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Preliminary aftershock analysis of the Mw=7.4 Izmit and Mw=7.1 Düzce earthquake in Western Turkey

Milkereit, C., Zünbül, S., Karakisa, S., Iravul, Y., Zschau, J., Baumbach, M., Grosser, H., Günther, E., Umutlu, N., Kuru, T., Erkul, E., Klinge, K., Ibs von Seht, M., Karahan, A. (2000): Preliminary aftershock analysis of the Mw=7.4 Izmit and Mw=7.1 Düzce earthquake in Western Turkey. - In: Kozaci, Ö., Barka, A. (Eds.), The 1999 Izmit and Düzce Earthquakes: preliminary results, Istanbul Technical University, pp. 179—187.



http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:226168
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Milkereit ,  Claus
2.1 Physics of Earthquakes and Volcanoes, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Zünbül ,  S.

Karakisa ,  S.

Iravul ,  Y.

http://gfzpublic.gfz-potsdam.de/cone/persons/resource/zschau

Zschau ,  Jochen
2.1 Physics of Earthquakes and Volcanoes, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Baumbach ,  M.

http://gfzpublic.gfz-potsdam.de/cone/persons/resource/gros

Grosser ,  Helmut
2.1 Physics of Earthquakes and Volcanoes, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

http://gfzpublic.gfz-potsdam.de/cone/persons/resource/guenth

Günther ,  Erwin
2.1 Physics of Earthquakes and Volcanoes, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Umutlu ,  N.

Kuru ,  T.

Erkul ,  E.

Klinge ,  K.

Ibs von Seht ,  M.

Karahan ,  A.

Abstract
Abstract: Aftershocks of the Izmit and Duezce earthquakes have been studied within the framework of joint Turkish-German projects. These aftershock studies include data evaluation and analyses of both, a permanent network that has been monitoring the seismic activity in an area located between the cities of Adapazari and Bolu and temporary networks installed by the German Task Force for Earthquakes after the Izmit and Duezce earthquakes. Final data analysis will be done for the combined network. Preliminary data indicate that aftershocks concentrate close to the epicentre of the Izmit main shock. The aftershocks east of the epicentre depict two clusters that appear to be unconnected. These clusters are located east of Adapazari and west of Duezce. The Duezce earthquake nucleated at the eastern-most part of the aftershocks of the Izmit earthquake and ruptured a neighbouring fault segment. No seismic activity has been detected in the Mudurnu Valley along the southern branch of the North-Anatolian Fault where the 1957 Abant earthquake (M=7.1) and the 1967 Mudurnu earthquake (M=7.2) occurred.