Rapid source parameter determination of the August 17, 1999, Izmit earthquake 
at GFZ Potsdam.

Bock, G.; 2.4 Seismology, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum

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Rapid source parameter determination of the August 17, 1999, Izmit earthquake at GFZ Potsdam.

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Bock, G.
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Bock, G. (2000): Rapid source parameter determination of the August 17, 1999, Izmit earthquake at GFZ Potsdam. - ORFEUS Newsletter, 2, 1.

https://gfzpublic.gfz-potsdam.de/pubman/item/item_227752

Abstract

In this note, I report about the source parameter determination of the Izmit earthquake as it was done at GFZ in the morning of August 17, 1999. The results were distributed via electronic mail to customers of the European-Mediterranean Seismological Centre (EMSC). Two messages were disseminated. The first one at 08:08 UTC was based only on date from 5 stations, for the second one posted at 10:17 UTC, about 10 hours after the event, date from 12 stations could be used. In the following I shall briefly describe the procedure, the problems that arose on this day and present seismogram examples that illustrate various parameters of the solution.