Japan Warns of Megaquake Threat

This is a Japan news story, published by MailOnline, that relates primarily to The Nankai Trough news.

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deadly earthquakes

MailOnline

•

Science

Japan issues warning over MEGAQUAKE that could kill 300,000 people

Summary

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78% Informative

Japan is particularly exposed to deadly earthquakes because it sits on a vast belt of seismic activity known as the Pacific Ring of Fire .

The Nankai Trough is a deep ocean trench formed by the boundary of two tectonic plates.

It is hit by a megaquake once every 100 to 200 years and could be even more devastating than the 2011 Tohoku earthquake.

New government estimates show this disaster would kill 300,000 in the worst-case scenario.

This includes 215,000 deaths caused by tsunami waves exceeding 30 m ( 98ft ) in some areas.

The Earth has fifteen tectonic plates that together have moulded the shape of the landscape we see around us today .

Earthquakes typically occur at the boundaries of plates, where one plate dips below another, thrusts another upward, or where plate edges scrape alongside each other.

The Earth is moving through the mantle and produces earthquakes when ancient faults or rifts far below the surface reactivate.

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