Alfredo Mahar Francisco A. Lagmay, Ph.D.

Professor


Position/Designation

Professor
University Scientist III

Educational Background

PhD in Geology (Physical Volcanology, Volcano-Tectonics, Computational Fluid Dynamics) - 2001
University of Cambridge, United Kingdom

Research Interests

Volcano-Tectonics, Remote Sensing, Geohazards  

Selected Publications

Besarra, I., Opdyke, A., Mendoza, J. E., Delmendo, P. A., Santiago, J., Evangelista, D. J., & Lagmay, A. M. F.A., 2025. The cost of flooding on housing under climate change in the Philippines: Examining projected damage at the local scale. Journal of Environmental Management, https://doi.org/10.1016/j.jenvman.2025.124966

Agudo, G.J.L., Garcia, J.E, Pulhin, J.M., Mendoza, J.E,S., K.V.R, Lagmay, A.M.F.A, Cruz, R.V.O, Santiago, J.T, Moises, M.A.M, Esquivel, A.L.J.S, Villamayor, M.T, Peras, R.J.J, Sabino, L. L, Grefalda, L.B, Sajise, A.J.U, Mendoza, M.D., Predo, C.D., 2025. Land Cover Change and Its Associated Impacts on Landscape Fragmentation and Flood Exposure in Quinali A Watershed, Albay, the Philippines. Philippine Journal of Science, Land Cover Change and Its Associated Impacts on Landscape Fragmentation and Flood Exposure in Quinali A Watershed, Albay, the Philippines | Philippine Journal of Science

Mendoza, J. E., Agudo, G. J. L., Lagmay, A. M. F. A., Pulhin, J. M., Cruz, R. V. O., Santiago, J. T., Moises, M. a. M., Predo, C. D., Villamayor, M. T., Mendoza, M. D., Peras, R. J. J., Sabino, L. L., Grefalda, L. B.,Sajise, A. J. U., Pulhin, F. B., Garcia, J. E., Anders, C. S., & Singson, K. V. R. (2025b). Multi-hazard probability assessment in Quinali A Watershed, Albay, Philippines.Environmental Science and Technology, https://doi.org/10.1021/acs.est.4c05383

Sta. Rita, K. S., Valkaniotis, S., & Lagmay, A. M. F., 2024. Surface rupture kinematics of the 2020 Mw 6.6 Masbate (Philippines) earthquake determined from optical and radar data. Natural Hazards and Earth System Sciences, https://doi.org/10.5194/nhess-24-1135-2024

Sulapas, J. J. S., Ybañez, A. A. B., Marasigan, K. M. M., Grageda, J. M. B. M., & Lagmay, A. M. F. A., 2024. Ground subsidence in major Philippine metropolitan cities from 2014 to 2020. International Journal of Applied Earth Observation and Geoinformation, https://doi.org/10.1016/j.jag.2024.104107

Besarra, I., Opdyke, A., Aquino, D. H., Santiago, J., Mendoza, J. E., & Lagmay, A. M. F. A., 2024. Flood fragility and vulnerability functions for residential buildings in the Province of Leyte, Philippines. Journal of Flood Risk Management, https://doi.org/10.1111/jfr3.13043

La Viña, A.G.M., Berse, K.B., Pulhin, J.M., Lagmay, A.M.A., Dedase, K.L.M.C. (2024). Tackling Climate Emergency Head-On: An Action Agenda for Policymakers. Climate Emergency in the Philippines, https://doi.org/10.1007/978-981-99-7804-5_18

Lagmay, Alfedo Mahar Francisco Amante; Santiago, Joy T; Mendoza, Jerico E., 2024. Mainstreaming Climate and Disaster Risk Assessment in the Comprehensive Land Use Plan. Climate Emergency in the Philippines, https://doi.org/10.1007/978-981-99-7804-5_14

Balangue-Tarriela, M. I. R., Lagmay, A. M. F., Sarmiento, D. M., Vasquez, J., Baldago, M. C., Ybañez, R., Ybañez, A. A., Trinidad, J. R., Thivet, S., Gurioli, L., de Vries, B. V. W., Aurelio, M., Rafael, D. J., Bermas, A., & Escudero, J. A., 2022. Analysis of the 2020 Taal Volcano tephra fall deposits from crowdsourced information and field data. Bulletin of Volcanology, https://doi.org/10.1007/s00445-022-01534-y

Llanes, F. V., Eco, R., Herrero, T. M., Briones, J. B. L., Escape, C. M., Sulapas, J. J., Galang, J. A. M., Ortiz, I. J., Sabado, J. M., Lagmay, A. M. F., & Rodolfo, K., 2022. Practices in disaster mitigation in the case of the 2015 Typhoon Koppu debris flows in Nueva Ecija, Philippines. Natural Hazards, https://doi.org/10.1007/s11069-022-05407-7

Pérez, N. M., Melián, G. V., Hernández, P. A., Padrón, E., Padilla, G. D., Baldago, Ma. C., Barrancos, J., Rodríguez, F., Asensio-Ramos, M., Alonso, M., Arcilla, C., & Lagmay, A. M., 2022. Diffuse CO2 degassing precursors of the January 2020 eruption of Taal volcano, Philippines. Scientific Reports,  https://doi.org/10.1038/s41598-022-22066-7

Lagmay, A. M. F. A., Santiago, J., Pulhin, J. M., 2021. Mainstreaming CCA-DRVRM using probabilistic multi-scenario hazard maps for future resilience in Haiyan-affected areas. Climate Change, Disaster Risks, and Human Security: Asian Experience and Perspectives, https://doi.org/10.1007/978-981-15-8852-5_11

Ybanez, R. L., Ybanez, A. A. B., Lagmay, A. M. F. A., Aurelio, M. A., 2021. Imaging ground surface deformations in post-disaster settings via small UAVs. Geoscience Letters, https://doi.org/10.1186/s40562-021-00194-8

Hernández, P.A., Melián, G.V. Asensio-Ramos, M., Padrón, E., Sumino, H. Perez, N. M., Padilla, G. D., Barrancos, J., Rodriguez, F., Amonte, C., Arcilla, C., Lagmay, A.M., Geochemical and isotopic evidence of volcanic plumbing system processes from fumarolic gases of Taal volcano, Philippines, prior to the January 2020 eruption. Chemical Geology, https://doi.org/10.1016/j.chemgeo.2021.120216

Lagmay, A.M.F.A., Balangue-Tarriela, M.I.R.D., Aurelio, M.A., Ybanez, R.L., Ybanez, A.A.B., Sulapas, J., Baldago, C., Sarmiento, D.M., Cabria, H., Rodolfo, R., Rafael, D.J., Trinidad, J.R., Obille, E.J, Rosell, N., 2021. Hazardous base surges of Taal’s 2020 eruption. Scientific Reports, https://doi.org/10.1038/s41598-021-94866-2

Lagmay, A. M. F. A., Escape, C., Ybanez, A. A., Suarez, J. K., & Cuaresma, G., 2020. Anatomy of the Naga City landslide and comparison with historical debris avalanches and analog models. Structural geology and tectonics, https://doi.org/10.3389/feart.2020.00312

Tanaporn Chaivutitorn, Thawalrat Tanasakcharoen, Natt Leelawat, Jing Tang, Carl Vincent C. Caro, Alfredo Mahar Lagmay, Anawat Suppasri, Jeremy D. Bricker, Volker Roeber, Carine J. Yi, and Fumihiko Imamura, 2020. Statistical Analysis of Building Damage from the 2013 Super Typhoon Haiyan and Its Storm Surge in the Philippines. Journal of Disaster Research, Vol.15, No.7, pp. 822-832 doi: 10.20965/jdr.2020.p0822.

Lagmay, A. M., & Baldago, M. C., 2020. A timeline of Mindanao disasters. ISBN 9789715429313.

Lagmay, A. M. F., Racoma, B. A., 2019. Lessons from tropical storms Urduja and Vinta: disasters in the Philippines. Disaster Prevention and Management: An International Journal, https://doi.org/10.1108/DPM-03-2018-0077

Gacusan, R.C.T., Lagmay, A.M.F.A., 2019. Shallow seismic reflection imaging of the Inabanga–Clarin portion of the North Bohol Fault, Central Visayas, Philippines. Geoscience Letters, https://doi.org/10.1186/s40562-019-0139-x

Lagmay, A. M. F. A., 2018. An Open Data Law for Climate Resilience and Disaster Risk Reduction. An Open Data Law for Climate Resilience and Disaster Risk Reduction. (Book), pp. 1-43

Rodolfo, K. S., Lagmay, A. M. F., Eco, R. C., Herrero, T. M. L., Mendoza, J. E., Minimo, L. G., … & Serrado, R. W., 2018. Super Typhoon Bopha and the Mayo River Debris-Flow Disaster, Mindanao, Philippines, December 2012. Climate Change and Global Warming, DOI: 10.5772/intechopen.81669,

Lagmay, A. M. F. A. , 2017. An Open Data Law for Climate Resilience and Disaster Risk Reduction. An Open Data Law for Climate Resilience and Disaster Risk Reduction. (Book). pp. 1-43.

Rodolfo, K. S., Lagmay, A. M. F., Eco, R. C., Herrero, T. M. L., Mendoza, J. E., Minimo, L. G., … & Serrado, R. W., 2018. Super Typhoon Bopha and the Mayo River Debris-Flow Disaster, Mindanao, Philippines, December 2012. Climate Change and Global Warming, DOI: 10.5772/intechopen.81669

Lagmay, A.M.F.A., 2017. Nationwide Operational Assessment of Hazards (NOAH): A responsive program for disaster risk reduction in the Philippines. Humanitarian Technology Survey Policy Report. Pages 16-19
In Cook, A.D.B and Picucci, E.V. (eds)

Lagmay, A.M.F.A., Mendoza, J., Cipriano, F., Delmendo, P., Lacsamana, M., Moises, M., Pellejera, N., Punay, K., Sabio, G., Santos, L., Serrano, J., Tañiza, H., & Tingin, N., 2017. Street floods in Metro Manila and possible solutions. Journal of Environmental Sciences, https://doi.org/10.1016/j.jes.2017.03.004

Lagmay, A.M.F.A., Racoma, B., Aracan, K., Alconis-Ayco, J., & Saddi, I., 2017. Disseminating near-real-time hazards information and flood maps in the Philippines through Web-GIS. Journal of Environmental Sciences, https://doi.org/10.1016/j.jes.2017.03.014

Llanes, F., Bautista, V., Francisco, M.L., Lagmay, A.M.F., Luna, E., Pacheco, B.M., & Talens, E.S., 2017. Disaster Risk Reduction and Management, Handbook for Academic Institutions: The UP Experience. University of the Philippines Press.

F. Llanes, J.A.Galang, M. Rabonza, P.K. Ferrer, A.M.F. Lagmay, N. Eco, C. Cuadra, K. Suarez and L. Dasallas. In book: Eds. F. Llanes, V. Bautista, M.L Francisco, A.M.F. Lagmay, E. Luna, B.M. Pacheco, E.S. Talens., 2017. Geohazard Assessment. Disaster Risk Reduction and Management , Handbook for Academic Institutions: The UP experience. (Book), pp. 51-98.

A.M.F. Lagmay. In book: Eds. F. Llanes, V. Bautista, M.L Francisco, A.M.F. Lagmay, E. Luna, B.M. Pacheco, E.S. Talens., 2017. Climate Change Adaptation and Disaster Risk Reduction in the University Setting. Disaster Risk Reduction and Management , Handbook for Academic Institutions: The UP experience. (Book), pp. 19-32.

Estuar, M. R. E., Ilagan, J. O., Victorino, J. N., Lagmay, M., Hechanova, M. R., 2017. The challenge of continuous user participation in eBayanihan: Digitizing humanitarian action in a nationwide web mobile participatory disaster management system. 2016 3rd International Conference on Information and Communication Technologies for Disaster Management (ICT-DM) IEEE Xplore Digital Library, doi:10.1109/ICT-DM.2016.7857215.

Luzon, P. K., Montalbo, K., Galang, J., Sabado, J. M., Escape, C.M., Felix, R.P., Lagmay, A.M.F.A., 2016. Hazard mapping related to structurally controlled landslides in Southern Leyte, Philippines. Natural Hazards and Earth System Sciences, Volume 16, 875-883, DOI:10.5194/nhess-16-875-2016.

Minimo, L.G., Lagmay, A.M.F.A., 2016. Hazard mapping related to structurally controlled landslides in Southern Leyte, Philippines. Natural Hazards and Earth System Sciences, Volume 16, 875-883, DOI:10.5194/nhess-16-875-2016. 

Norini, G., Zuluaga, M.C., Ortiz, I.J., Aquino, D.T., Lagmay, A.M.F.A., 2016. Delineation of alluvial fans from Digital Elevation Models with a GIS algorithm for the geomorphological mapping of the Earth and Mars. Geomorphology, Volume 273, Pages 134–149, DOI:dx.doi.org/10.1016/j.geomorph.2016.08.010.

Rodolfo, K.R., Lagmay, A.M.F.A., Eco, R.N.C., Herrero, T.M.L., Mendoza, J.E., Minimo, L.G., Santiago, J.T., 2016. The December 2012 Mayo River debris flow triggered by Super Typhoon Bopha in Mindanao, Philippines: lessons learned and questions raised. Natural Hazards and Earth System Sciences, Volume 16, Pages 2683-2695, DOI:10.5194/nhess-16-2683-2016.

Alejandrino, I.K., Lagmay, A.M.F.A., Eco, R.N., 2016. [BOOK CHAPTER] Shallow Landslide Hazard Mapping for Davao Oriental, Philippines, Using a Deterministic GIS Model​. [BOOK] Communicating Climate-Change and Natural Hazard Risk and Cultivating Resilience, Volume 45, 131-147.

AMF Lagmay, 2016. Editors note: Special issue on Filipino Awardees in ACRS 2015. Journal of the Philippine Geoscience and Remote Sensing Society, Volume 2, Issue 1

M.L. Rabonza, R.P. Felix, A.M.F Lagmay, R.N. Eco, I.J. Ortiz, ang D.K. Aquino., 2016. Shallow landslide susceptibility mapping using high-resolution topography for areas devastated by super typhoon Haiyan. Landslides, Volume 13, Issue 1 pp 201-210. doi:10.1007/s10346-015-0626-x.

Lagmay, A.M.F.A., 2015. The Journal of the PGRSS and its significance in Philippine space technology applications. Journal of Philippine Geoscience and Remote Sensing Society, Volume 1, Issue 1, Pages 1–11.

Lagmay, A.M.F., Kerle, N., 2015. Typhoons: Storm-surge models helped for Hagupit. Nature, Volume 519, Issue 7544, Page 414.

Lagmay, A.M.F.A., Bagtasa, G., Crisologo, I.A., Racoma, B.A.B., David, C.P.C., 2015. Volcanoes magnify Metro Manila's southwest monsoon rains and lethal floods. Frontiers in Earth Science, Volume 2, Article 36, 1-9, DOI:doi.org/10.3389/feart.2014.00036.

Lagmay, A.M.F., Agaton, R.P., Bahala, M.A.C., Briones, J.B.L.T., Cabacaba, K.M.C., Caro, C.V.C., Dasallas, L.L., Gonzalo, L.A.L., Ladiero, C.N., Lapidez, J.P., Mungcal, M.T.F., Puno, J.V.R., Ramos, M.M.A.C., Santiago, J., Suarez, J.K., Tablazon, J.P., 2015. Devastating storm surges of Typhoon Haiyan. International Journal of Disaster Risk Reduction, Volume 11, Pages 1-12.

Lapidez, J.P., Tablazon, J., Dasallas, L., Gonzalo, L.A., Cabacaba, K.M., Ramos, M.M.A., Suarez, J.K., Santiago, J.,  Lagmay, A.M.F.A., Malano, V., 2015. Identification of storm surge vulnerable areas in the Philippines through the simulation of Typhoon Haiyan-induced storm surge levels over historical storm tracks. Natural Hazards and Earth System Sciences, Volume 15, Issue 7, 1473-1481. 

Luzon, P. K., Montalbo, K., Galang, J., Sabado, J. M., Escape, C.M., Felix, R.P., Lagmay, A.M.F.A., 2015. Structurally controlled hazard mapping of Southern Leyte, Philippines. Natural Hazards and Earth System Sciences, Volume 3, 5891–5921, DOI:10.5194/nhessd-3-5891-2015. 

May, S.M., Engel, M., Brill, D., Cuadra, C., Lagmay, A.M.F.A., Santiago, J., Suarez, J.K., Reyes, M., Brückner, H., 2015. Block and boulder transport in Eastern Samar (Philippines) during Supertyphoon Haiyan. Earth Surface Dynamics, Vol. 3, 543-558, DOI:10.5194/esurf-3-543-2015.

Rabonza, M.L., Felix, R.P., Lagmay, A.M.F., Eco, R.N., Ortiz, I.J., Aquino, D., 2015. Shallow landslide susceptibility mapping using high-resolution topography for areas devastated by super typhoon Haiyan. Landslides, Volume 13, Issue 1, pp 201–210. 

Ross, M., Santiago, J., Lagmay, A.M.F.A., 2015. Integrating and Applying Technology in Response to the Super Typhoon Bopha Disaster. Procedia Engineering, Volume 107, Pages 100–109, DOI:dx.doi.org/10.1016/j.proeng.2015.06.063.

Tablazon, J., Caro, C.V.,  Lagmay, A.M.F.A., Briones, J.B.L., Dasallas, L., Lapidez, J.P., Santiago, J., Suarez, J.K., Ladiero, C., Gonzalo, L.A., Mungcal, M.T.F., Malano, V., 2015. Probabilistic storm surge inundation maps for Metro Manila based on Philippine public storm warning signals. Natural Hazards and Earth System Sciences, Volume 15, Issue 3, Pages 557-570.

Lapidez JP, Tablazon J, Dasallas L, Gonzalo LA, Cabacaba KM, Ramos MMA, Suarez JK, Santiago J, Lagmay AMF, Malano V, 2015. Identification of storm surge vulnerable areas in the Philippines through the simulation of Typhoon Haiyan-induced storm surge levels over historical storm tracks. Nat Hazards Earth Syst Sci, Vol 15, Pages 1473–1481, DOI:10.5194/nhess-15-1473-2015.

RN Eco, DT Aquino, AMF Lagmay, I Alejandrino, AA Bonus, CM Escape, R Felix, PK Ferrer, RC Gacusan, J Galang, F Llanes, PK Luzon, KR Montalbo, IJ Ortiz, M Rabonza, V Realino, JM Sabado, JJ Sulapas, H Ariola, J Obrique, C Quina, MK Alemania, M Magcamit, S Salvosa, and NL Timbas, 2015. Landslide and debris flow susceptibility mapping of Leyte Province, Philippines using remote sensing, numerical modelling, and GIS. Journal of the Philipppine Geoscience and Remote Sensing Society, Volume 1, Issue 1, Pages 54-71.

A.M.F. Lagmay, B. van Wyk de Vries, N. Kerle and D.M. Pyle. (2000) Volcanic instability induced by strike-slip faulting. Eos. V31-D003.

A.M.F. Lagmay, R.P. Agaton, M.A. Bahala, J.B. Briones, K.M. Cabacaba, C.V. Caro, L.L. Dasallas, L.L. Gonzalo, C.N. Ladiero, J.P. Lapidez, M.F. Muncal, J.R. Puno, M.C. Ramos, J. Santiago, J.K. Suarez, J.D. Tablazon. (2015). Devastating Storm Surges of Typhoon Haiyan. International Journal of Disaster Risk Reduction. V. 11 pp. 1-12.

E. Paguican, B. Van Wyk de Vries and A.M.F. Lagmay. (2014). Hummocks: how they form and how they evolve in rockslide-debris avalanches. Landslides, Vol 11, Issue 1, pp 67-80. 10.1007/s10346-012-0368-y.

Other Information

Notable Awards

  • Asia’s Top 100 scientists – ranked number 10 in 2016, by the Asian Scientist Magazine (ASM)
  • 2015 European Geosciences Union (EGU) Plinius Medal
  • 2013 Outstanding Filipino (TOFIL) Award


Other positions

  • Academician, National Academy of Science and Technology
  • Head, Volcano-Tectonics Laboratory
  • Executive Director, University of the Philippines Resilience Institute
    • established in 2016 to undertake research and creative work, disseminate research findings, and improve the capability of the UP System to formulate and implement advanced academic programs on disaster resilience in the Philippines and the Pacific Rim region.
  • Director, UP Nationwide Operational Assessment of Hazards (NOAH) Center
    • research center established to conduct research, development, and extension services on natural hazards, disaster risk reduction, and climate change actions