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As an example, in the magnitude 7.9 Denali earthquake of 2002 in Alaska, the epicenter was at the western end of the rupture, but the greatest damage was about 330 km (210 mi) away at the eastern end. [7] Focal depths of earthquakes occurring in continental crust mostly range from 2 to 20 kilometers (1.2 to 12.4 mi). [8]
The epicenter, or epicentre, is the point on the Earth's surface that is directly above the point where an earthquake or underground explosion originates. Epicenter or epicentre may also refer to: Blast seat, the point of detonation of an explosive device; Epicenter, a 2006 book by Joel C. Rosenberg
Hypocenter (Focus) and epicenter of an earthquake. An earthquake's hypocenter or focus is the position where the strain energy stored in the rock is first released, marking the point where the fault begins to rupture. [3] This occurs directly beneath the epicenter, at a distance known as the hypocentral depth or focal depth. [3]
'Epicenter' (or 'epicentre') is a term invented by scientists to refer to something very specific (and yes, mashing Greek and Latin together like that is illiterate). 'Work', 'moment' and 'force' are words that existed in the language long before scientists re-purposed them. 'Work' and 'force', in particular, are fine anglo-saxon words.
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes can trigger landslides . Earthquakes' occurrence is influenced by tectonic movements along faults, including normal, reverse (thrust), and strike-slip faults, with energy release and rupture dynamics governed by ...
Even if the depth of focus of an earthquake is very deep, it can still have a very short epicentral distance. [3] When measuring the epicentral distance of an earthquake with a small epicentral distance, first measure the reading of the initial motion of P wave, and then confirm the arrival of S wave.
Capping inversion (cap); Center for Analysis and Prediction of Storms (CAPS); Center for Severe Weather Research (CSWR); Chaser convention – Originally it referred to serendipitous meeting of chasers in the field akin to "chaser convergence", but now it mostly refers to the National Storm Chasers Convention Archived 2013-06-22 at the Wayback Machine held annually in the Denver, Colorado area.