A volcanic island that vanished in a powerful eruption in 1883, Krakatoa has been reborn. Though lava flows readily from the mountain—now just over 1,300 feet tall—tourists eagerly scurry up its slopes.
Where is Krakatoa hotspot?
Krakatoa, Indonesian Krakatau, volcano
on Rakata Island in the Sunda Strait between Java and Sumatra, Indonesia
. Its explosive eruption in 1883 was one of the most catastrophic in history.
Do volcanoes come from hotspot?
While most volcanoes
form along tectonic plate boundaries
, mantle plumes and hot spots lead to their development as well. … Because the hot spot is caused by mantle plumes that exist below the tectonic plates, as the plates move, the hot spot does not, and may create a chain of volcanoes on the Earth's surface.
Is Krakatoa a hotspot to a location of subduction?
Krakatau is
directly above the subduction zone of the Eurasian Plate
and the Indo-Australian Plate where the plate boundaries make a sharp change of direction, possibly resulting in an unusually weak crust in the region.
What volcano is situated over a hotspot?
Mount Kilauea
. A hot spot is a region deep within the Earth's mantle from which heat rises through the process of convection. This heat facilitates the melting of rock. The melted rock, known as magma, often pushes through cracks in the crust to form volcanoes.
What are 3 examples of hotspots?
In geology, the places known as hotspots or hot spots are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. Examples include
the Hawaii, Iceland and Yellowstone hotspots
.
What is the most famous hot spot?
Prominent world hotspots [54 k]
Although
Hawaii
is perhaps the best known hotspot, others are thought to exist beneath the oceans and continents. More than a hundred hotspots beneath the Earth's crust have been active during the past 10 million years.
Is Krakatoa a supervolcano?
Mount Vesuvius is not the only slumbering supervolcano. Krakatoa, or rather,
its child, is also bubbling away
.
What would happen if Yellowstone erupted?
If the supervolcano underneath Yellowstone National Park ever had another massive eruption, it
could spew ash for thousands of miles across the United States
, damaging buildings, smothering crops, and shutting down power plants. … In fact, it's even possible that Yellowstone might never have an eruption that large again.
What did Krakatoa destroy?
An enormous blast on the afternoon of August 26 destroyed the northern two-thirds of the island; as it plunged into the Sunda Strait, between the Java Sea and Indian Ocean, the gushing mountain generated a series of pyroclastic flows (fast-moving fluid bodies of molten gas, ash and rock) and monstrous
tsunamis
that …
Why do hotspots occur?
A hot spot is an intensely hot area in the mantle below Earth's crust. The
heat
that fuels the hot spot comes from very deep in the planet. This heat causes the mantle in that region to melt. The molten magma rises up and breaks through the crust to form a volcano.
What causes a hot spot?
Hot spots are often triggered by
scratching, licking, or chewing the affected area
. The resulting trauma to the skin causes inflammation and secondary bacterial infections. Unfortunately, this self-trauma only makes the area more itchy, which causes a self-perpetuating cycle of itching and scratching.
Where are hotspots found?
Hot spots are found
in the ocean, and on continents
. Often the hot spot creates a chain of volcanoes, as a plate moves across a relatively stationary mantle plume. The best example of a hot spot volcanic chain is the Hawaiian Islands.
How hotspots are formed?
Hotspots occur
when one of the Earth's plates moves over an unusually hot part of the Earth's mantle
. These hot areas are usually relatively stationary and result in large amounts of magma rising up, piercing a hole in the plate to form a volcano. As the plates move, a series of volcanoes can form.
What does hot spot mean?
Hotspot: A hotspot is
a physical location where people can access the Internet, typically using
Wi-Fi, via a wireless local area network (WLAN) with a router connected to an Internet service provider. … While many public hotspots offer free wireless access on an open network, others require payment.
