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Increased activity was recorded by PHIVOLCS in September, starting with a series of volcano-tectonic earthquakes on September 9. [13] On September 10, Kanlaon produced its highest volume of sulfur dioxide emissions since 2009, at 9,985 tonnes, prompting PHIVOLCS to raise concern over its possible first magmatic eruption since 1902. [ 14 ]
The seismological arm of PAGASA was officially transferred to PHIVOLC [9] on September 17, 1984 through Executive Order No. 984, renaming the institute as the Philippines Institute of Volcanology and Seismology or PHIVOLCS. [10] The NSTA, the umbrella department for PHIVOLCS and PAGASA, became the Department of Science and Technology (DOST) in ...
Kanlaon, also known as Mount Kanlaon and Kanlaon Volcano (Hiligaynon: Bolkang Kanglaon; Cebuano: Bolkang Kanglaon; Filipino: Bulkang Kanlaon), is an active andesitic stratovolcano and the highest mountain on the island of Negros in the Philippines, as well as the highest peak in the Visayas, with an elevation of 2,465 m (8,087 ft) above sea level. [1]
[9] In Metro Manila the estimated hazard has a mean PGA of 0.32 g for a PoE of 10% in 50 years. The main hazard comes from shallow fault sources, such as the Marikina Valley Fault System, but there is an important contribution to the overall hazard from the Manila subduction zone to the west and the potential for strong shaking from earthquakes ...
The largest aftershock, measuring 6.9 struck on December 4, occurring north of the aftershock sequence [9] near Cagwait. However, PHIVOLCS said that it was a separate earthquake. [10] On August 2, 2024, two M ww 6.8 and 6.3 earthquakes occurred within the area of the 2023 sequence. [11] [12]
The PHIVOLCS earthquake intensity scale (PEIS; Filipino: Panukat ng Pagyanig ng Lindol) [1] is a seismic scale used and developed by the Philippine Institute of Volcanology and Seismology (PHIVOLCS) to measure the intensity of earthquakes. It was developed as upon a specific response to the 1990 Luzon earthquake. PHIVOLCS cites seismic scale ...
The earthquake struck near Davao Oriental early on Thursday morning, August 12. PHIVOLCS earlier listed the earthquake as magnitude 7.3 at a depth of 69 kilometers, then revised its advisory to a magnitude 7.2 earthquake, which occurred at a depth of 50 kilometers.
Macroseismic Intensity Shakemap of the Feb 07 2021 Davao del Sur Earthquake. It was first recorded as magnitude 6.3 by the Philippine Institute of Volcanology and Seismology, which later downgraded it to M w 6.1 at a shallow depth of 10 km.