J
Javier Ojeda
Researcher at University of Chile
Publications - 8
Citations - 221
Javier Ojeda is an academic researcher from University of Chile. The author has contributed to research in topics: Seismometer & Geology. The author has an hindex of 2, co-authored 5 publications receiving 119 citations.
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Journal ArticleDOI
Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures.
Thomas Lecocq,Stephen Hicks,Koen Van Noten,Kasper van Wijk,Paula Koelemeijer,Raphael S. M. De Plaen,Frédérick Massin,Gregor Hillers,Robert E. Anthony,Maria-Theresia Apoloner,Mario Arroyo-Solórzano,Jelle Assink,Pınar Büyükakpınar,Pınar Büyükakpınar,Andrea Cannata,Andrea Cannata,Flavio Cannavò,Sebastián Carrasco,Corentin Caudron,Esteban J. Chaves,Dave Cornwell,David Craig,Olivier F. C. den Ouden,Olivier F. C. den Ouden,Jordi Diaz,Stefanie Donner,Christos Evangelidis,Läslo Evers,Läslo Evers,Benoit Fauville,Gonzalo A. Fernandez,Dimitrios Giannopoulos,Steven J. Gibbons,Társilo Girona,Bogdan Grecu,Marc Grunberg,György Hetényi,Anna Horleston,Adolfo Inza,Jessica C. E. Irving,Jessica C. E. Irving,Mohammadreza Jamalreyhani,Mohammadreza Jamalreyhani,Alan L. Kafka,Mathijs Koymans,Mathijs Koymans,C. R. Labedz,Eric Larose,Nathaniel J. Lindsey,Mika McKinnon,Mika McKinnon,T. Megies,Meghan S. Miller,William G. Minarik,Louis Moresi,Victor H. Márquez-Ramírez,Martin Möllhoff,Ian M. Nesbitt,Shankho Niyogi,Javier Ojeda,Adrien Oth,Simon Richard Proud,Jay J. Pulli,Jay J. Pulli,Lise Retailleau,Annukka E. Rintamäki,Claudio Satriano,Martha K. Savage,Shahar Shani-Kadmiel,Reinoud Sleeman,Efthimios Sokos,Klaus Stammler,Alexander E. Stott,Shiba Subedi,Mathilde B. Sørensen,Taka'aki Taira,Mar Tapia,Fatih Turhan,Ben A. van der Pluijm,Mark Vanstone,Jérôme Vergne,Tommi Vuorinen,Tristram Warren,Joachim Wassermann,Han Xiao +84 more
TL;DR: The 2020 seismic noise quiet period is the longest and most prominent global anthropogenic seismic noise reduction on record and suggests that seismology provides an absolute, real-time estimate of human activities.
Journal ArticleDOI
Hybrid broadband strong-motion simulation to investigate the near-source characteristics of the M6.5, 30 October 2016 Norcia, Italy earthquake
TL;DR: In this paper, three-component broadband seismograms are generated to cover the entire frequency band of engineering interest, and ground motion parameters, including peak ground acceleration (PGA), peak ground velocity (PGV) and spectral amplitudes, are calculated at selected sites adopting physics-based parameters to understand better the earthquake fault rupture, the wave propagation, and their impacts on the seismic hazard assessment in the region.
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The 21 May 1960 Mw 8.1 Concepción Earthquake: A Deep Megathrust Foreshock That Started the 1960 Central‐South Chilean Seismic Sequence
TL;DR: Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT/FONDECYT) as discussed by the authors 1170430======Programa de Riesgo Sismico (Actividades de Interes NACional [AIN], Universidad de Chile)
Journal ArticleDOI
Seismic noise variability as an indicator of urban mobility during the COVID-19 pandemic in the Santiago metropolitan region, Chile
Javier Ojeda,Sergio Ruiz +1 more
TL;DR: In this paper, the authors analyzed temporal variations in high-frequency ASN recorded by broadband and strong-motion instruments deployed throughout the main cities of Chile, focusing on the capital, Santiago, a city with more than 7 million inhabitants and having high levels of urban mobility due to worker commutes inside the region.
Journal ArticleDOI
Stochastic Strong-Motion Simulation in Borehole and on Surface for the 2011 Mw 9.0 Tohoku-Oki Megathrust Earthquake Considering P, SV, and SH Amplification Transfer Functions
TL;DR: In this paper, the authors used the stochastic method to simulate horizontal and vertical strong-motion accelerograms in hard-rock boreholes, and incorporated P, SV, and SH soil amplification transfer functions to generate surface accelerograms.