A5083546468- Seismology and Earthquake Studies
- earthquake and tectonic studies
- Seismic Waves and Analysis
- Geological and Geochemical Analysis
- Earthquake Detection and Analysis
- Seismic Imaging and Inversion Techniques
- High-pressure geophysics and materials
- Anomaly Detection Techniques and Applications
- Geological and Geophysical Studies Worldwide
- Geology and Paleoclimatology Research
- Data-Driven Disease Surveillance
- Geophysics and Sensor Technology
- Geological Modeling and Analysis
- Geological formations and processes
- Geological and Tectonic Studies in Latin America
- Public Relations and Crisis Communication
- Advanced Frequency and Time Standards
- Geological Formations and Processes Exploration
- Seismic Performance and Analysis
- Geotourism and Geoheritage Conservation
- Software Testing and Debugging Techniques
- Advancements in PLL and VCO Technologies
- Particle Detector Development and Performance
- Software System Performance and Reliability
- Wireless Body Area Networks
ETH Zurich
2016-2024
Board of the Swiss Federal Institutes of Technology
2016-2021
Memorial University of Newfoundland
2016
Institut de physique du globe de Paris
2011-2016
Centre Hospitalier Universitaire de Martinique
2015
Utah Geological Survey
2013-2014
Géosciences Montpellier
2013-2014
Institut Pasteur de la Guadeloupe
2013
Bureau de Recherches Géologiques et Minières
2013
Sorbonne Paris Cité
2011
Seismic background noise dramatically decreased as a result of lockdown measures in place for mitigating the spread COVID-19.
Abstract Over the past several decades, Yellowstone caldera has experienced frequent earthquake swarms and repeated cycles of uplift subsidence, reflecting dynamic volcanic tectonic processes. Here we examine detailed spatial‐temporal evolution 2010 Madison Plateau swarm, which occurred near northwest boundary caldera. To fully explore integrated procedures for seismic waveform‐based detection with precise double‐difference relative relocation. Using cross correlation continuous data...
  SeisComP (Seismological Communication Processor) is an open-source, free seismic monitoring software that features automated data processing workflow, flexible database integration, and interface capabilities. This study integrates with the scanloc module, ETHZ-SED Earthquake Early Warning (EEW) system algorithms, SeisBench to develop three distinct systems, optimizing key tasks for Central Weather Administration (CWA): earthquake early warning, activity analysis, global...
[1] The incremental caldera collapses of Fernandina (1968), Miyakejima (2000), and Piton de la Fournaise (2007) are analyzed in order to understand the collapse dynamics basaltic setting associated edifice deformation. For each caldera, is assessed through evolution (1) time interval T between two successive increments, (2) amount vertical displacement during increment, (3) magma outflow rate whole process. We show from that were characterized by a similar dynamics, despite large differences...
We investigate the relationship between subduction processes and related seismicity for Lesser Antilles Arc using Gutenberg–Richter law. This power law describes earthquake-magnitude distribution, with gradient of cumulative magnitude distribution being commonly known as b-value. The was chosen because its along-strike variability in sediment transition from to strike-slip movement towards northern southern ends. data are derived catalogues Seismic Research Centre University West Indies...
We present our efforts to integrate Distributed Acoustic Sensing (DAS) data into the real-time seismic monitoring workflows of Swiss Seismological Service (SED) and Bedretto Underground Laboratory for Geosciences Geoenergies (BedrettoLab). Spanning from regional national fluid injection experiments at BedrettoLab, we show how DAS can be used effectively across many orders magnitude in temporal, spatial amplitude resolution. Using temporary deployments Switzerland, have incorporated SeisComP,...
Machine learning (ML) has seen widespread use in seismology recently, with a significant focus on earthquake monitoring. ML models are now available for phase picking, first motion polarity determination, etc. Implementing them standard monitoring software (e.g. SeisComP) could significantly improve the automatic and save time human analysts, whilst leveraging all existing benefits of mature frameworks. An important step moving from research into production been Python package SeisBench...
Over the past decades, seismological data centers within International Federation of Digital Seismograph Networks (FDSN; www.fdsn.org) have worked together to establish and implement standards for waveform (miniSEED), metadata (StationXML), web service APIs discovery, distribution quality control. These been broadly adopted, today enable community seamlessly access from FDSN across world. Meanwhile, driven by applications related environmental monitoring Machine Learning, users increasingly...
Abstract This report summarizes the seismicity in Switzerland and surrounding regions years 2017 2018. In 2018, Swiss Seismological Service detected located 1227 955 earthquakes region under consideration, respectively. The strongest event analysed period was M L 4.6 Urnerboden earthquake, which occurred border of cantons Uri, Glarus Schwyz on March 6, 2017. earthquake within since 5.0 Vaz 1991. Associated ground motions indicating intensity IV were reported a radius up to about 50 km...
Early detection of the onset a caldera collapse can provide crucial information to understand their formation and thus minimize risks for nearby population visitors. Here, we analyse 2007 Piton de la Fournaise on La Réunion Island recorded by broadband seismic station. We show that this instrument ultra-long period (ULP) signals with frequencies in range (0.003-0.01 Hz) accompanied very-long (VLP) (between 0.02 0.50 prior during suggesting it is possible detect beginning at depth anticipate...
The Swiss Seismological Service (SED) at ETH has been developing methods and open-source software for Earthquake Early Warning (EEW) more than a decade using SeisComP earthquake monitoring since 2012. SED built comprehensive set of modules that can provide EEW solutions in quick transparent manner by any seismic service operating SeisComP. To date, implementations the Virtual Seismologist (VS) Finite-Fault Rupture Detector (FinDer) algorithms are available. VS provides rapid magnitudes...
Abstract. Scientists from different disciplines at ETH Zurich are developing a dynamic, harmonised, and user-centred earthquake risk framework for Switzerland, relying on continuously evolving catalogue generated by the Swiss Seismological Service (SED) using national seismic networks. This uses all available information to assess various stages facilitates widespread dissemination communication of resulting information. Earthquake products services include operational (loss) forecasting...
Summary We take advantage of the new large AlpArray Seismic Network (AASN) as part research initiative (www.alparray.ethz.ch), to establish a consistent seismicity-catalogue for greater Alpine region (GAR) time period 2016 January 1–2019 December 31. use data from 1103 stations including AASN backbone composed 352 permanent and 276 (including 30 OBS) temporary broad-band (network code Z3). Although characterized by moderate seismic hazard, European Alps surrounding regions have higher risk...
Abstract The Piton de la Fournaise volcano exhibits frequent eruptions preceded by seismic swarms and is a good target to test hypotheses about magmatically induced variations in wave properties. We use permanent station network portable broadband compare anisotropy measured via shear splitting with geodetic displacements, ratios of compressional velocity (Vp/Vs), earthquake focal mechanisms, ambient noise correlation analysis surface velocities examine stress changes from 2000 through 2012....
Instrumental catalogues of earthquakes in the subduction zone Lesser Antilles are produced by local observatories and International Seismological Centre. But none these merge all arrival times first regional phases available; addition, they have a magnitude completeness relatively high for entire area. As part Data Centre project, we unified catalogue known from 1972 to 2012, with optimal constraints on hypocentre locations. We re-evaluated hypocentres method used probabilistic improving...
Abstract Rapid information on fault rupture geometry is critically important to assess damage and fatalities in large earthquakes strongly needed coordinate rapid rescue efforts if where necessary. Many countries around the world, however, cannot afford operate dense seismic networks required rapidly determine geometry. In this feasibility study, we investigate crowd-sourced felt intensity reports can be used close gap enable determination of orientation spatial extent ruptures. We apply...
The island of La Réunion is made up two main shield volcanoes: Piton des Neiges and de la Fournaise. A wide variety seismic events observed, including but not limited to: tectonic events, volcano-tectonic earthquakes, volcanic tremors, long-period very-long-period earthquakes. seismicity illuminates different levels its plumbing system. In the shallowest part Fournaise, earthquakes are clustered below volcano summit area often occur as intense swarms during magma intrusions. Seismic activity...
We analyze the performance of a prototype earthquake early warning system deployed at National Seismological Network Costa Rica in collaboration with Swiss Service by presenting real-time during six earthquakes (Mw 5.1-6.4) that took place 2018 and 2019. observe that, despite only limited efforts to optimize existing network 158 stations, for EEW purposes, density allows fast determination source parameters using both Virtual Seismologist Finite Fault Rupture Detector algorithms. Shallow on...