Guest Speaker: Jeffrey Perez, M.Eng.

This episode highlights the research of Mr. Perez on the prehistoric earthquakes from the Surigao segment of the Philippine Fault.

Mr. Jeffrey S. Perez is a licensed geologist and a Supervising Science Research Specialist at PHIVOLCS. He is a graduate of BS Geology from the UP Diliman and gained a Master of Engineering Major in Civil and Environmental Engineering from Saitama University, Japan. He has also taken graduate school units at Kyoto University, Japan. He was a recipient of the 2017 Outstanding Young Scientists Award by the National Academy of Science and Technology, Philippines (NAST, Ph) and the DOST International Publication Award (2015, 2018, 2021 and 2023). In 2018, he was one of the eight (8) Filipinos who were part of the Asian Scientist 100 list. Currently, he supervises the Disaster Risk Reduction Research and Development Section of PHIVOLCS.

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Research spotlight:

Perez JS, Tsutsumi H. 2017. Tectonic geomorphology and paleoseismology of the Surigao segment of the Philippine fault in northeastern Mindanao Island, Philippines. Tectonophysics. 699:244–257.

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👤Guest Speaker: Raquel Felix, PhD

This episode highlights the work of Dr. Raquel Felix on modelling the tsunami scenarios in Lombok and Bali, Indonesia.

Dr. Felix is a Postdoctoral Research Fellow in the Coastal Lab at the Earth Observatory of Singapore, Nanyang Technological University (NTU), Singapore. She completed her PhD in 2023 at NTU, within the Asian School of the Environment (ASE). Her research focuses on tsunami hazard assessment through modeling and the development of user-friendly applications for tsunami modeling. Raquel holds a BSc and MSc in Geology from the University of the Philippines (UP) Diliman. During her Master's studies, she worked as a Science Research Specialist in the Nationwide Operational Assessment of Hazards Project (Project NOAH) at UP.

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Felix, R. P., Hubbard, J. A., Bradley, K. E., Lythgoe, K. H., Li, L., and Switzer, A. D., 2022: Tsunami hazard in Lombok and Bali, Indonesia, due to the Flores back-arc thrust, Nat. Hazards Earth Syst. Sci., 22, 1665–1682.

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Guest Speaker:

Iris Mabanta

MS Marine Science Student

UP Marine Science Institute

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Guest Speaker:

K.L. Garas, T. Watanabe, A. Yamazaki (2023) Hydroclimate seasonality from paired coral Sr/Ca and δ18O records of Kikai Island, southern Japan: evidence of East Asian monsoon during mid-to late Holocene. Quat. Sci. Rev., 301 (2023), Article 107926

#BehindTheSciencePodcast is presented to you by the Marine & Earth Science Learning Hub, UP Resilience Institute, and Liknayan Podcast.

Guest Speaker:

Deo Carlo Llamas, MSc

Science Research Specialist

Philippine Institute of Volcanology and Seismology

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Research spotlight:

Llamas, D. C. E., Perez, J. S., Legaspi, C. J. M., Acid, J. J. S, Naing, J. P. S., and Papiona, N. K., 2024, Stress releases and seismic gaps: Earthquake sequences strike Eastern Mindanao, Philippines, Temblor

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Guest Speakers:

1) Dominic Panaligan - Instructor & MS Food Science Student, UP Diliman

2) Isaac Sy - BS Computer Engineering Student, UP Diliman

Research spotlight:

Panaligan D, Sy ICB, Sarza RM. 2024. Harnessing artificial intelligence in microbial food safety: global progress and implications in the ASEAN region. International Journal of Food Science & Technology.‌

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A native of Iloilo, Dr. John Dale Dianala is an Assistant Professor at the University of the Philippines - National Institute of Geological Sciences. His research focuses on understanding where, how often, and why earthquakes happen by studying how tectonic faults accumulate and release stress. He primarily works with satellite radar (InSAR) and GPS data to map and model earthquake sources and the seismic cycle, and high-resolution digital elevation models to tease out the 'scars' of past earthquakes in the landscape. JD also uses remote sensing data in aid of earthquake quick response. He obtained his Bachelors and Masters of Science degrees in Geology at UP Diliman, and his PhD in Earth Sciences from the University of Oxford in 2021. Aside from his research, JD takes watching films very seriously.

Research spotlight:

Dianala JDB, Jolivet R, Thomas MY, Fukushima Y, Parsons B, Walker R. 2020. ⁠The Relationship Between Seismic and Aseismic Slip on the Philippine Fault on Leyte Island: Bayesian Modeling of Fault Slip and Geothermal Subsidence⁠. Journal of Geophysical Research: Solid Earth. 125(12).

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Ms. Lala Grace Calle is currently an editor at Cactus Communications. She holds a Bachelor of Science in Fisheries from the University of the Philippines Visayas and is currently pursuing a Master of Marine Science at the University of the Philippines Diliman. From 2017 to 2021, she worked with the Coral Reef Ecology Laboratory, where her team concentrated on assessing the status of giant clams in the Philippines. In 2022, she was among the researchers stationed on Pag-asa Island to evaluate the surrounding coral reefs. Her research interests lie in molluscan behavior and behavioral ecology, with a particular focus on the activity patterns and foraging behavior of the helmet shell, Cassis cornuta.

Research spotlight:

Calle LG, Cabaitan PC, Lyn S, Shau Hwai Tan, Conaco C. 2024. Ontogenetic variability in the diel activity pattern of the marine gastropod Cassis cornuta (Mollusca: Cassidae). Journal of molluscan studies. 90(1).

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Kilalanin ang mga tao sa likod ng channel na ito.

Ms. Ruth Esther Delina-Agillon is a PhD student specializing in environmental mineralogy and geochemistry at the Interface Geochemistry section of the GFZ German Research Centre for Geosciences. She obtained her MSc in Geology from the University of the Philippines Diliman, where she also served as an instructor. Her passion for teaching and research led her to extend her MSc work on Philippine nickel mining areas through the DAAD German Academic Exchange Service Doctoral Research Grant. The main goal of her PhD research is to trace the fate of potentially toxic metals, such as chromium, in these mining areas for water quality management.

Research spotlight:

Delina RE, Arcilla C, Otake T, Garcia JJ, Tan M, Ito A. 2020. Chromium occurrence in a nickel laterite profile and its implications to surrounding surface waters. Chemical Geology. 558:119863.

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