AVO Cleveland YELLOW/ADVISORY – Elevated surface temperatures in the summit crater; no eruptive activity observed.

Jul 23, 2019 18:46 – Elevated surface temperatures at the summit of the volcano were observed in satellite images over the last 24 hours. No activity was detected in regional seismic or infrasound data.

Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently.

Local seismic and …