California faces the
risk not just of devastating earthquakes but
also of a catastrophic storm that could tear at
the coasts, inundate the Central Valley and
cause four to five times as much economic damage
as a large quake, scientists and emergency

reports New York Time


SACRAMENTO, Calif. — For emergency planning purposes, scientists unveiled a hypothetical
California scenario that describes a storm that could produce up to 10 feet of
rain, cause extensive flooding (in many cases overwhelming the state’s
flood-protection system) and result in more than $300 billion in damage.


The "ARkStorm Scenario," prepared by the U.S. Geological Survey and released
at the ARkStorm Summit in Sacramento on Jan. 13 – 14, combines prehistoric
geologic flood history in California with modern flood mapping and
climate-change projections to produce a hypothetical, but plausible, scenario
aimed at preparing the emergency response community for this type of hazard.

Read Full Release at


What is the "ARkStorm Scenario"?



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