Deepa Mele VEEDU
Earthquake cycle modeling, Laboratory friction experiments, Observational seismology
I am interested in various rupture styles, particularly slow slip preceding fast ruptures. I have used the phenomenon of slow and fast ruptures on a single fault patch to explain the mechanism behind the period-doubling tremors near Parkfield, deep beneath the San Andreas Fault (Veedu & Barbot, Nature, 2016, https://doi.org/10.1038/nature17190).
I recently published a work to understand why the northern Cascadia and the Nankai regions produce irregular slow-slip events whereas Japan, Chile, and the Middle American Subduction zones generate both slow slip and ordinary (fast) earthquakes in a single location. We provide solutions on such behavior of slow slip and earthquakes using laboratory experiments and numerical simulations (Veedu et al., Geophys. Res. Lett., 2020, https://doi.org/10.1029/2020GL087985).
Currently, I am extending my work to a range of slip behaviors using finite-fault fully dynamic numerical simulations to construct an elaborate phase diagram by collaborating with Caltech.
I dwell on several fascinating topics:
• Can a simple model explain a variety of earthquake and slow-slip observations in nature?
• How can we better understand the phenomenon of slow-fast ruptures using finite-fault simulations and laboratory experiments?
• Does a fault system transition though chaotic sequences before entering into dynamic earthquake regime?
2020 | Ph. D. in Earth Sciences, Nanyang Technological University, Singapore
2013 | M. Tech. Exploration Geosciences, Indian Institute of Technology Kharagpur, India
2007 | M. Sc. Marine Geophysics, Cochin University of Science & Technology, India
2005 | B. Sc. Physics, Kannur University, India
Reviewer for Geophysical Research Letters (GRL)
2017 - Present | The Science of Slow Earthquakes
2016 - Present | Member of the Indian Geophysical Union (IGU)
2014 - Present | Member of the American Geophysical Union (AGU)
2015 - Present | Member of the Asia Oceania Geosciences Society (AOGS)
2016 - Present | Member of the European Geosciences Union (EGU)
2018 - Present | Association for Women Geoscientists (AWG)
2018 - Present | American Association for the Advancement of Science (AAAS)
2017 - 2020 | The Mars Society
Oct 2018 | Visiting student at the Penn State University, Pennsylvania, USA.
Oct 2018 | Participated in the Workshop on Modeling Earthquake Source Processes; Organised by Prof. Nadia Lapusta, Caltech, Pasadena, CA, USA
Sept 2018 | Attended the APEC Cooperation of Earthquake Simulations, Awaji island, Japan.
July 2018 | Participated in a Summer School (The Enrico Fermi International School of Physics: Mechanics of Earthquake Faulting), Varenna, Italy.
June - July 2017 | Visiting student at the National Institute of Geophysics & Volcanology (INGV) and Sapienza University of Rome, Italy
2016 | Field trip in Mersing, Malaysia for the Structural Geology & Tectonics course
2013 | Permanent GPS installation in Mentawai island, Indonesia
Assisted the technical team of Earth Observatory of Singapore with GPS installations (SIOB and TARA) in Sipora Island of Mentawai, Indonesia
2015 | Teaching Assistant for Prof. J. Stephen Lansing's Environment & Society course
2015 | Teaching Assistant for Asst. Prof. Benoit Taisne's Introduction to Field Studies course
2016 | Teaching Assistant for Asst. Prof. Judith Hubbard's Structural Geology & Tectonics course
2016 | Teaching Assistant for Asst. Prof. Sylvain Barbot’s Environmental Earth System Science course
2020 | Recipient of the Nanyang Technological University Graduate College Research Excellence Award
2020 | Got nominated by Nanyang Technological University to attend Global Young Scientists Summit, Singapore
2018 | Travel fund to attend the Workshop on Modeling Earthquake Source Processes, Caltech, Pasadena, United States.
2018 | Travel fund to attend the Joint Workshop on Slow Earthquakes, Fukuoka, Japan.
2018 | Stephen Riady funding to conduct laboratory experiments at the Penn State University, USA.
2018 | Women in Science Conference Grant.
2017 | Travel fund to attend the Joint Workshop on Slow Earthquakes, Matsuyama, Japan.
2017 | Stephen Riady funding to conduct laboratory experiments at the National Institute of Geophysics & Volcanology (INGV), Rome, Italy.
2017 | Finalist in the National Supercomputing Centre (NSCC) Outstanding Innovative Scientific High-Performance Computing (HPC) Deployment at Supercomputing Frontiers (SCF2017).
2015 | Southern California Earthquake Center (SCEC) Travel Award.
2014 | Nanyang Technological University (NTU) Research Scholarship.
2013 | Institute Silver Medal Best student in order of merit among graduating M. Tech students of Dept. of Geology & Geophysics, Indian Institute of Technology Kharagpur, India.
2011 | Graduate Aptitude Test in Engineering (GATE)
2007 | University Grant Commision (UGC) National Eligibility Test (NET) - Lectureship
2007 | University topper among graduating M. Sc students of Dept. of Marine Geology & Geophysics, Cochin University of Science & Technology, India.
Bifurcations at the Stability Transition of Earthquake Faulting. Geophysical Research Letters. 47(19), (2020).
Piecemeal rupture of the Mentawai patch, Sumatra: The 2008 Mw 7.2 North Pagai earthquake sequence. Journal of Geophysical Research. (2017).
The Parkfield Tremors Reveal Slow and Fast Slip on the Same Asperity. Nature. 532, 361–365. (2016).
From Tremors to Megathrust Earthquakes: Slow and Fast ruptures on the same asperity. Asia Oceania Geosciences Society. (2016).
Panoramic view of fault failure modes from laboratory and numerical experiments. European Geosciences Union. (2019).
Joint Workshop on Slow Earthquakes. International Joint Workshop on Slow Earthquakes 2018. (2018).
Large-scale Earthquake Simulations Using Supercomputers. Supercomputing Frontiers. (2017).
A Revised Model of the Parkfield Tremors. Earth Observatory of Singapore (EOS) & Japan Agency for Marine Earth Science and Technology (JAMSETC) collaboration workshop. (2017).
A Revised Model of the Parkfield Tremors. Earth Observatory of Singapore (EOS) Student Symposium. (2017).
A Mechanism for Slow Slip Prior to Devastating Earthquakes. Asia Oceania Geosciences Society 14th Annual Meeting. (2017).
A Revised Model of the Parkfield Tremors. International Conference on Fracture. (2017).
Unifying slow and fast ruptures from lab experiments and numerical simulations. Joint Workshop for Slow Earthquakes. (2017).
Dynamics of fault slip near the stability transition combining laboratory and numerical experiments. American Geophysical Union Fall Meeting 2017. (2017).
The Parkfield Tremors: Slow and Fast Ruptures on the Same Asperity. European Geosciences Union General Assembly (EGU) 2016. (2016).
The Physics of Low-Frequency Earthquakes with Period-Doubling Tremors near Parkfield. American Geophysical Union Fall Meeting. (2015).
Popcorn in an Oven: How Does a Tremor Source Burst into Low- Frequency Earthquakes?. Southern Carolina Earthquake Center Annual Meeting. (2015).
Geometry and Pore Pressure Shape the Period-multiplying Tremors on the Deep San Andreas Fault. Numerical Modeling of Earthquake Motions: Waves and Ruptures . (2015).
Geometry and Pore Pressure Shape the Period-multiplying Tremors on the Deep San Andreas Fault. Asia Oceania Geosciences Society. (2015).
Geometry and Pore Pressure Shape the Pattern of the Tectonic Tremors Activity on the Deep San Andreas Fault with Periodic, Chaotic and Period-Doubling Recurrence Intervals. American Geophysical Union Fall Meeting. (2014).
Geometry and Pore Pressure Shape the Pattern of the Tectonic Tremors Activity on the Deep San Andreas Fault with Period-multiplying Recurrence Intervals. Geodynamics and Environment in East Asia. (2014).