Locating the Focus of EarthquakeStresses of EarthquakeThisarticle describes a method of locating the focus of a starting earthquake basedon the use of the elastic interaction energy. The method allows determining thefocus location and its energy class as well as evaluating the stresses causedby it ...
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. ...
G. W. Walker, relying on certain observations of the emergence-angle of P waves at Pulkovo, makes the somewhat startling suggestion that the depth of focus is of the order one-fifth of the earth's radius, or about 1250 km. This is a much larger estimate of depth than that hitherto ...
move, creating an earthquake. In addition to the main shaking created by an earthquake, there are often foreshocks and aftershocks. Foreshocks generally increase in magnitude leading to the main earthquake, whereas aftershocks happen ___ and decrease in strength. 相关...
earth tremor,microseism,tremor- a small earthquake seaquake,submarine earthquake- an earthquake at the sea bed geological phenomenon- a natural phenomenon involving the structure or composition of the earth 2.earthquake- a disturbance that is extremely disruptive; "selling the company caused an earthqu...
consequences- the results of a previous action dormant- in an inactive state, when growth and development slow or stop energy- a supply or source of electrical, mechanical, or other form of power epicentre- the exact location on the Earth's surface directly above the focus of an earthquake ...
7 An earthquake is the perceptible shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's crust. This sudden motion causes shock waves (seismic waves) to radiate from their point of origin called the focus and travel through the earth. It is these...
Focus the area in which a subterranean shock occurs deep in the earth’s crust or in, the upper mantle, resulting in an earthquake. Focus in mathematics: (1) The focus of a curve of degree 2—an ellipse, a hyperbola, or a parabola—is a pointFlying in the plane of the curve and ...
1.根据前句11yearsafterthetragedyofWenchuan,a6.0magnitudeearthquakehitSichuanProvinceagainlastnight.汶川惨剧发生11年后,四川省昨晚再次发生6.0级地震。以及后句HewasWangHao,who,afterWenchuan,devotedhimselftodevelopingChina'searthquakeearlywarningsystemthatlastnightsavedhundredsoflives.表示他就是王浩,在汶川地震后,他...
The ruling party was facing an identity crisis.执政党当时正面临着自身认同的危机。boost /bu:st/ vt. 使增长；使兴旺 n. 增长；提高；激励 Getting that job did a lot to boost his ego.得到那份工作使他信心倍增。Winning the competition was a wonderful boost for her morale.赢得了那场比赛使她...