Streams of red hot lava flow as Mount Etna, Europe's most active volcano, leaps into action, seen from Zafferana Etnea, Italy, February 21, 2021. The 3,330 meter high volcano on Sicily, can burst into action several times a year. REUTERS/Antonio Parrinello

Streams of red hot lava flow as Mount Etna, Europe's most active volcano, leaps into action, seen from Zafferana Etnea, Italy, February 21, 2021. REUTERS/Antonio Parrinello

Streams of red hot lava flow as Mount Etna, Europe's most active volcano, leaps into action, seen from Zafferana Etnea, Italy, February 21, 2021. REUTERS/Antonio Parrinello

Streams of red hot lava flow as Mount Etna, Europe's most active volcano, leaps into action, seen from Zafferana Etnea, Italy, February 21, 2021. REUTERS/Antonio Parrinello

Streams of red hot lava flow as Mount Etna, Europe's most active volcano, leaps into action, seen from Zafferana Etnea, Italy, February 21, 2021. REUTERS/Antonio Parrinello