Unusual Characteristics
In the 1970s Etna erupted smoke rings, one of the first captured events of this type, which are extremely rare. This happened again in 2000.
Read more about this topic: Mount Etna
Famous quotes containing the word unusual:
“The sea is very old.
The sea is the face of Mary,
without miracles or rage
or unusual hope,
grown rough and wrinkled
with incurable age.”
—Anne Sexton (1928–1974)