Passive seismic monitoring at the ketzin CCS site -Magnitude estimation
| Autor: | Paap, B.F., Steeghs, T.P.H. |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Earthquake waveforms
Seismographs Frequency spectra Linear relation Energy / Geological Survey Netherlands Earth / Environmental Geological Survey Netherlands Seismic monitoring Earthquake data SGE - Sustainable Geo Energy Earthquakes ELSS - Earth Life and Social Sciences Spectral bandwidth Geosciences Local magnitude Magnitude estimation |
| Zdroj: | 76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy-Incorporating SPE EUROPEC 2014, 16 June 2014 through 19 June 2014, Amsterdam, 2146-2150 |
| Popis: | In order to allow quantification of the strength of local micro-seismic events recorded at the CCS pilot site in Ketzin in terms of local magnitude, earthquake data recorded by standardized seismometers were used. Earthquakes were selected that occurred in Poland and Czech Republic and that were detected both on the Ketzin array and on nearby situated regional seismometers operated by BGR. Analysis of the waveforms of both types of data suggests that they could be combined to broaden the useful spectral bandwidth for earthquake waveform analysis. By identifying and isolating the overlapping frequency spectrum of both data types (1-3 Hz), linear relations were obtained that were used to define local magnitude for a given peak amplitude value. Extrapolation of these relations to smaller local magnitudes can serve as an estimate for local magnitudes of local high frequency micro-seismic events that are detected at the Ketzin site. |
| Databáze: | OpenAIRE |
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