Volcanoes on 'Ring of Fire' remind Asia of its seismic peril

Posted: Updated:
(Kyodo, Vanuatu Meteorological and GeoHazards Department via AP). In this combination of photos, from left to right: Shinmoedake volcano in southwestern Japan on Oct. 12, 2017; Mount Agung in Bali on Oct. 8, 2017; Manaro volcano on Vanuatu on Oct. 1, 2... (Kyodo, Vanuatu Meteorological and GeoHazards Department via AP). In this combination of photos, from left to right: Shinmoedake volcano in southwestern Japan on Oct. 12, 2017; Mount Agung in Bali on Oct. 8, 2017; Manaro volcano on Vanuatu on Oct. 1, 2...
(Tomoaki Ito/Kyodo News via AP). In this Thursday, Oct. 12, 2017, photo, volcanic smoke rises from the Shinmoedake volcano after its eruption in the border of Kagoshima and Miyazaki prefectures, southwestern Japan. The horse shoe shaped string of activ... (Tomoaki Ito/Kyodo News via AP). In this Thursday, Oct. 12, 2017, photo, volcanic smoke rises from the Shinmoedake volcano after its eruption in the border of Kagoshima and Miyazaki prefectures, southwestern Japan. The horse shoe shaped string of activ...
(AP Photo/Firdia Lisnawati, File). In this Oct. 8, 2017, file photo, children play at a beach with Mount Agung volcano seen in the background during sunset in Karangasem, Bali, Indonesia. The horse shoe shaped string of active volcanos bounding the Pac... (AP Photo/Firdia Lisnawati, File). In this Oct. 8, 2017, file photo, children play at a beach with Mount Agung volcano seen in the background during sunset in Karangasem, Bali, Indonesia. The horse shoe shaped string of active volcanos bounding the Pac...
(Brad Scott/GeoHazards Divison, VMGD via AP, File). FILE - This Oct. 1, 2017, file photo provided by GeoHazards Division, Vanuatu Meteorological and GeoHazards Department, shows an aerial view of the volcanic cone that has formed in Lake Vui near the s... (Brad Scott/GeoHazards Divison, VMGD via AP, File). FILE - This Oct. 1, 2017, file photo provided by GeoHazards Division, Vanuatu Meteorological and GeoHazards Department, shows an aerial view of the volcanic cone that has formed in Lake Vui near the s...

By The Associated Press

The string of active volcanoes around the Pacific Ocean has lived up to its "Ring of Fire" name lately, sparking mass evacuations in Indonesia and Vanuatu and unsettling part of southwestern Japan. The 450 or so volcanoes that make up the ring outline where the massive Pacific Plate grinds against other plates that form the Earth's crust, creating a 40,000-kilometer (25,000-mile) -long zone prone to earthquakes and other seismic upheaval.

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JAPAN

The Shinmoedake volcano in southwestern Japan started erupting Wednesday for the first time in about six years. An ash plume rose 1,700 meters (5,580 feet) from the crater Thursday and ash fell on cities and towns in Miyazaki prefecture. Japanese broadcaster TBS showed students wearing helmets and masks on their way to school at the foot of Shinmoedake. The Japan Meteorological Agency is warning that hot ash and gas clouds known as pyroclastic flows could reach 2 kilometers (1 mile) from the crater, and ash and volcanic rocks are a risk over a wider area depending on wind and elevation. It raised the volcanic alert level from 2 to 3 on a scale of 5. Level 3 warns people to not approach the volcano.

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BALI

More than 140,000 people fled Mount Agung on the Indonesian resort island of Bali after its alert status was raised to the highest level on Sept. 22. Hundreds of tremors daily from the mountain indicate magma is rising inside it, prompting authorities to warn a powerful eruption is possible. The volcano spewed lava and deadly fast-moving clouds of boiling hot ash, gas and rocks when it last erupted in 1963, killing more than 1,100 people. A new eruption is likely to kill fewer people because officials have imposed a large no-go zone around the crater but it could paralyze tourism, which many Balinese rely on for their livelihoods. Indonesia has more than one tenth of the world's active volcanoes and another two are currently erupting. Sinabung in northern Sumatra is shooting plumes of ash high into the atmosphere nearly daily, and Dukono in the Maluku island chain is also periodically erupting.

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VANUATU

The entire population of a Pacific island was evacuated in the space of a few days in late September and early October to escape the belching Manaro volcano. The 11,000 residents of Ambae island were moved by every boat available to other islands in Vanuatu, a Pacific archipelago nation, where they're living in schools, churches and tents. Officials have since downgraded the volcano's danger level but say the population must wait at least two more weeks to return. The island's water supply and crops have been affected by volcanic ash and acid rain but most villages were spared major damage. Previous eruptions of the volcano have lasted a month to six weeks.

Copyright 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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