| 41. | An earthquake's magnitude is a measure of its total energy, as indicated by ground motion recorded on seismographs.
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| 42. | Buildings in seismic zones are often constructed to take into account the oscillating frequencies of expected ground motion.
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| 43. | "We keep the camera moving very quickly, with a lot of foreground and middle-ground motion, " said Elliott.
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| 44. | A quake's magnitude is a measure of its total energy, as indicated by ground motion indicated on seismographs.
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| 45. | A quake's magnitude is a measure of its total energy as indicated by ground motion recorded on seismographs.
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| 46. | The lack of ground motion means that regional building codes should be relaxed rather than strengthened, Stein said.
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| 47. | Am earthquake's magnitude is a measure of its total energy as indicated by ground motion recorded on seismographs.
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| 48. | Japan uses a scale of one to seven to measure ground motion in an earthquake at various locations.
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| 49. | The magnitude measures the total energy released by an earthquake, as indicated by ground motion recorded on seismographs.
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| 50. | An temblor's magnitude is a measure of its total energy, as indicated by ground motion recorded on seismographs.
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