地震是由两块地壳构造板块互相碰撞造成的。
Earthquakes are caused by two tectonic plates bumping into each other.
基本上，俯冲带就是两个地壳构造板块碰撞的地方。
Basically, a subduction zone is where two tectonic plates collide.
箭头所示为地壳构造板块之间不同类型的边界。
The arrows show the different types of boundary between Earth's tectonic plates.
同天，9.0级的地震及海啸在日本发生。但这两个地方并不处在同一个地壳构造板块上。
That was the same day as the 9.0-magnitude quake and tsunami hit Japan; however, Japan is on a different tectonic plate.
2007年，在日本沿海，地球号开展了第一项任务：研究俯冲带(地壳构造板块之间的区域，许多地震都发生在这种区域)。
In 2007, off the coast of Japan, it became the first mission to study subduction zones, the area between tectonic plates that is the birthplace of many earthquakes.
此外，两个地区都驻留在火山圈内，那是环绕太平洋的一个区域。在那里太平洋地壳构造板块和其它板块潜于其它地球板块之下。
In addition, both regions reside within the Ring of Fire, which is a zone surrounding the Pacific Ocean where the Pacific tectonic plate and other plates dive beneath other slabs of Earth.
根据一项新研究，沿地壳构造板块边缘的地震带远比缺乏活动的地带更可能产生伟大的远古文明，研究者称这种联系说明通常被视为破坏性的地质能量，比如地震，在人类历史中或许也起过建设性作用。
Researchers say the relationship suggests that forces typically viewed as destructive--such as earthquakes--might have also played a constructive role in human history.
地球表面并不是由构成地壳的单块岩石构成，而是许多紧密相连的“构造板块”，像一块巨大的拼图。
Earth's surface is not made up of a single sheet of rock that forms a crust but rather a number of "tectonic plates" that fit closely, like the pieces of a giant jigsaw puzzle.
沙莰基隆起形成于三个地质板块的的交叉点上，通常被科学家称为三向连接的地质构造。那里的地壳很薄，带有靠近海面的岩浆。
Shatsky Rise formed at the intersection of three tectonic plates, known as a triple junction, where the crust is thin, with magma coming from near the surface.
地壳在这里碰撞挤压，上涌的炙热岩浆变冷，又形成了新的地壳，这种伟大的循环过程就是所谓的板块构造。
Here Earth's crust pulls apart, and upwelling magma cools and forms new crust that spreads away from the ridge in the great recycling process known as plate tectonics.
当各大洋重新出现时，新地壳便从各个火山喷涌而出；当构造板块移回到海底深处(这些火山的最终喷发就是源于海底深处)时，旧地壳便被摧毁。
As oceans reopen new crust is pulled forth from volcanoes; old crust is destroyed as tectonic plates return to the depths from which those volcanoes ultimately draw their fire.
当构造板块移回到海底深处(这些火山的最终喷发就是源于海底深处)时，旧地壳便被摧毁。
Old crust is destroyed as tectonic plates return to the depths from which those volcanoes ultimately draw their fire.
来自板块之间相对运动的构造力可以传递到大陆地壳，从而形成了大陆内部的地震应力场。
Tectonic forces from the relative movements between plates are transmitted into the continental crust, and then they create the earthquake generating stress field there.
大陆地壳长时期内未受到板块构造的或造山活动的很多影响的稳定区。
A stable area of continental crust that has not undergone much plate tectonic or orogenic activity for a long period.
中国地壳与上地幔的地球物理探测对于全球板块构造和其动力系统的研究有着重要意义。
Geophysical studies of the earth's crust and upper mantle in China are important in the understanding of the global plate tectonics and its dynamical system of the whole region.
海底峡谷，是由于地壳板块运动而形成的一种地质构造。
Submarine canyon is a geological structure that formed by plate movement in the crust.
在隐没带，当更老的和更冷的海洋地壳下降到另一个构造板块下面时，深震源地震可能会发生在非常深的深度(达到700公里)。
In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, Deep focus earthquakes may occur at much greater depths (up to seven hundred kilometers).
板块构造论认为，地球表面由十来个巨大的地壳板块构成，漂浮在浩瀚如海的部分熔岩上。
The theory of plate tectonics holds that the surface of Earth is composed of a dozen or so huge crustal slabs that float on a sea of partially molten rock.
不仅如此，由于中国所在大陆板块年代已久，很多地区地壳都很脆，且构造相似。
Moreover, much of the crust that lies beneath China is brittle and uniform because of the relative old age of the landmass.
地壳从地幔中熔融出来是地质学立论的基础，也是板块构造运动的基本原因。
The Earth's crust being molten and differentiated from the mantle has long been the foundation of geology and also has been taken as the fundamental cause of plate movement.
介绍了关于地球地壳运动的板块学说理论，主要内容是板块运动的动力、板块的划分、板块的分界线，以及板块构造学说与地震的关系。
Plate tectonics is explained, including motive force of crustal movement, delimitation and boundary of plates, relation be-tween plate tectonics and earthquake.
信浓川地震带位于日本大地沟北部，地壳运动十分强烈，区内地震主要沿信浓川流域发生，并密集成带，大地构造上处于日本海板块向本州板块俯冲的边界线上。
The Shinanogawa seismic belt, which is developed in the Northern Fossa Magna, Honshu Island, Japan, extends along the Shinano River bounding the Eurasian Plate and the Okhotsk Plate.
信浓川地震带位于日本大地沟北部，地壳运动十分强烈，区内地震主要沿信浓川流域发生，并密集成带，大地构造上处于日本海板块向本州板块俯冲的边界线上。
The Shinanogawa seismic belt, which is developed in the Northern Fossa Magna, Honshu Island, Japan, extends along the Shinano River bounding the Eurasian Plate and the Okhotsk Plate.
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