火山爆炸的岩浆使得那里的岩石松动和形成了冰粒子，当它们在大气中相互碰撞时，就有可能出现像图片上的那种“肮脏雷雨”。
Such "dirty thunderstorms" may occur when rock and ice particles loosed by exploding magma collide in the atmosphere.
沉寂了九千年之后，智利的Chaiten火山爆发，于5月3日引发了一场“肮脏的雷雨。”
After 9,000 years of silence, Chile's Chaiten volcano erupted, generating on May 3 what may have been a "dirty thunderstorm."
沉寂了九千年之后，智利的Chaiten火山爆发，于5月3日引发了一场“肮脏的雷雨。”
After 9,000 years of silence, Chile's Chaiten volcano erupted, generating on May 3 what may have been a "dirty thunderstorm."
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