They must have been spectacular eruptions.
The spectacular eruption of Mount St. Helens on 18 May 1980 electrified scientists and the public.
Killeen nodded distantly, staring at a particularly spectacular eruption.
Giant is notable for its spectacular, but sporadic eruptions, as well as for its very large cone of geyserite, which stands about 12 feet tall.
Prayers were made to the fire goddess Pele, said to live in Kīlauea, to provide spectacular eruptions.
THEMIS has made three important discoveries about spectacular eruptions of Northern Lights called "substorms" and the source of their power.
Everyone did have memories of Garben's spectacular eruption, seen at a safe enough distance to be clear of the pyroclastic debris.
The most obvious manifestation of volcanic activity comes from the infrequent but spectacular eruption of volcanoes on land.
Vice-President Richard Nixon's tour of South America in 1958 prompted a spectacular eruption of anti-Americanism.
The ease with which the dissolved high-pressure gases can escape from Hawaiian magmas leads to some very spectacular eruptions.