Top 30 unique islands in the world (P.27) Miyake-jima: The island required its residents to carry gas masks

13-08-2021

(WorldKings.org) After the eruption in 2005, there has been a constant flow of sulfur dioxide gas coming from Mount Oyama. Residents of the island were once required to carry gas masks with them at all times. However, masks have not been needed for years. Alarms go off if there is a dramatic increase in the levels of toxic gases in the air.

Miyake-jima is an inhabited volcanic island in the Izu archipelago in the Philippine Sea approximately 180 kilometers southeast of Tokyo, Japan. As with the other islands in the Izu Island group, Miyake-jima forms part of the Fuji-Hakone-Izu National Park.


The island is a stratovolcano with a granitic composite cone, dating from the late Pleistocene period, between 10,000 and 15,000 years ago. The island has a roughly circular coastline, 38.3 kilometers in length, with an average diameter of eight kilometers. Over the past 500 years, it has erupted 13 times, including five times since the start of the Meiji period. A lava flow in 1940 killed 11 people, and other eruptions occurred in 1962 and 1983.


On July 14, 2000, Mount Oyama began another series of eruptions, and by September, the island was completely evacuated. After a four-year period of volcanic emissions, residents were allowed to return permanently on February 1, 2005. 


After the eruption in 2005, there has been a constant flow of sulfur dioxide gas coming from Mount Oyama. Residents of the island were once required to carry gas masks with them at all times. However, masks have not been needed for years. Alarms go off if there is a dramatic increase in the levels of toxic gases in the air. Volcanic gas emissions from this volcano are measured by a Multi-Component Gas Analyzer System, which detects pre-eruptive degassing of rising magmas, improving prediction of volcanic activity.

According to wikipedia.org 


Brian (Collect & Edit) - WORLDKINGS (Source of photos : internet )

 

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