Bautista, M. L. P., and B. C. Bautista. “The Philippine Historical Earthquakecatalog: Its Development, Current Stateand Future Directions”. Annals of Geophysics 47, no. 2-3 (December 25, 2004). Accessed April 25, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3307.