spread over a broad area of the prefectures of Achaia and Ilia (~2000 km2). Multiple organizations provided moment tensor solutions, indicating a dextral strike-slip on a nearly vertical fault and moment magni-tude ranging from 6.3 to 6.5. Strong-motion data are presented for the main event, which were obtained by 21 stations operated by ITSAK and the Department of Civil Engineering Univer-sity of Patras.
Thorough site investigation, did not reveal any traces of fault surface rupture, which is consis-tent with the deep focal depth in combination with the magnitude of the given earthquake. Structural damage extended to both Achaia and Ilia. Ground failures such as landslides, rock-falls, liquefaction and coastal subsidence occurred over the northwestern part of Peloponnese as a result of the strong earthquake. Liquefaction phenomena were also observed. Alternative methods for liquefaction triggering analysis were employed to test the validity of the findings.
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