Abstract
Abstract. Earthquakes registering magnitudes Md = 4.5 and 4.7 struck the city of Konya, Central Anatolia, on 10–11 September 2009, causing very slight damages. The earthquake epicenters were located at the east of Sille District along the Konya Fault Zone, a dip-slip fault. The nature and seismicity of the fault zone indicates that it is capable of producing earthquakes of moderate magnitudes. This paper summarizes the geologic data along the fault zone and documents groundwater conditions and analyzes borehole and geotechnical data of the Konya city. The residential area of the city covers an area of approximately 1150 square kilometers and consists almost entirely of flat land except for a small part of rugged land in the southwestern corner. Groundwater and geotechnical data were collected and analyzed to evaluate the liquefaction potential of deposits under the Konya city. This preliminary investigation indicates that areas for liquefaction are generally limited to the eastern and east central parts of the city.
Highlights
The study area is located in Central Anatolia (Fig. 1)
The neotectonic regime of Central Anatolia is known as the “Ova Regime” (Sengor, 1980) and “Central Anatolian neotectonic regime” (Kocyigit et al, 2000)
The magnitude Md = 4.5 and Md = 4.7 earthquakes occurred in Konya city on 10–11 September 2009 at a depth of 5.0 and 5.4 km, respectively
Summary
The study area is located in Central Anatolia (Fig. 1). The neotectonic regime of Central Anatolia is known as the “Ova Regime” (Sengor, 1980) and “Central Anatolian neotectonic regime” (Kocyigit et al, 2000). In the vicinity of Konya, late Miocene-early Pliocene extensional tectonic regime-generated faults are widespread. One of these faults is the normal slip Konya Fault Zone (Kocyigit, 1984; Ozcan et al, 1990; Aksoy and Eren, 2004). The magnitude Md = 4.5 and Md = 4.7 earthquakes occurred in Konya city on 10–11 September 2009 at a depth of 5.0 and 5.4 km, respectively. These earthquakes occurred on the Konya Fault Zone approximately 8 km northwest from downtown, a sparsely populated area in the Sille District.
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