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Bohol Fault System
Bohol Fault System, or also known as (BFS), is a reverse fault system in Bohol province, Philippines. This fault system contains 3 segments: the newly found North Bohol Fault following the 2013 Bohol earthquake, the South Offshore Fault, and the East Bohol Fault. The North Bohol fault is located in Inabanga and near Clarin, the South Offshore fault affects the southern towns, while the East Bohol fault starts at the SW part of Bohol from Loay and goes east towards Pilar. Bohol fault segments North Bohol fault The North Bohol fault or Inabanga fault is a reverse fault located at Anonang, Inabanga which was found on 15 October 2013 during the Bohol earthquake. According to the Philippine Institute of Volcanology and Seismology, a new fault occurs only once in a century. The North Bohol fault, shaped as a hanging wall and also known as the "Great Wall of Bohol", became one of the tourist attractions in Bohol province. South Offshore fault The South Offshore Fault is ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippine Institute Of Volcanology And Seismology
The Philippine Institute of Volcanology and Seismology (PHIVOLCS, ; tl, Surian ng Pilipinas sa Bulkanolohiya at Sismolohiya) is a Philippine national institution dedicated to provide information on the activities of volcanoes, earthquakes, and tsunamis, as well as other specialized information and services primarily for the protection of life and property and in support of economic, productivity, and sustainable development. It is one of the service agencies of the Department of Science and Technology. PHIVOLCS monitors volcano, earthquake, and tsunami activity, and issues warnings as necessary. It is mandated to mitigate disasters that may arise from such volcanic eruptions, earthquakes, tsunamis, and other related geotectonic phenomena. History This government organization was formed after a historical merging of official functions of government institutions. One of its first predecessors is the Philippine Weather Bureau created in 1901 when meteorological, seismological a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anda, Bohol
Anda, officially the Municipality of Anda ( ceb, Munisipyo sa Anda; tgl, Bayan ng Anda), is a 5th class municipality in the province of Bohol, Philippines. According to the 2015 census, it has a population of 16,462 people. In 2006, the Anda red hermatite print petroglyphs of Bohol were included in the tentative list of the Philippines for UNESCO World Heritage Site under the name of ''Petroglyphs and Petrographs of the Philippines'', which also includes the Singnapan charcoal-drawn petrographs of southern Palawan, Angono Petroglyphs of Rizal province, Alab petroglyphs of Mountain province, and charcoal-drawn Penablanca petrographs of Cagayan. Etymology The decree in 1875 on the separation of Quinale from Guindulman did not explain why the name "Anda" was chosen. It was presumed that the name referred to Governor General Simón de Anda y Salazar who was Governor General of the Philippines from 1769 to 1770. Simon de Anda was a member of the Royal Audiencia in the Philipp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1990 Bohol Sea Earthquake
The 1990 Bohol earthquake occurred on February 8, 1990 at 15:15:32 (UTC +8) which had a magnitude of 6.8 . The earthquake had a moderate depth of 25.9 km (16 mi). Most of the damage was observed in the province of Bohol. A tsunami hit the southeastern coastline of Bohol and the island of Camiguin. There were 6 deaths, over 200 injuries and an estimated ₱157 million ( $7 million) in total damage reported. Twenty-three years later, a much more devastating 7.2 Mw under the same fault system would strike the island killing 222 individuals. Tectonic Setting The Philippines is usually prone to earthquakes due to its location within the Pacific Ring of Fire, where most of the world's seismological events occur. The Bohol Sea is home to segments of the Philippine Fault System, a system of fault line extending from the Northwestern province of Ilocos Sur, transversing through Quezon province, Masbate Island and the Eastern Visayas region, and ending at the end of Davao ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelasian
The Gelasian is an age in the international geologic timescale or a stage in chronostratigraphy, being the earliest or lowest subdivision of the Quaternary Period/System and Pleistocene Epoch/Series. It spans the time between 2.58 Ma (million years ago) and 1.80 Ma. It follows the Piacenzian Stage (part of the Pliocene) and is followed by the Calabrian Stage. Definition The Gelasian was introduced in the geologic timescale in 1998.Rio, D., Sprovieri, R., Castradori, D., Di Stefano, E"The Gelasian Stage (Upper Pliocene): A new unit of the global standard chronostratigraphic scale" ''Episodes'', Vol. 21, No. 1, March 1998. pp 82-87. Retrieved March 18, 2020. It is named after the Sicilian city of Gela in the south of the island. In 2009 it was moved from the Pliocene to the Pleistocene so that the geologic time scale would be more consistent with the key changes in Earth's climate, oceans, and biota that occurred 2.58 million years ago. The base of the Gelasian is defined magn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Fault
An active fault is a fault that is likely to become the source of another earthquake sometime in the future. Geologists commonly consider faults to be active if there has been movement observed or evidence of seismic activity during the last 10,000 years. * Active faulting is considered to be a geologic hazard - one related to earthquakes as a cause. Effects of movement on an active fault include strong ground motion, surface faulting, tectonic deformation, landslides and rockfalls, liquefaction, tsunamis, and seiches. Quaternary faults are those active faults that have been recognized at the surface and which have evidence of movement during the Quaternary Period. Related geological disciplines for ''active-fault'' studies include geomorphology, seismology, reflection seismology, plate tectonics, geodetics and remote sensing, risk analysis, and others. Location Active faults tend to occur in the vicinity of tectonic plate boundaries, and active fault research has foc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunda Plate
The Sunda Plate is a minor tectonic plate straddling the Equator in the Eastern Hemisphere on which the majority of Southeast Asia is located. The Sunda Plate was formerly considered a part of the Eurasian Plate, but the GPS measurements have confirmed its independent movement at 10 mm/yr eastward relative to Eurasia. Extent The Sunda Plate includes the South China Sea, the Andaman Sea, southern parts of Vietnam and Thailand along with Malaysia and the islands of Borneo, Sumatra, Java, and part of Sulawesi in Indonesia, plus the south-western Philippines islands of Palawan and the Sulu Archipelago. The Sunda is bounded in the east by the Philippine Mobile Belt, Molucca Sea Collision Zone, Molucca Sea Plate, Banda Sea Plate and Timor Plate; to the south and west by the Australian Plate; and to the north by the Burma Plate, Eurasian Plate; and Yangtze Plate. The Indo-Australian Plate dips beneath the Sunda Plate along the Sunda Trench, which generates frequ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippine Sea Plate
The Philippine Sea Plate or the Philippine Plate is a tectonic plate comprising oceanic lithosphere that lies beneath the Philippine Sea, to the east of the Philippines. Most segments of the Philippines, including northern Luzon, are part of the Philippine Mobile Belt, which is geologically and tectonically separate from the Philippine Sea Plate. The plate is bordered mostly by convergent boundaries:Smoczyk, G.M., Hayes, G.P., Hamburger, M.W., Benz, H.M., Villaseñor, Antonio, and Furlong, K.P., 2013Seismicity of the Earth 1900–2012 Philippine Sea Plate and vicinity U.S. Geological Survey Open-File Report 2010–1083-M, scale 1:10,000,000, ''https://dx.doi.org/10.3133/ofr20101083m''. To the north, the Philippine Sea Plate meets the Okhotsk Plate at the Nankai Trough. The Philippine Sea Plate, the Amurian Plate, and the Okhotsk Plate meet near Mount Fuji in Japan. The thickened crust of the Izu–Bonin–Mariana arc colliding with Japan constitutes the Izu Collision Zon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilar, Bohol
Pilar, officially the Municipality of Pilar ( ceb, Munisipyo sa Pilar; tgl, Bayan ng Pilar), is a 4th class municipality in the province of Bohol, Philippines. According to the 2020 census, it has a population of 28,693 people. The town of Pilar, Bohol celebrates its fiesta on October 10, to honor the town patron Virgen del Pilar. History Pilar was formerly a barrio known as Banlasan, which is used to be the town center of the municipality of Sierra Bullones. Constant flooding from Wahig River led residents of Sierra Bullones to transfer their town center at barangay Candagaz and named it as Poblacion. Banlasan was then called ''Lungsod Daan'' which means old town. On December 29, 1961, Lungsod Daan became an independepent municipality and it was renamed Pilar after the patron saint, Virgen del Pilar. A total of 16 barangays from the municipalities of Candijay, Guindulman, Sierra Bullones, and Ubay are carved out from their territories to form the new municipality throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carmen, Bohol
Carmen, officially the Municipality of Carmen ( ceb, Munisipalidad sa Carmen; tgl, Bayan ng Carmen), is a 2nd class municipality in the province of Bohol, Philippines. According to the 2020 census, it has a population of 49,191 people. The town of Carmen, Bohol celebrates its fiesta on January 17, to honor the town patron Saint Anthony de Abbot. History Carmen was originally part of the municipality of Bilar and called Imbaya, after the name of a stream in the settlement. During the Spanish time, it was inhabited by not more than fifty families. In 1868, the people of Carmen petitioned for its independence since its population grew to an unprecedented number. The town of Carmen was founded on 1 March 1869 by final order of Governor General Jose de la Gandara and renamed at the same time in honor of the Lady of Carmel of Spain. In 1874, the town of Carmen had its separate parish with Father Pedro Nolasco San Juan as the first parish priest. Due to the influence of Spani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batuan, Bohol
Batuan, officially the Municipality of Batuan ( ceb, Lungsod sa Batuan; tgl, Bayan ng Batuan), is a 5th class municipality in the province of Bohol, Philippines. According to the 2020 census, it has a population of 13,845 people. Batuan is from Tagbilaran, and is located in the interior part of the island. It is accessible via the Tagbilaran–Loay–Carmen national road or the Tagbilaran–Balilihan–Batuan provincial road. It marches with Sagbayan to the north, with Bilar to the south, with Carmen and Valencia to the east, and with Catigbian and Balilihan to the west. Batuan covers a total area of comprising fifteen barangays as per the Municipal Comprehensive Development Plan for 1983–1992. However, a certification of the land area of Batuan, issued by ARED for operations, DENR Regional Office Region No. 7 Cebu City on 26 November 2001 at the instance of the LGU in connection with its Comprehensive Land Use Plan (CLUP) preparation work, showed a land area of only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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