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hypocenterenUK
hy·po·cen·ter H0364400 (hī′pə-sĕn′tər)n. The surface position directly beneath the center of a nuclear explosion.
hy′po·cen′tral (-sĕn′trəl) adj.fo•cus (ˈfoʊ kəs)
n., pl. -cus•es, -ci (-sī, -kī), n. 1. a central point, as of attention or activity. 2. a point at which rays of light, heat, or other radiation meet after being refracted or reflected. 3. a. the focal point of a lens. b. the focal length of a lens. c. the clear and sharply defined condition of an image. d. the position of a viewed object or the adjustment of an optical device necessary to produce a clear image: out of focus. 4. (of a conic section) a point having the property that the distances from any point on a curve to it and to a fixed line have a constant ratio for all points on the curve. 5. the point of origin of an earthquake. 6. the primary center from which a disease develops or in which it localizes. v.t. 7. to bring to a focus or into focus: to focus the lens of a camera. 8. to concentrate: to focus one's thoughts. v.i. 9. to become focused. [1635–45; < Latin: fireplace, hearth] fo′cus•a•ble, adj. TranslationsHypocenterenUK
hypocenter[′hī·pə‚sent·ər] (geophysics) The point along a fault where an earthquake is initiated. Hypocenter the focal point of an earthquake. The depth at which a hypocenter lies can vary from 0 to 700 km. The source of underground shock is movements along tectonic faults, which vary in length up to hundreds of kilometers. In this sense, the hypocenter means the point from which the fault began to rip open. In the upper parts of the earth’s crust (up to 20 km) the hypocenter occurs as a result of brittle deformations in a rock series. Deeper hypocenters arise where plastic deformations prevail. FinancialSeefocus |