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| VIbrations caused by sudden movement of surface rocks are |
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| which scientist studies volcanoes |
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| which scientist studies earthquakes and seismic waves |
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| which seismic wave is the last to arrive at a seismic recording station |
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| which seismic wave is the fastest |
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| what do we call the place on the earth's surface where the earthquake occurs |
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| the point at which an earthquake originates |
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| the volcanoes found in the western u.s. tend to be of this type |
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| what type of volcano is composed of alternating layers of lava and ash |
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| what type of volcano has a broad, flat cone shape with gently sloping sides |
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| seismic vibrations can be detected by sensitive instruments called |
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| the most acticce earthquake belt circles the ____ocean |
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| which two states in the u.s. are earthquakes most likely to occur |
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| which scale is used to determine the magniture of an earthquake |
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| which of the following is not a type of seismic wave |
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| what do we call a giant sea wave causes by an earthquake |
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| which part of the earth contains the crust |
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| which type of volcano is formed by explosive eruptions and tends to have a norrow base with steep sides |
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| what is the name of the major earthquake anf volcano zone that surroinds the pacific |
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| kilaeau is a dome shaped volcano that was formed by quite lava flows. what type of vacano is it |
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| the intensity of an earthquake____ as the distance from the epicenter increases |
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| Alfred Wegner proposed a theory of |
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| the name of the super continent that began beaking apart close to 200 million years ago |
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| is the process by which hot material from deep within the earth rises while cooler material near the surface sinks, creating a curcular pattern |
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| the type of tectonic plate boundry involving a collision between two tectonic plates is |
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| when 2 tectonic plates move away, the boundary between them is called |
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| most earthquakes occur along or near the edges of the earths |
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| mid ocean ridges are associated with |
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| long undersea mountains chains that form divergent boundaries are called |
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| a theory that helps explain the causes of both earthquakes and volc. is |
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| layer of earth made up of tectonic plates |
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| fossils of glossopteris........ |
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| continental continental collision causes |
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| when an oceanic plate and another plate converge |
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| molten rock that reaches the earths surface |
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| when rocks shape is changed due to stress |
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| is a fault in which the foot wall moved down in relation to the hanging wall |
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| a reverse fault where the hanging wall slides over the foot wall |
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| a stress that pulls apart rocks from the crust |
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| block or rock below a fault |
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| the force that push and pull on the earths crust causing it to deform |
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| act on rocks to pull them apart |
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| a balance between a downward force and the upward foce oft the mantle |
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| round area shaped like a sphere |
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| type of stress to squeeze rocks together |
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| llayer of the earth that the crust floats on |
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| reverse fault in which the the blocks move horizontally past eachother |
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| a break or crack where little or no movement occurs |
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| formed when the block of land between 2 normal faults slieds down |
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| fold where rocks look like upside down bowl |
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