The National Institute of Geological Sciences is pleased to recognize the outstanding achievements of its graduate students who successfully defended their theses from January to March 2026. These scholars have demonstrated exceptional dedication, rigorous research, and academic excellence in advancing the field of geology. Their work spans topics from volcanology and geochemistry to seismology and micropaleontology, reflecting NIGS’ commitment to producing research that contributes to both scientific knowledge and societal understanding of Earth processes.
1. Ms. Erizza Rose U. Santos – Master of Science in Geology
- Thesis Title: Physical Volcanology and Geochemistry of the June 1897 Eruption of Mayon Volcano, Philippines
- Defense Date : 27 January 2026
Ms. Santos’ research provides critical insights into the eruptive history and geochemical characteristics of Mayon Volcano, contributing to improved understanding of volcanic processes and hazards.
(Photo: Ms. Errizza with her thesis adviser Dr. Sandra Catane)
2. Ms. Julizza Rose A. Edulan – Master of Science in Geology
- Thesis Title: Physical and Geochemical Characteristics of Monogenetic Cones in the Makiling-San Pablo Volcanic Field (MSVF), Philippines
- Defense Date: 30 January 2026
Ms. Edulan’s study explores the formation and geochemistry of monogenetic cones in the Makiling-San Pablo Volcanic Field, providing valuable insights into volcanic processes and regional hazard assessment.
(Photo: Ms. Julizza and with her Thesis Adviser Dr. Sandra Catane)
3. Ms. Jamie Mary Loise C. Tan – Master of Science in Geology
- Thesis Title: Seismological and Geological Evaluation for Seismic Site Response in Metro Manila using Accelerometer Data of Moderate to Strong Earthquakes
- Defense Date: 13 February 2026
Ms. Tan’s work enhances knowledge of seismic site response in Metro Manila, contributing valuable data for earthquake hazard assessment and mitigation planning in the capital region.
(Photo: Ms. Jamie Mary with her Thesis Adviser Dr. Alfredo Mahar Lagmay)
4. Ms. Sandra Donna A. Catugas – Master of Science in Geology
- Thesis Title: Rupture Geometry and Static Stress Changes of the 2022 Mw 7.0 and Mw 6.4 Earthquakes in Abra
- Defense Date: 11 March 2026
Ms. Catugas’ research contributes to understanding earthquake mechanics and stress redistribution, offering crucial insights for seismic hazard evaluation in northern Philippines.
(Photo: Ms. Sandra with her (right) Thesis Adviser Dr. Mario Aurelio and (Left) Thesis Co-Adviser Dr. JD Dianala)
5. Mr. Joeven Austine S. Calvelo – Master of Science in Geology
- Thesis Title: Coccolithophore-Environment Relationship and Coccolithophore-Based Transfer Functions in the Western Pacific
- Defense Date: 18 March 2026
Mr. Calvelo’s study advances knowledge in micropaleontology and paleoenvironmental reconstruction, shedding light on marine ecosystems in the Western Pacific.
(Photo: Mr. Joeven with her Thesis Adviser Dr. Alyssa M. Peleo-Alampay)
The NIGS community applauds these students for reaching this important academic milestone and wishes them continued success in their future research and professional endeavors.