ObsPy: a bridge for seismology into the scientific Python ecosystem

Krischer, Lion; Megies, Tobias; Barsch, Robert; Beyreuther, Moritz; Lecocq, Thomas; Caudron, Corentin; Wassermann, Joachim

doi:10.1088/1749-4699/8/1/014003

Cited by 693 publications

(445 citation statements)

References 21 publications

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“…S1, calculated using ObsPy [Krischer et al, 2015].). The such constrained model is presented in the following including a summary of all model parameters in Table 1.…”

Section: Modelmentioning

confidence: 99%

Landers 1992 "reloaded": Integrative dynamic earthquake rupture modeling

Gabriel

Wollherr

Schliwa

et al. 2018

Preprint

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Key Points:• A new integrative physics-based simulation of the 1992 Landers earthquake reproduces a broad range of independent observation • Sustained dynamic rupture interconnecting the complex fault segments constraints pre-stress and fault strength • We discuss the interplay of rupture transfers, geometric fault complexity, initial stress, viscoelastic attenuation, and off-fault plasticity AbstractThe 1992 M w 7.3 Landers earthquake is perhaps one of the best studied seismic events. However, many aspects of the dynamics of the rupture process are still puzzling, e.g. how did rupture transfer between fault segments? We present 3D spontaneous dynamic rupture simulations of a new degree of realism, incorporating the interplay of fault geometry, topography, 3D rheology, off-fault plasticity and viscoelastic attenuation. The surprisingly unique scenario reproduces a broad range of observations, including final slip distribution, seismic moment-rate function, seismic waveform characteristics and peak ground velocities, as well as shallow slip deficits and mapped off-fault deformation patterns. Sustained dynamic rupture of all fault segments in general, and rupture transfers in particular, put strong constraints on amplitude and orientation of initial fault stresses and friction. Source dynamics include dynamic triggering over large distances and direct branching; rupture terminates spontaneously on most of the principal fault segments. We achieve good agreement between synthetic and observed waveform characteristics and associated peak ground velocities. Despite very complex rupture evolution, ground motion variability is close to what is commonly assumed in Ground Motion Prediction Equations. We examine the effects of variations in modeling parameterization, e.g. purely elastic setups or models neglecting viscoelastic attenuation, in comparison to our preferred model. Our integrative dynamic modeling approach demonstrates the potential of consistent in-scale earthquake rupture simulations for augmenting earthquake source observations and improving the understanding of earthquake source physics of complex, segmented fault systems.

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“…S1, calculated using ObsPy [Krischer et al, 2015].). The such constrained model is presented in the following including a summary of all model parameters in Table 1.…”

Section: Modelmentioning

confidence: 99%

Landers 1992 "reloaded": Integrative dynamic earthquake rupture modeling

Gabriel

Wollherr

Schliwa

et al. 2018

Preprint

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“…Because ambient noise is usually higher in the horizontal components, the average noise level is recom- mended to be only 10 dB less than the NHNM. To follow the ambient noise level, we use the seismic probabilistic power spectral density procedure (PPSD) by McNamara and Buland (2004) and Custodio et al (2014), which is a part of the ObsPy module (Krischer et al, 2015). Figure 8 shows the PPSD medians for all MOBNET stations deployed in the AlpArray-EASI and AASN networks.…”

Section: Seismic Noisementioning

confidence: 99%

“…COST LD15029 of the Ministry of Education, Youth and Sports. Several figures and calculations have been prepared with the use of the Generic Mapping Tools (Wessel and Smith, 1998) and ObsPy (Krischer et al, 2015).…”

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confidence: 99%

Data quality control and tools in passive seismic experiments exemplified on the Czech broadband seismic pool MOBNET in the AlpArray collaborative project

Vecsey

Plomerová

Jedlička

et al. 2017

Geosci. Instrum. Method. Data Syst.

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Abstract. This paper focuses on major issues related to the data reliability and network performance of 20 broadband (BB) stations of the Czech (CZ) MOBNET (MOBile NETwork) seismic pool within the AlpArray seismic experiments. Currently used high-resolution seismological applications require high-quality data recorded for a sufficiently long time interval at seismological observatories and during the entire time of operation of the temporary stations. In this paper we present new hardware and software tools we have been developing during the last two decades while analysing data from several international passive experiments. The new tools help to assure the high-quality standard of broadband seismic data and eliminate potential errors before supplying data to seismological centres. Special attention is paid to crucial issues like the detection of sensor misorientation, timing problems, interchange of record components and/or their polarity reversal, sensor mass centring, or anomalous channel amplitudes due to, for example, imperfect gain. Thorough data quality control should represent an integral constituent of seismic data recording, preprocessing, and archiving, especially for data from temporary stations in passive seismic experiments. Large international seismic experiments require enormous efforts from scientists from different countries and institutions to gather hundreds of stations to be deployed in the field during a limited time period. In this paper, we demonstrate the beneficial effects of the procedures we have developed for acquiring a reliable large set of high-quality data from each group participating in field experiments. The presented tools can be applied manually or automatically on data from any seismic network.

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“…The computations were performed using the Obspy library (Beyreuther et al 2010;Krischer et al 2015).…”

Section: Noise Characteristics Of the Hungarian National Seismologicamentioning

confidence: 99%

AlpArray in Hungary: temporary and permanent seismological networks in the transition zone between the Eastern Alps and the Pannonian basin

et al. 2018

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In the last few decades dense large-scale seismic networks showed their importance in studying the structure of the lithosphere and the upper mantle. The better understanding of the Apennines-Alps-Carpathian-Dinarides system is the main target of the AlpArray European international initiative in which more than 50 institutes are involved. The core of AlpArray is the AlpArray Seismic Network (AASN). With its $ 600 broadband seismic stations ( $ 280 of which are temporary) the AASN is, so far, the largest passive seismic experiment in Europe. The MTA CSFK Geodetic and Geophysical Institute, as a Core Member of the AlpArray project, contributes to the AlpArray Seismic Network with its entire permanent network as well as with 11 temporary broadband seismic stations deployed in Western Hungary. Three additional station equipment were provided by the Swiss-AlpArray SINERGIA program. The average station distance together with the permanent stations is around 40 km in the area of interest. The temporary network has been installed between December 2015 and July 2016 and the planned operation period is 3 years. In this paper we describe the characteristics of the 29 permanent and temporary stations, introducing not only the equipment, but the location, housing and geological setting, as well. We present median power spectral density curves in order to characterise the noise conditions at each station.

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ObsPy: a bridge for seismology into the scientific Python ecosystem

Cited by 693 publications

References 21 publications

Landers 1992 "reloaded": Integrative dynamic earthquake rupture modeling

Landers 1992 "reloaded": Integrative dynamic earthquake rupture modeling

Data quality control and tools in passive seismic experiments exemplified on the Czech broadband seismic pool MOBNET in the AlpArray collaborative project

AlpArray in Hungary: temporary and permanent seismological networks in the transition zone between the Eastern Alps and the Pannonian basin

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