The detection of weak earthquakes in the Western Bohemian swarm area through the deployment of seismic arrays

Title:

The detection of weak earthquakes in the Western Bohemian swarm area through the deployment of seismic arrays

Creator:

Štrunc, Jaroslav and Brož, Milan

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:41d69e80-bb4e-4d65-8e15-5fdf70c1b97e
uuid:41d69e80-bb4e-4d65-8e15-5fdf70c1b97e
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, zemětřesení, earthquake, cross-correlation, f-k analysis, weak earthquakes, seismic array, small-aperture, beamforming, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The NKCA and KVCA small-aperture (~ 90 m) seismic arrays in western Bohemia represent the second deployment of this type in the Czech Republic. The arrays have a regular triangular geometric configuration with high gain three-component seismographs in each corner of the triangle. This allows very weak local earthquakes to be detected with a high degree of precision and, thereby, substantially enhances the results of the pre-existing local seismic network (WEBNET). This paper reports on the pilot measurement period. It summarises the final configuration of the arrays and compares the derived results. The measured data have been analysed using the DP/EP system developed by NORSAR. This incorporates several array techniques such as beamforming, f-k analysis, and the cross-correlation method. It has been shown that during the study period, the levels of seismic activity recorded by the seismic arrays were up to fifteen times greater than the levels recorded by the pre-existing seismic network., Jaroslav Štrunc and Milan Brož., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2011 Volume:8 | Number:4 (164)

Harvested from:

CDK

Metadata only:

false