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United States Geological Survey shake map for the 2019 Luzon earthquake; a maximum Mercalli intensity scale value of 6.6 was observed in Gutad, Floridablanca, Pampanga. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) initially reported an earthquake of magnitude 5.7 striking at 17:11 PST with an epicenter two kilometers N 28° E of Castillejos, Zambales.
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.
Much of an earthquake's total energy as measured by M w is dissipated as friction (resulting in heating of the crust). [52] An earthquake's potential to cause strong ground shaking depends on the comparatively small fraction of energy radiated as seismic waves, and is better measured on the energy magnitude scale, M e. [53]
A magnitude 3.6 earthquake rattled northern Illinois and parts of three other states early Wednesday, awakening some residents and spurring reports to 911 about homes shaking, the U.S. Geological ...
The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]
The list incorporates high-quality earthquake source (i.e., origin time, location and earthquake magnitude) and fatality information from several sources. Earthquake locations are taken from the Centennial Catalog [ 1 ] and the updated Engdahl, van der Hilst and Buland earthquake catalog, [ 2 ] which is complete to December 2005.
A magnitude 6.1 earthquake hit the Philippines near Dagupan, Luzon, on June 16, at a depth of 35.3 km. [78] A magnitude 6.4 earthquake struck in the Pacific Ocean 28 km southeast of Ofunato, Japan on 18 June, at a depth of 36 km. [79] A magnitude 6.0 quake struck 24 km northwest of Macquarie Island Australia, on June 22, at a depth of 9.9 km. [80]
Luzon, Philippines see 2019 Luzon earthquake: 14.924 120.497 18 6.1 M w (USGS) Centred 0 km ESE of Gutad, Philippines, at a depth of 20.0 km. [313] May 6, 2019 21:19 Eastern New Guinea region, Papua New Guinea -6.975 146.449 0 7.1 M w (USGS) Centred 33 km NW of Bulolo, Papua New Guinea, at a depth of 146.0 km. [314] May 14, 2019 12:58