Scisola: Automatic Moment Tensor Solution for SeisComP3

Triantafyllis, Nikolaos; Sokos, Efthimios; Ilias, Aristidis; Zahradnı́k, Jiřı́

doi:10.1785/0220150065

Cited by 11 publications

(8 citation statements)

References 40 publications

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“…(1) CMT, as described in previous Sections. A CMT provides information on the earthquake's rupture directivity [26]. The frequent lack of a fast official CMT information, provided by seismological agencies is thus an important issue.…”

Section: Simulation Input Parametersmentioning

confidence: 99%

Urgent Supercomputing of Earthquakes

Puente

Rodriguez

Monterrubio-Velasco

et al. 2020

Proceedings of the Platform for Advanced Scientific Computing Conference

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Deadly earthquakes are events that are unpredictable, relatively rare and have a huge impact upon the lives of those who suffer their consequences. Furthermore, each earthquake has specific characteristics (location, magnitude, directivity) which, combined to local amplification and de-amplification effects, makes their outcome very singular. Empirical relations are the main methodology used to make early assessment of an earthquake's impact. Nevertheless, the lack of sufficient data registers for large events makes such approaches very imprecise. Physics-based simulators, on the other hand, are powerful tools that provide highly accurate shaking information. However, physical simulations require considerable computational resources, a detailed geological model, and accurate earthquake source information.A better early assessment of the impact of earthquakes implies both technical and scientific challenges. We propose a novel HPCbased urgent seismic simulation workflow, hereafter referred to as Urgent Computing Integrated Services for EarthQuakes (UCIS4EQ), which can deliver, potentially, much more accurate short-time reports of the consequences of moderate to large earthquakes. UCIS4EQ is composed of four subsystems that are deployed as services and connected by means of a workflow manager. This paper describes those components and their functionality. The main objective of UCIS4EQ is to produce ground-shaking maps and other potentially useful information to civil protection agencies. The first demonstrator will be deployed in the framework of the Center of Excellence for Exascale in Solid Earth (ChEESE, https://cheese.coe.eu/, last access: 12 Feb. 2020).

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Section: Simulation Input Parametersmentioning

confidence: 99%

Urgent Supercomputing of Earthquakes

Puente

Rodriguez

Monterrubio-Velasco

et al. 2020

Proceedings of the Platform for Advanced Scientific Computing Conference

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“…This quality factor determination scheme is followed by the GI-NOA for manual MT solutions. Illustration example of parameters' utilization is presented at Triantafyllis et al (2015). We have to note that a robust scisola configuration set-up would significantly improve the automatic MT calculations.…”

Section: Moment Tensor Solution's Quality Evaluationmentioning

confidence: 99%

“…MT retrieval software packages for regional distances include FMNEAREG (Delouis et al, 2008) and (Maercklin et al, 2011), KIWI (Cesca et al, 2010;Yagi and Nishimura, 2011) and ISOLA Zahradník, 2008, 2013). The last one has been used for research applications, for example, (Agurto et al, 2012;Quintero et al, 2014) (Triantafyllis et al, 2013) combined with the rapid evolution of the widely known seismological software, SeisComP3 (http://www.seiscomp3.org) (Weber et al, 2007), paved the way for the scisola (Triantafyllis et al, 2015) software implementation; a free and open-source code for automatic and real-time MT monitoring based on the ISOLA code and tightly connected to SeisComP3. The source code and the user manual of scisola can be found at GitHub hyperlink (https://github.com/nikosT/scisola).…”

Section: Introductionmentioning

confidence: 99%

Scisola: Real-Time Moment Tensor Monitoring for Seiscomp3

2017

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“…The moment tensor solution of full-waveform inversion can be effectively computed using ISOLA software, which has been broadly used in other seismotectonic studies (Agurto et al 2012;Choi et al 2012;Benetatos et al 2013;Cambaz and Mutlu 2016;González et al 2017;Supendi et al 2018). This software has been developed to automatically calculate centroid moment tensor solutions (Triantafyllis et al 2016;Vackáař et al 2017). Thus, we employ the ISOLA software to retrieve the centroid moment tensor solutions.…”

Section: Introductionmentioning

confidence: 99%

Local seismotectonic analysis of the July 2019 Molucca Sea earthquake sequence based on moment tensor solutions

et al. 2021

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We investigate the local seismotectonic of the Molucca Sea area using moment tensor calculations for the earthquakes that occurred in July 2019 at a depth of 10–55 km. The mainshock of Mw 6.8 occurred on July 7, followed by aftershocks until July 18, with magnitudes ranging from Mw 4.6 to Mw 5.8. Moment tensor solutions are calculated by applying Isolated Asperities (ISOLA) software using the full waveform data recorded at regional seismic stations. The analyzed frequency bands used in this study are 0.01–0.03 Hz and 0.04–0.05 Hz for the event with Mw ≥ 5 and Mw < 5, respectively. We provide validations of new moment tensor solutions for Mw < 5 events in the Molucca Sea region for the period during the earthquake sequence. The results show that thrust and oblique faults are dominant during this event, which indicate a compressional stress of divergent double subduction (DDS) of the Sangihe and Halmahera arcs. Only one full moment tensor solution reveals the normal fault mechanism, which may indicate the manifestation of strain release of compressional stress in the surrounding area. Furthermore, these results also support the previous studies suggesting that the Talaud-Mayu Ridge located in the middle of the Molucca Sea has developed as a consequence of the transpressional tectonic activity.

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Scisola: Automatic Moment Tensor Solution for SeisComP3

Cited by 11 publications

References 40 publications

Urgent Supercomputing of Earthquakes

Urgent Supercomputing of Earthquakes

Scisola: Real-Time Moment Tensor Monitoring for Seiscomp3

Local seismotectonic analysis of the July 2019 Molucca Sea earthquake sequence based on moment tensor solutions

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