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Javier Alejandro Ojeda Vargas

Postdoctoral Researcher

Universidad de Concepción

Concepción, Chile

I aim to understand earthquake processes through an integrated seismogeodetic approach, with broad interests in characterizing (a)seismic behavior, modeling earthquake strong ground motions, assessing earthquake potential and environmental seismology

Geophysics, UNIVERSIDAD DE CHILE. Chile, 2016
MSc Geophysics, UNIVERSIDAD DE CHILE. Chile, 2018
PhD Geology, UNIVERSIDAD DE CHILE. Chile, 2024
PhD Earth and Environmental Sciences, UNIVERSITÉ PARIS CITÉ. Francia, 2024

Teaching assistant Part Time

UNIVERSIDAD DE CHILE

Facultad de Ciencias Físicas y Matemáticas

Santiago, Chile

2015 - 2024
Lecturer Part Time

UNIVERSIDAD DE CHILE

Facultad de Ciencias Físicas y Matemáticas

Santiago, Chile

2023 - 2024
Visiting Professor Part Time

UNIVERSIDAD DE CONCEPCION

Facultad de Ingeniería

Concepción, Chile

2025 - At present

Research Assistant Part Time

Programa de Riesgo Sísmico

Santiago, Chile

2017 - 2020
Visiting Researcher Full Time

Istituto Nazionale di Geofisica e Vulcanologia

Rome, Italia

2019 - 2020
Doctoral Researcher Full Time

Departamento de Geofísica

Santiago, Chile

2020 - 2024
Visiting Student Researcher Full Time

University of California, Berkeley

Berkeley, Estados Unidos

2023 - 2024
Researcher Part Time

Programa de Riesgo Sísmico

Santiago, Chile

2024 - 2024
Postdoctoral Researcher, EASER project Full Time

Universidad de Concepción

Concepción, Chile

2025 - At present
Doctoral Researcher Full Time

Institut de Physique du Globe de Paris

Paris, Francia

2021 - 2024
Independent Consultant Part Time

Mining and Engineering Companies

Chile

2025 - At present

Graduate Students
Committee
[202?] Joaquín Jara, Master in Engineering Sciences UdeC
[202?] Diego Santa María, Master in Engineering Sciences UdeC
[2025] Maximiliano Osses-Valenzuela, Master in Engineering Sciences UdeC

Undergraduate Students
Advisor
[202?] Émilie Sanoner, Physics U Rennes (France)
[2024] Kim Araya, Civil Engineering UChile
Committee
[202?] Fabián Villalobos, Civil Engineering UdeC
[2026] Florencia Valenzuela, Geophysics UdeC
[2025] Andrés Barrientos, Civil Engineering UChile

Scientific Advisor in school projects (Explora ANID):
[2023] Nuclear reactor safety in case of earthquakes, developed at the Ascensión Nicol School, Estación Central
[2022] Diminishing water resources with zeolite, developed in the Cristobal Colón School, Melipilla
[2018] Seismology Science Academy, developed in the Nocedal School, La Pintana

Participation in national and international conferences
- Colloquium on Geophysical Signatures of Earthquakes and Volcanoes (2016, 2021, 2024, 2025, 2026)
- American Geophysical Union Fall Meeting (2017, 2018, 2019, 2020, 2022, 2023)
- European Geosciences Union General Assembly (2021, 2026)
- Latin American and Caribbean Seismological Commission Assembly (2022, 2026)
- Congreso Geológico Chileno (2015, 2018, 2023)
- Seismological Society of America Annual Meeting (2026)
Among others. More information on: https://javierojedav.github.io/conferences.html

Conference coordinator, Universidad de Chile
[2025] IV Seismic Hazard Congress, GIASIS, Talca
[2023] V Postgraduate workshop in Geophysics UChile
[2022] XXX Congrès Des Doctorants, École Doctorale 560, Paris, France
[2020] III Postgraduate workshop in Geophysics UChile
[2018] I Postgraduate workshop in Geophysics UChile
[2016] II Colloquium of Geophysical Signatures of Earthquakes and Volcanoes

Outreach
[2022 - today] Fundación Geonautas. Co-founder & President of a non-profit organization
[2021 - 2024] Rocadictos. Panelist in an Earth Science radio show hosted by Radio Universidad de Chile
[2021 - 2023] Tatemblando. Co-creator of a Seismology podcast hosted by Spotify
[2020 - 2022] EGU Early Career Scientist, Seismology Divison. Co-representative, writer, and reviewer in the EGU Seismology blog
[2016 - 2023] Scientific collaborator through 1000C1000A, Ciencia Abierta, Science Festivals. and others from Explora ANID.
[2016 - 2018] Exposismos. Exhibition coordinator, PAR Explora RMSO CONICYT
[2014] Scientific Staff member in CONICYT festival, Fondecyt project 11130230: Mega-earthquakes scenarios in Chile and Synthetic Strong Motion Simulation

More information on:
https://javierojedav.github.io/outreach.html

Travel Grant

American Geophysical Union

Estados Unidos, 2020

Supported by the American Geophysical Union. This program provides funds to present outstanding graduate projects at the AGU Fall Meeting 2021.
Short-term study Grant

Japan Student Services Organization and Science and Engineering Exchange Program with Latin America

Japón, 2018

Three weeks stay in Japan supported by JASSO and SEELA to attend the International Joint Workshop on Slow Earthquakes (Fukuoka) and the Japan-LatinAmerica Academic Conference (Nikko)
Internship Grant - IPGP - France

UNIVERSIDAD DE CHILE

Chile, 2017

Supported by the program ”Short research stays for MSc. and PhD. students - Call 2017-2018”. Project: Implementation of transfer functions in stochastic finite fault methodology. Simulation of strong motion records of Tohoku Mw 9.0 (2011) and Maule Mw 8.8 (2010). Supervisor: Ph.D. Fabián Bonilla.
Outstanding Undergraduate Student Award

UNIVERSIDAD DE CHILE

Chile, 2014

Period 2014 and 2015 Acknowledgement to students who have excellent academic performance
International Mobility Grant

INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

Francia, 2023

Travel support for a short research stay.
Early Career Exchange Grant

UNIVERSITY OF CALIFORNIA-SANTA CRUZ

Estados Unidos, 2024

Provided by SZNet - the international component of SZ4D - is a coordination network for an international community studying subduction zone geohazards. Grant: 1-month exchange at UC Berkeley (October 2024) SZNet SZ4D NSF AccelNet program 2301732
Early Career Researcher Mobility Grant

NATIONAL SCIENCE FOUNDATION

Estados Unidos, 2026

SZ4D Science Community Meeting; NSF USA; SZNet 2301732, and Catalyst 2221947, Estados Unidos. Financiamiento para asistencia a workshop en Estados Unidos (Long Beach, CA)
SSA Community Grant

Seismological Society of America

Chile, 2026

Training on Distributed Acoustic Sensing (DAS) for earthquake research and seismic building response (Catalina Morales-Yáñez, Javier Ojeda, Ethan Williams, Gonzalo Montalva), receiving $5,000, plans to build scientific and technical capacity in Chile to use distributed acoustic sensing (DAS) for earthquake analysis and seismic hazard assessment. The meeting offers hands-on training, encourages interdisciplinary collaboration, and democratizes knowledge, making it accessible to everyone, especially students and early-career scientists.


In search for the lost truth about the 1922 & 1918 Atacama earthquakes in Chile Article ISI SCOPUS Journal of South American Earth Sciences (2024)
Seismic Image of the Central to Southern Andean Subduction Zone Through Finite-Frequency Tomography Obayashi, M.; Shiobara, H; Ito A.; Shinohara, M.; Iwamori H. Article ISI SCOPUS Journal of Geophysical Research: Solid Earth (2024)
Afterslip of the Mw 8.3 2015 Illapel Earthquake Imaged Through a Time-Dependent Inversion of Continuous and Survey GNSS Data Nocquet, J. -M. Article ISI SCOPUS Journal of Geophysical Research: Solid Earth (2023)
Long-term array observation by ocean bottom seismometers at the Chile Triple Junction Miller, Matthew Article ISI SCOPUS Journal of South American Earth Sciences (2023)
Seismic and aseismic slip during the 2006 Copiapo swarm in North-Central Chile Article ISI SCOPUS Journal of South American Earth Sciences (2023)
Stochastic strong-ground motion simulation in the Santiago metropolitan region considering an Mw 7.8 intraplate intermediate-depth earthquake Article ISI SCOPUS Journal of South American Earth Sciences (2023)
Hybrid broadband strong-motion simulation to investigate the near-source characteristics of the M6.5, 30 October 2016 Norcia, Italy earthquake Akinci, Aybige; Tinti, Elisa Article ISI SCOPUS Soil Dynamics and Earthquake Engineering (2021)
Seismic noise variability as an indicator of urban mobility during the COVID-19 pandemic in the Santiago metropolitan region, Chile Article ISI SCOPUS Solid Earth (2021)
Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures Lecocq, Thomas; Van Noten, Koen; van Wijk, Kasper; Koelemeijer, Paula; De Plaen, Raphael S. M.; Massin, Frederick; Hillers, Gregor; Anthony, Robert E.; Apoloner, Maria-Theresia; Arroyo-Solorzano, Mario; et al. Article ISI SCOPUS Science (2020)
The 21 May 1960 M-w 8.1 Concepcion Earthquake: A Deep Megathrust Foreshock That Started the 1960 Central-South Chilean Seismic Sequence Article ISI SCOPUS Seismological Research Letters (2020)
Stochastic Strong-Motion Simulation in Borehole and on Surface for the 2011 M-w 9.0 Tohoku-Oki Megathrust Earthquake Considering P, SV, and SH Amplification Transfer Functions Pasten, C; Otarola C. Article ISI BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA (2018)