The Volcano Observatory Notice to Aviation (VONA) is a notification product used by volcano observatories globally to inform ...
A powerful volcanic eruption in Indonesia sent residents fleeing as Mount Semeru released a towering ash column and pyroclastic flow - a fast-moving, superheated cloud of dense volcanic gas, ash and ...
Volcano Watch” is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory ...
MANILA, Philippines — Lava effusion with lava flow on three gullies and minor ash emissions that generated plume were ...
The U.S. Geological Survey has kicked its Volcano Observatory Notices to Aviation into a new, aviation ready format that lets flight planning systems digest alerts about volcanic plumes and ash more ...
MANILA – There's no need to raise Mayon Volcano's alert status, from Level 3 (intensified unrest/magmatic unrest) to Level 4 ...
SURABAYA, Indonesia – Indonesia's Mount Semeru volcano erupted Wednesday afternoon around 4:00 p.m. local time, sending ash more than 6,500 feet into the air, according to data from the country's ...
Scientists compare volcanic cones on Earth and Mars to explain how gas-rich magma forms scoria cones. Spacecraft observations and Earth analog sites provide evidence of similar eruptive processes.