Is Krakatoa is cinder cone or composite volcano?
Krakatoa is a composite volcano. It is tall and conical with steep slopes and a small base area compared to shield volcanoes, with viscous lava, therefore resulting in explosive eruptions.
Krakatoa is properly names Krakatau or Anak-Krakatau. It is not a cinder volcano, it is classified as a caldera volcano. It has an extremely explosive past, with the formation of a 7 KM wide caldera in 416 AD, that destroyed the previous island, and again in 1883 AD. This volcano is one of the most destructive and unpredictable types of volcanoes out there. Cinder cones in contrast tend to erupt only once forming often times a small to moderate lava flow and ash fall, but do not erupt again as they do not seem to have a sustained or developed magma reservoir.
No. Krakatoa is a stratovolcano.
How big is the perimeter around Krakatoa?
813 m (2,670 ft)
For the source and more detailed information concerning your request, click under the related links section (Wikipedia) indicated directly below this answer section.
it is 813 metres tall
How did Krakatoa affect people around it?
I don't know if this might help but its worth a try :
--> The 1883 eruption ejected more than six cubic miles (25 cubic kilometres) of rock, ash, and pumice [1], and generated the loudest sound ever historically recorded by human beings - the cataclysmic explosion was distinctly heard as far away as Perth in Australia, and the island of Rodrigues near Mauritius. Atmospheric shock waves reverbrated around the world. Near Krakatoa, 165 villages were devastated, 36,000 people died and uncountable thousands were injured by the eruption, mostly in the tsunami which followed the biggest explosion.
The eruption destroyed two-thirds of the pre-existing island of Krakatoa. New eruptions at the volcano since 1927 have built a new island, called Anak Krakatau (son of Krakatoa.
Source from--> http://travel.mongabay.com/indonesia/
Hope this helps
wazie
Is krakatoka still erupting today?
No, Krakatoa's last significant eruption occurred in 1883. Since then, there have been smaller eruptions and volcanic activity, but it is not currently erupting.
Is mt st helens non-explosive or explosive?
Mount St. Helens is generally regarded as an explosive volcano, but like most stratovolcanoes, it can produce both explosive and non-explosive eruptions.
Can mud flows and lahars be prevented?
Mudflows and lahars can be prevented or greatly reduced by planting deep rooted vegetation in places they might occur.
Why did most of Krakatoa disappear into the sea in 1883?
The eruption of Krakatoa in 1883 was one of the most powerful in recorded history, causing a series of massive explosions that resulted in the collapse of the volcano's summit. This collapse caused a large portion of the island to slide into the sea, leading to the disappearance of much of Krakatoa.
How did Krakatoa affect the geosphere?
The eruption of Krakatoa in 1883 caused widespread destruction in the geosphere, with ash reaching the stratosphere and impacting global climate. The volcanic eruption also triggered tsunamis that affected the surrounding areas. The explosion was one of the most powerful in recorded history and caused significant changes in the landscape of the region.
Did mount Krakatoa erupt in 413 ad?
No, Mount Krakatoa did not erupt in 413 AD. The most famous eruption of Krakatoa occurred in 1883, which had catastrophic effects and is well-documented. There are no historical records or geological evidence indicating a significant eruption at Krakatoa in 413 AD.
What direction does the Krakatoa plates move?
The tectonic plates around Krakatoa, located in the Sunda Arc of Indonesia, primarily move in a northward and eastward direction due to the subduction of the Indo-Australian Plate beneath the Eurasian Plate. This movement contributes to volcanic activity in the region, including the eruptions of Krakatoa. Additionally, the complex interactions of the surrounding plates can lead to varying degrees of seismic activity. Overall, the area is characterized by significant tectonic dynamics.
Is Mount Krakatoa being monitored and by whom?
Yes, Mount Krakatoa is being monitored by various geological and meteorological agencies, primarily by Indonesia's Center for Volcanology and Geological Hazard Mitigation (PVMBG). They utilize seismic instruments, satellite imagery, and other technologies to track volcanic activity. Additionally, international organizations and researchers also observe Krakatoa due to its historical significance and potential hazards. Continuous monitoring helps ensure public safety and provides valuable data for volcanic research.
What can you learn from the Krakatoa eruption?
The eruption of Krakatoa in 1883 serves as a powerful reminder of the immense power of nature and its ability to impact global climate. It highlighted the importance of monitoring volcanic activity to predict and mitigate disaster risks. Additionally, the event underscored the interconnectedness of ecosystems and human societies, as the ash cloud resulted in significant atmospheric changes and affected weather patterns worldwide. Finally, the eruption emphasized the need for effective communication and preparedness in response to natural disasters.
What are the secondary effects of Krakatoa?
The eruption of Krakatoa in 1883 caused tsunamis that reached heights of up to 125 feet, resulting in widespread destruction along the coastlines of nearby islands. The volcanic ash and aerosols ejected into the atmosphere caused global cooling and intense sunsets that lasted for several years. The collapse of the caldera led to the formation of a new volcanic island known as Anak Krakatau.