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The 2013 Earthquake Series in the Southern Vienna Basin: Location : Volume 36, Issue 36 (27/08/2014)

By Apoloner, M.-t.

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Book Id: WPLBN0003989415
Format Type: PDF Article :
File Size: Pages 4
Reproduction Date: 2015

Title: The 2013 Earthquake Series in the Southern Vienna Basin: Location : Volume 36, Issue 36 (27/08/2014)  
Author: Apoloner, M.-t.
Volume: Vol. 36, Issue 36
Language: English
Subject: Science, Advances, Geosciences
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Brückl, E., Mertl, S., Bianchi, I., Bokelmann, G., Meurers, R., Apoloner, M., & Hausmann, H. (2014). The 2013 Earthquake Series in the Southern Vienna Basin: Location : Volume 36, Issue 36 (27/08/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Department of Meteorology and Geophysics, University of Vienna, Vienna, Austria. Eastern Austria is a region of low to moderate seismicity, and hence the seismological network coverage is relatively sparse. Nevertheless accurate earthquake location is very important, as the area is one of the most densely populated and most developed areas in Austria.

In 2013 a series of earthquakes with magnitudes up to 4.2 was recorded in the Southern Vienna Basin. With portable broadband, semi-permanent, and permanent installed seismic sensors from different institutions it was possible to record the main- and aftershocks with an unusual multitude of close-by seismic stations.

In this study we combine records from all available stations up to 240 km distance in one dataset. First, we stabilize the location with three stations deployed in the epicentral area. The higher network density moves the location of smaller magnitude events closer to the main shocks, with respect to preliminary locations achieved by permanent and semi-permanent networks. Then we locate with NonLinLoc using consistent picks, a 3-D velocity model and apply station corrections. This second approach results in stable epicenters, for limited and even changing station availability.

This dataset can then be inspected more closely for the presence of regional phases, which then can be used for more accurate localizations and especially depth estimation. Further research will address directivity effects and the asymmetry in earthquake intensity observed throughout the area, using double differences and cross-correlations.


Summary
The 2013 Earthquake Series in the Southern Vienna Basin: location

Excerpt
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