Potential hazards are caused by ash plumes, ash falls, lava and pyroclastic flows, and lahars.
Alaid exposes high potential hazard to the aircrafts flying over Kamchatka and the Northern Kuriles because its eruptive clouds can rise to a height of 10-15 km above the crater and extend for hundreds of kilometers (up to 1500 km) and the duration of eruptions can exeed a few months.
Ash falls possible at:
Severo-Kurilsk (45 km to the south-east from the volcano)
Ozernovsky (90 km to the north-east)
Ust’-Bolsheretsk (215 km to the north-north-east)
Petropavlovsk-Kamchatsky (310 km to the north-east)