The Japan Meteorological Agency raised the alert level for Mount Aso to three on a scale of five. Mount Aso in Kumamoto Prefecture erupted around 11:43 a.m. local time (3:30 a.m.). The Level 3 Volcanic Activity Alert was issued shortly after, urging those nearby not to approach the area.
The alert covers Aso Town, Takamori Town and Minami-Aso Village.
The pyroclastic flow triggered by the eruption traveled nearly a mile from the crater and the volcanic ash reached a height of about 3,500 meters.
According to initial reports, no one was injured. The eruption occurred in southwestern Japan. CCTV cameras captured rocks as they flew through the air
The agency warned people to stay away from the volcano and be on alert for the large ash.
In Tokyo, Cabinet Secretary-General Hirokazu Matsuno told reporters that no injuries have been reported so far and that local authorities are working to determine if there are still climbers on the mountain.
Ash from one of the 1,592-meter mountain peaks will be detected in nearby towns until late afternoon Wednesday, the agency said.
Japan is located on the Pacific “Ring of Fire”. Many earthquakes and volcanic eruptions in the world are recorded in this region.
In 2014, Japan saw around 63 people die after one of Japan’s deadliest eruptions in nearly a century.
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At the same time, more than 20 ships that sank during World War II were lifted from the ocean floor after tremors on one of Japan’s most dangerous volcanoes, Mount Suribachi.
Satellite photos from the Japanese newspaper All Nippon News show the remains of the carcasses of 24 Japanese transport ships captured by the US Navy in the latter part of the war.
They were moved to the western part of Iwo Jima to form a port, as the island did not have such facilities at the time.
The seabed began to rise due to the seismic activity of Mount Suribachi, especially on the western part of the island.