Flank eruption - Wikipedia
A flank eruption is a volcanic eruption which occurs on the flanks of a volcano, instead of at its summit. Such eruptions occur when the conduit connecting the summit to the magma chamber below is blocked, forcing the magma to move laterally.
Multi-stage volcanic island flank collapses with coeval …
2018年1月18日 · Volcanic flank collapses and explosive eruptions are among the largest and most destructive processes on Earth. Events at Mount St. Helens in May 1980 demonstrated how a relatively small (<5...
Multi-stage volcanic island flank collapses with coeval explosive ...
2018年1月18日 · Volcanic flank collapses and explosive eruptions are among the largest and most destructive processes on Earth. Events at Mount St. Helens in May 1980 demonstrated how a relatively small (<5 km 3 ) flank collapse on a terrestrial volcano could immediately precede a devastating eruption.
Etna: Flank eruptions - ITALY'S VOLCANOES
Mount Etna erupts both from the summit craters and from vents away from the summit craters, which are generally considered flank vents. It has been correctly observed that some activity on the flanks appears to be closely related to the summit craters, and …
What makes flank eruptions? The 2001 Etna eruption and its
2003年3月6日 · Peripheral eruptions (flank eruptions independent from the summit conduit) are very rare at Etna and occurred in 1974 and 2001 only. The 2001 eruption showed both a summit-lateral eruption, feeding two radial dikes, and a peripheral …
The 1981 NNW flank eruption - ITALY'S VOLCANOES
One of Etna's most dramatic and destructive eruptions of the 20th century occurred between 17 and 23 March 1981 on the north-northwestern flank of the volcano. The beautiful town of Randazzo with its medieval center narrowly excaped destruction.
Volcano Watch — The rise and fall of lava lakes
2021年4月29日 · Rising lake levels preceded large flank eruptions in 1977 and 2002 at Nyiragongo. The 1977 eruption produced unusually fast lava flows, killing scores of people. Lava flows from the 2002 eruption covered a large portion of the city of Goma, leaving 120,000 people homeless and displacing many more.
flank eruption | Encyclopedia.com
flank eruption The release of lava and pyroclastic material from a source on the slopes of a volcano, away from its primary central vent or fissure-vent area. The location of a flank eruption is often controlled by local inflation stresses.
Chronology and complex volcanic processes during the 2002–2003 flank …
2005年2月2日 · In this paper we present an account of the eruption based essentially on information derived from thermal images and visual observations collected throughout the eruption.
We show that the eruption was most likely triggered by deep tectonic fracturing that allowed a dike-like intrusion to propagate in 9 days from 11 km depth up to the surface, bypassing the central conduits.