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The Marikina Valley fault system, also known as the Valley fault system (VFS), is a dominantly right-lateral strike-slip fault system in Luzon, Philippines. [2] It extends from Doña Remedios Trinidad, Bulacan in the north, running through the provinces of Rizal, the Metro Manila cities of Quezon, Marikina, Pasig, Taguig and Muntinlupa, and the provinces of Cavite and Laguna, before ending in ...
It is one of the deadliest typhoons on record in the Philippines, [2] killing at least 6,300 people in the region of Visayas alone. [3] In terms of JTWC-estimated 1-minute sustained winds, Haiyan is tied with Meranti in 2016 for being the second strongest landfalling tropical cyclone on record, only behind Goni of 2020 .
The event was one of the largest continental strike-slip earthquakes of the century. It was associated with a 125 km (78 mi) long surface rupture on the Philippine Fault System. Rupture occurred bilaterally, extending from the hypocenter, but most of the rupture occurred northwest for 75–100 km (47–62 mi). About 25 km (16 mi) north of the ...
Japan is one of the wealthy nations that experience earthquakes frequently, and a 7.0 in 2021 caused very little damage. Strong emergency management agencies are also important.
For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.
When one of the plates is composed of oceanic lithosphere, it dives beneath the other plate (called the overriding plate) and sinks into the Earth's mantle as a slab. The contact between the colliding plates is the megathrust fault, where the rock of the overriding plate is displaced upwards relative to the rock of the descending slab. [5]
The system affected the Yucatán Peninsula on September 25, before making landfall in the Big Bend region of Florida late on September 26 as a Category 4 hurricane, where it rapidly weakened into a tropical depression by noon of September 27. [30] Hurricane Isaac formed on September 26 and later peaked as a Category 2 hurricane. [31]
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (Filipino: Pangasiwaan ng Pilipinas sa Serbisyong Atmosperiko, Heopisiko at Astronomiko, [4] abbreviated as PAGASA, which means "hope" as in the Tagalog word pag-asa) is the National Meteorological and Hydrological Services (NMHS) agency of the Philippines mandated to provide protection against natural calamities ...