Search results
Results From The WOW.Com Content Network
Learn about the seismic scale developed by the Philippine Institute of Volcanology and Seismology (PHIVOLCS) to measure the intensity of earthquakes. The scale has ten levels from I to X, ranging from scarcely perceptible to completely devastating, based on the effect of the earthquake on people, structures and objects.
Learn about the different methods of seismic analysis, such as equivalent static, response spectrum, linear dynamic, nonlinear static and time history analysis. Find out how seismic analysis is used in structural design, earthquake engineering and assessment of buildings and nonbuilding structures.
PHIVOLCS is a national institution that provides information and services on volcanic, seismic, and tsunami activities in the Philippines. It was formed in 1982 from the merger of the Commission on Volcanology and the seismological arm of PAGASA, and is under the Department of Science and Technology.
The Marikina Valley Fault System is a strike-slip fault system in Luzon, Philippines that runs through Metro Manila and nearby provinces. It has two major segments, West Valley Fault and East Valley Fault, and poses a threat of a large scale earthquake with high magnitude and casualties.
The 2019 Eastern Samar Earthquake struck the islands of Visayas in the Philippines on April 23, 2019 at 1:37:51 p.m. . [3] It had a moment magnitude of 6.5 [ 3 ] ( M ww 6.4 by USGS ) [ 4 ] and a local magnitude of 6.2 [ 5 ] with a max intensity of VI based on the PHIVOLCS Earthquake Intensity Scale(PEIS) . [ 3 ]
Seismic hazard is the probability of earthquakes and ground motion in a given area and time. Learn how seismic hazard is estimated, measured and mapped, and how it differs from seismic risk and MCEs.
The 2019 Cotabato earthquakes were an earthquake swarm which struck the province of Cotabato on the island of Mindanao in the Philippines in October 2019. [6] Three of these earthquakes were above 6.0 on the moment magnitude scale with a Mercalli intensity of VIII. More than 40 people have been reported dead or missing and nearly 800 were ...
The earthquake may be the result of movement on the Tangbulan Fault, according to PHIVOLCS. [ 7 ] [ 8 ] [ 9 ] There were a series of large aftershocks , including nine of M ≥ 5.0 in the first 48 hours after the mainshock, [ 10 ] with the largest being an mb 5.7 event about an hour afterwards, which had a maximum felt intensity of VII (MMI).