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Is a summit eruption like an explosive eruption?
A summit eruption can involve explosive activity, but not always. Summit eruptions can also involve effusive lava flows or steady emissions of ash and gas. The specific type of eruption depends on factors such as the magma's composition, gas content, and the volcano's plumbing system.
What year did mount hellan erupted?
Mount Helens erupted on May 18, 1980. This volcanic eruption was one of the most significant in U.S. history, resulting in substantial geological and ecological changes in the surrounding area. The eruption was preceded by a two-month series of earthquakes and steam-venting episodes and ultimately led to a massive ash cloud and the destruction of the mountain's summit.
Why do volcanoes sometimes get lower?
In an explosive eruption, the summit may be blasted away. In large eruptions, so much magma may be erupted that a volcano can collapse into the space left behind, leaving a caldera.
What is a summit crater?
A summit crater is a depression at the top of a volcano, usually caused by an eruption that removes material from the peak. It can contain a lava dome, a lake, or remain empty. Summit craters can be active sites for volcanic activity.
What do you call it after it has erupted?
After a volcano has erupted, the resulting depression at the summit is known as a caldera.
When Mauna Loa erupted in1984 a river of lava flowed from its summit Most of the material that came from that eruption would be what?
pahoehoe lava, aa lava
Is a summit eruption like an explosive eruption?
A summit eruption can involve explosive activity, but not always. Summit eruptions can also involve effusive lava flows or steady emissions of ash and gas. The specific type of eruption depends on factors such as the magma's composition, gas content, and the volcano's plumbing system.
What was the height of nevado del ruiz before it erupted?
It was about 17,500 feet before the eruption and pretty much the same after. The 1985 eruption, while extremely deadly, was relatively small and did not affect the summit much beyond the melting of glaciers.
Why do volcanoes get lower?
In an explosive eruption, the summit may be blasted away. In large eruptions, so much magma may be erupted that a volcano can collapse into the space left behind, leaving a caldera.
What year did mount hellan erupted?
Mount Helens erupted on May 18, 1980. This volcanic eruption was one of the most significant in U.S. history, resulting in substantial geological and ecological changes in the surrounding area. The eruption was preceded by a two-month series of earthquakes and steam-venting episodes and ultimately led to a massive ash cloud and the destruction of the mountain's summit.
Why do volcanoes sometimes get lower?
In an explosive eruption, the summit may be blasted away. In large eruptions, so much magma may be erupted that a volcano can collapse into the space left behind, leaving a caldera.
What is a summit crater?
A summit crater is a depression at the top of a volcano, usually caused by an eruption that removes material from the peak. It can contain a lava dome, a lake, or remain empty. Summit craters can be active sites for volcanic activity.
What do you call it after it has erupted?
After a volcano has erupted, the resulting depression at the summit is known as a caldera.
Where has mauna loa erupted beforehnxfgmjhcydjm bhydt?
not many countries but 4 were summit
How tall was mount saint helens before it erupted?
Mount St. Helens stood at approximately 9,677 feet (2,950 meters) above sea level before its catastrophic eruption on May 18, 1980. The eruption caused the mountain's summit height to decrease by about 1,300 feet (396 meters).
How many Eruptions has Mount Mazama had?
Mount Mazama has had one major eruption, which occurred around 7,700 years ago and led to the collapse of the volcano's summit, forming what is now known as Crater Lake in Oregon, USA.
What is a eruption from the side of a volcanano?
An eruption from the side of a volcano, often referred to as a flank eruption, occurs when magma escapes through a fissure or vent on the side of the volcano rather than from the summit. This type of eruption can produce lava flows, ash, and pyroclastic material, potentially affecting areas adjacent to the volcano. Flank eruptions can be less explosive than summit eruptions but can still pose significant hazards to nearby communities and ecosystems. Such eruptions are commonly associated with shield volcanoes and stratovolcanoes.
