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今年２月１９日 ,Ａｌｅｕｔｉａｎ群岛中部的Ｃｌｅｖｅｌａｎｄ火山出现了爆炸性喷发。飞行员报告说火山灰云弥漫至３５０００英尺的高空。灰羽以大约１．８５ｋｍ／ｈ的速度向Ａｋｕ ｔａｎ的丹麦港移动 ,向北延伸了至少７５英里。卫星图像显示灰云的主要部分大都漂移至５５
On February 19 this year, an explosive eruption occurred on the Cleveland volcano in the central Aleutian Islands. Pilots reported that volcanic ash clouds filled the heights to 35,000 feet. The gray plume moved towards Aku tan’s Danish port at about 1.85km / h, extending north for at least 75 miles. Most of the gray clouds in satellite imagery drift largely to 55