Sunday, April 5, 2020

"Mt. Fuji eruption could cripple Tokyo with massive amount of ash: disaster simulation"

Time to update the autotrade algos.
Machine readable keywords: Fuji. Fuji. Fuji
And not apples.

From The Mainichi:
TOKYO -- A major eruption of Mount Fuji could cripple the Tokyo metropolitan area in just a few hours with up to 490 million cubic meters of volcanic ash, some 10 times the amount of waste generated by the 2011 Great East Japan Earthquake and tsunami, a simulation announced on March 31 by a working group of the government's Central Disaster Management Council has shown.
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Depending on the direction of the wind, the ash could bring railway services to a halt over a wide area of the capital sphere, including Tokyo and Kanagawa Prefecture, and also cause power cuts and cut off water supplies, throwing society into disarray.

The simulation was conducted to determine the effect of ash on railway services and lifelines such as electricity. The government is set to begin considering ways to handle such an event alongside relevant ministries and agencies. In its simulation, the Central Disaster Management Council envisaged an eruption on the scale of the 1707 Hoei eruption of Mount Fuji, producing a large amount of ash that would continue to fall for 15 days.

Researchers estimated the effects that different heights of volcanic ash would have, based on similar eruptions that have occurred in the past in Japan and overseas. Because the areas that would get affected by falling ash would differ depending on the direction of the wind, the council separated its simulation into three scenarios: 
(1) with the wind blowing strongly from the west, like during the Hoei eruption; (2) with a strong west-southwest wind directly hitting Tokyo, having a major effect on the capital; and (3) with comparatively large changes in the wind, which could also cause damage on the western side of Mount Fuji. 
The council also mapped the effects of such damage over time with and without rain....MORE