Monitoring of tectonic movements of Gediz faults with GNSS observations

Observation and examination of crust deformations have a very important in exploring the potential of future earthquakes. Today, geodetic networking is a highly preferred method for monitoring superficial crustal deformations. Particularly, the use of GNSS in geodetic network measurements since the 1980s has made this method very useful. The measurement of networks established with GNSS can be done independently than time, cheaper, easier, and more reliable. The Gediz fault is a fault which has produced major earthquakes in history. The latest earthquake occurred on March 28, 1970, at around 23:00 local time in the Gediz region known as the west of central Kütahya. Western Anatolia shaken by this earthquake. After 1970 earthquake which known as the Great Gediz earthquake, any earthquakes have not occur on until today. The longest earthquake producing period of the fault is 48 years. In this thesis study, Gediz fault which has not produced an earthquake for 48 years has been investigated by GNNS observations. A GNSS network with 22 points around the district of Gediz fault has been stablished. The network is regularly and periodically measured in 2016, 2017, and 2018. The velocity vectors and strain fields of the region are calculated. As a result of the strain analysis, the extensions has been observed that are generally in the direction of K-G in the region. It can be stated that the results of this study and the geological studies in the region are in harmony.