Semeru Volcano Volcanic Ash Advisory: DISCRETE VA EMISSIONS TO FL140 OBS FM GND 20/2315Z to 14000 ft (4300 m)
Merapi Volcano Volcanic Ash Advisory: continuous ash emissions to 14000 ft (4300 m)
This plastic bottle was sealed at approximately 14,000 feet (4,300 m) altitude, and was crushed by the increase in atmospheric pressure —at 9,000 feet (2,700 m) and 1,000 feet (300 m)— as
14000 feet | Singersong Blog
Semeru Volcano Volcanic Ash Advisory: REGULAR VA TO FL140 OBS AT 19/2330Z MOV WNW to 14000 ft (4300 m)