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What is the caldera of santorini?

The caldera of Santorini is the gulf surrounded by the roughly crescent-shaped island. This caldera formed when the island underwent a cataclysmic volcanic eruption between 1500 and 1700 BC. The eruption drained so much magma from the chamber beneath Santorini that most of the island collapsed into the space left behind and disappeared beneath the sea.


What is the hole called that is caused by the explosion or collapse of the centre of a volcano?

The hole that is formed by the eruption or collapse of the central vent of a volcano is called a caldera. A caldera is typically much larger in size compared to the original volcanic crater and can be several kilometers in diameter.


What is a caldera how is it hot?

A caldera is a large depression in the ground that forms when a volcano produces a very large eruption. So much magma is drained from below that the volcano collapses into the space left behind. A caldera that is erupting or has just erupted may contain hot ash, lava, or cinders from the eruption. Others may have hot springs as water is heated by hot rocks below ground. Otherwise you will not find any abnormal temperatures in a caldera.


How much overdue is the super volcano eruption in Yellowstone national park?

The Yellowstone caldera is not "overdue" for an eruption. You may have heard that the Yellowstone Caldera erupts regularly every 600,000 years and the last major eruption was 640,000 years ago. In reality the caldera does not erupt regularly and as gone as long as 800,000 years without a major eruption.


What is the most destructive Yellowstone eruption?

It is impossible to know exactly how much "destruction" occurred in any eruption that has taken place in the Yellowstone Caldera, but the eruption with the largest volume of lava expulsion took place about 1.2 million years ago.


When was Yellowstone biggest eruption?

2.1 million years ago, an eruption near present-day Yellowstone ejected about 2500 cubic kilometers of material, and created the Island Park Caldera. This is not much less than the largest measured eruption in history, the 2800 km^3 eruption of Mount Toba, about 74,000 years ago.


When did Lake Taupo from?

Lake Taupo, or the depression it formed in, formed about 26,500 years ago as as a result of the eruption of a supervolcano. The eruption drained much of the magma chamber beneath the area, causing the ground to collapse into the space left behind, forming a caldera.


A volcano that appears to be a large sunken depression is a?

A caldera is the name for a large sunken depression on a volcano.


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.


Why in 1883 did much of island Krakatoa disappear into the sea?

Krakatoa was a volcanic island. In 1883 that volcano produced a colossal eruption. This eruption drained about 10 cubic kilometers of magma from the magma chamber. The island collapsed into the space left behind, forming a depression called a caldera.


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 happen to create a caldera?

Calderas form during massive explosve volcanic eruptions. In such eruptions so much material is expelled that it leaves a large empty space under the volcano. The volcano then collapses into this space, forming a giant crater.