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This left-lateral system of faults runs from southeastern Mindanao to northwestern Luzon. Strike-slip deformation within the Philippine Mobile Belt occurs as a result of oblique subduction of the Philippine Sea plate, where the Philippine Fault System accommodates much of it. [5] The fault is seismically active and ruptures periodically in ...
The Philippine fault system is a major inter-related system of geological faults throughout the whole of the Philippine Archipelago, [1] primarily caused by tectonic forces compressing the Philippines into what geophysicists call the Philippine Mobile Belt. [2] Some notable Philippine faults include the Guinayangan, Masbate and Leyte faults.
On Luzon, the fault zone splays out into a number of different faults, including the Digdig Fault. One of the largest historical earthquake on the fault zone was the 1990 Luzon M s 7.8 event that left nearly 2,000 people dead or missing. The same part of the fault zone is thought to have ruptured in the 1645 Luzon earthquake. [7]
The earthquake ruptured approximately 100 km of the Philippine Fault System along the Surigao segment. The Surigao segment strikes in a slightly north-northeast orientation. Left-lateral stream offsets, and 1-meter-high scarps are evident that the fault is active. By studying the surface rupture length, a moment magnitude of 7.4 was estimated. [4]
Salzach-Ennstal-Mariazell-Puchberg Fault System (SEMP) 400 [6] Austria: Sinistral strike-slip: San Andreas Fault System (Banning fault, Mission Creek fault, South Pass fault, San Jacinto fault, Elsinore fault) 1300: California, United States: Dextral strike-slip: Active: 1906 San Francisco (M7.7 to 8.25), 1989 Loma Prieta (M6.9) San Ramón ...
The eThekwini Metropolitan Municipality (Zulu: UMasipala weDolobhakazi laseThekwini) is a metropolitan municipality, created in 2000, that includes the city of Durban and surrounding towns. eThekwini is one of the 11 districts of the KwaZulu-Natal province of South Africa. As of 2011, the majority of its 3,442,361 inhabitants spoke isiZulu.
The strike-slip component of the convergence is accommodated partly by the Philippine fault system and partly by the Cotabato Fault System, a network of mainly NW-SE trending sinistral (left-lateral) strike-slip faults that form the boundary between the Cotabato Arc and the Central Mindanao Volcanic Belt. [8]
The fault from which the earthquake originated is the Masbate segment of the Philippine fault system. [9] [10] ... List of earthquakes in the Philippines; References