Madagascar's volcanoes have not erupted in 80 million years
Madagascar Earthquakes and Volcanoes
Madagascar's volcanoes have not erupted in 80 million years however Madagascar experiences many earthquakes every year.Madagascar is geologically complex. Madagascar was originally part of the ancient supercontinent Gondwana, or Gondwanaland and was formed in two major steps. Madagascar west coast was formed when Africa broke off from the supercontinent Gondwana around 165 million years ago.
The thinned crust on the west coast sagged and the dips filled with sediments, forming deep basins of sedimentary rocks. Then, about 90 million years ago, when the mini-continent migrated, brief but voluminous eruptions covered the island in lava. Madagascar finally broke off from India about 88 million years ago.
Volcanoes of Madagascar
A volcano is an opening in the Earth's surface from which gas, hot magma and ash can escape from deep within the Earth.
Madagascar Volcanoes |
|
Name |
Height |
Ankaratra Field |
8,674 feet tall |
Ankaizina |
9,442 feet tall |
Itasy Volcanic Field |
5,905 feet tall |
Ambre-Bobaomby |
4,839 feet tall |
Nosy-Be |
702 feet tall |
Earthquakes in Madagascar
Registered Earthquakes in Madagascar in the past 10 years |
5.5 magnitude Betafo, Vakinankaratra, Madagascar |
4.8 magnitude Antalaha, Sava, Madagascar |
5.3 magnitude Anakao, Atsimo-Andrefana, Madagascar |
4.2 magnitude Amparafaravola, Alaotra Mangoro, Madagascar |
4.5 magnitude Maroantsetra, Analanjirofo, Madagascar |
4.1 magnitude Maevatanana, Betsiboka, Madagascar |
4.3 magnitude Morondava, Menabe, Madagascar |
3.6 magnitude Ampanihy, Atsimo-Andrefana, Madagascar |
Madagascar city of Ambositra |
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