What type of plate boundary formed the Indonesian islands?
Indonesian archipelago was formed due to convergence between Sunda oceanic plate (part of the Eurasian plate) and Indo-Australian plate whereas Philippine archipelago was formed due to convergence between Sunda oceanic plate and Philippine Sea plate. In ocean-ocean convergence, two oceanic plates converge or collide.
How was Indonesia islands formed?
The Indonesian archipel- ago formed over the past 300 million years by reassembly of fragments rifted from the Gondwana supercontinent that arrived at the Eurasian subduction margin. The present-day geology of Indonesia is broadly the result of Cenozoic subduction and collision at this margin.
Is Indonesia on a convergent plate boundary?
Weak Tectono-Magmatic Relationships along an Obliquely Convergent Plate Boundary: Sumatra, Indonesia. The tectono-magmatic relationships along obliquely convergent plate boundaries, where strain partitioning promotes strike-slip structures along the volcanic arc, are poorly known.
Which type of plate movement creates islands?
The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary. When two plates are moving away from each other, we call this a divergent plate boundary.
What are the two types of tectonic plates?
The two types of tectonic plates are continental and oceanic tectonic plates.
Why do earthquakes occur in Indonesia?
Indonesia is prone to earthquakes because it lies on the so-called Ring of Fire – a line of frequent quakes and volcanic eruptions on the Pacific rim. … The Indian Ocean tsunami of 2004 killed 170,000 people on the Indonesian island of Sumatra after a quake of magnitude 9.1.
What is Indonesia known for?
Nowadays, Indonesia is famous for its diverse and multicultural islands, from deeply religious Aceh in the north; to the country’s center of government in Java; to the tropical paradise of Bali; and all the way down to the province of Papua on the border with independent Papua New Guinea.
Is Indonesia on a fault line?
The Indonesian island of Sumatra is located in a highly seismic area of the world. In addition to the subduction zone off the west coast of the island, Sumatra also has a large strike-slip fault, the Great Sumatran Fault also known as Semangko Fault, running the entire length of the island.
Which plate boundary is the feature goes best with Indonesia?
Indonesia sits along the “Pacific Ring of Fire” where several tectonic plates collide and many volcanic eruptions and earthquakes occur. Some of these earthquakes are very large, such as the magnitude 9.1 quake off the west coast of Sumatra that generated the 2004 Indian Ocean tsunami.
How often do earthquakes occur in Indonesia?
In 2004 a very large earthquake in Sumatra, Indonesia measuring around magnitude 9.3, caused a tsunami that caused vast amounts of damage. Large earthquakes over a magnitude 8 are called “great earthquakes”. Great earthquakes happen on average once every 1.5 years.