Didicas
Other Names: Didica, Dedicas, Dedica, Didicas Rocks, Didicas Reef, Didica Shoal, Dedica Reefs
Latitude and Longitude: 19.0753 122.20031
Region: Region 2 (Cagayan Valley)
Tectonic Setting: Subduction (Manila Trench)
Volcanic Arc/Belt: Luzon Volcanic Arc (Batanes Volcanic Arc)
Volcanic Region/Field: Batanes Volcanic Region
Volcano Type: Compound
Last Known Eruption: 1978
Morphometry Type: Sub-cone
Highest Peak (masl): 283 / 233 (derived from USGS, 2014)
Coordinates of Highest Peak: –
Prominence (m): 187
Basal Area (km2): 17.6
Basal Width (km): 4.73
Volume (km3): 2
References:
BM Archives. (1832). Reduzierte Karte von den Philippinen und den Sulu Inseln. https://www.bmarchives.org/items/show/100203207#
Bryant, A., Falls, C., & Squire, J. (1952). The Growth and Progress of a New Volcano: Didicas rises from the Philippine Seas. The Illustrated London News, 1101.
Defant, M. J., Maury, R. C., Joron, J.L., Feigenson, M. D., Leterrier, J., Bellon, H., Jacques, D., & Richard, M. (1990). The geochemistry and tectonic setting of the northern section of the Luzon arc (the Philippines and Taiwan). Tectonophysics, 183, 187-205. https://doi.org/10.1016/0040-1951(90)90416-6
Global Volcanism Program, 2024. Didicas (274020) in [Database] Volcanoes of the World (v. 5.2.0; 6 Jun 2024). Distributed by Smithsonian Institution, compiled by Venzke, E. https://doi.org/10.5479/si.GVP.VOTW5-2024.5.2
Maso, M. S. (1904). Volcanoes and Seismic Centers of the Philippine Archipelago. U.S. Government Printing Office.
PHIVOLCS. (n.d.). Eruption History. https://vmepd.phivolcs.dost.gov.ph/volcan/erupt-history
PHIVOLCS. (n.d.). Volcanoes of the Philippines. https://www.phivolcs.dost.gov.ph/index.php/volcano-hazard/volcanoes-of-the-philippines
PHIVOLCS. (2024). Volcanic Hazard Map of Didicas Volcano. [Map] Version 1. 1:2,000. Quezon City, Philippines: DOST-PHIVOLCS, January 2024.
Sawyer, F.H. (1900) Appendix – Some of the combats, massacres and rebellions, disputes and calamities of the Philippine Islands. In Sawyer, The Inhabitants of the Philippines, (p. 397). William Clowes and Sons Ltd. https://books.google.com.ph/books?id=p3JCAAAAIAAJ&q=