Volcanic Ash Advisory - Sakurajima Eruption

Situation Overview

Mount Sakurajima (Kagoshima Prefecture, Japan) experienced major eruption producing volcanic ash column reaching FL420+. Ash cloud drifting east affecting multiple airports across Japan. Reduced visibility and engine contamination risks forcing flight diversions and cancellations.

Additional Details

Volcanic ash concentration exceeding safe limits (10 microns/m³) detected up to 180nm from source. Japan Airspace Authority issued SIGMET and volcanic ash advisory. Multiple trans-Pacific flights rerouted through northern corridors.