| 41. | Lahar is composed of volcanic debris and water.
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| 42. | A lahar is a volcanic mudflow or landslide.
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| 43. | A separate hot lahar went down Mud Creek.
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| 44. | A lahar of similar magnitude to the 1953 one occurred on 18 March 2007.
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| 45. | In both cases, the lahars traveled down the Skagit River to Puget Sound.
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| 46. | The valley's 150, 000 residents are at risk from future lahars.
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| 47. | Lahars are also a hazard of this volcano.
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| 48. | Here, more than of stacked hyaloclastite, lahars and lacustrine tuff were deposited.
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| 49. | A third major pulse brought the lahar's duration to roughly two hours.
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| 50. | The lessons from the Armero tragedy have inspired a lahar warning system for Mt.
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