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| Hundreds of lahars sweeping down from nearby Unzen Volcano in Japan buried, crushed, or carried away more than a thousand homes like this one along the Mizunashi River. Between August 1992 and July 1993, lahars triggered by heavy rains damaged about 1,300 houses. Each period of heavy rain required the sudden evacuation of several thousand residents along two rivers heading on the volcano. The deposits from these lahars consisted chiefly of lava fragments derived from partial collapses of the summit lava dome located 5 to 8 km upstream. |
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