Structure-from-Motion source images for an inactive perched lava lake formed at Pu'u'o'o (Kilauea) in 2014

Lava flow hazards are usually thought to end when the erupting vent becomes inactive, but this is not always the case. At Kilauea in August 2014, a spiny 'a'a flow...人们通常认为，熔岩流灾害会随喷发喷口（erupting vent）停止活动而终结，但实际情况并非总是如此。2014年8月的基拉韦厄（Kīlauea）火山事件中，一股带有尖刺状特征的阿阿熔岩流（ʻaʻā lava flow）……