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RMS Releases Global Tsunami Scenario Catalog
The new catalog is the first to provide global coverage of tsunami risk
NEWARK, Calif. -
February 03, 2015 -
RMS, the world's leading catastrophe modeling
firm, today announced that it has released its RMS® Global
Tsunami Scenario Catalog. The catalog, which is the first of its kind in the
industry, provides the most comprehensive global coverage of potential tsunami
events on major subduction zones around the world. Insurers and reinsurers who
write business along susceptible coastlines can use the Global Tsunami Scenario
Catalog to assess
their potential tsunami losses in regions of high exposure concentrations to support pricing, underwriting and capital allocation for their tsunami risk.
“The Global Tsunami Scenario
Catalog helps companies to deepen their understanding of global tsunami-related
inundation risk by
highlighting where these extremely catastrophic events can occur and the
multiple coastlines that could be impacted,” said Dr Renee Lee, tsunami expert and senior
product manager at RMS. “Tsunami events have the potential to be highly
catastrophic, and until recently, the industry has struggled to adequately
assess this previously non-modeled and complex risk.”
Tsunami Scenario Catalog includes close to 30 high-resolution tsunami inundation footprints generated
from magnitude 8.9 to 9.6 mega-thrust
earthquakes on subduction zone plate boundaries worldwide. The catalog includes potential tsunami scenarios
that are not within the historical record, in addition to scenarios based on significant
historical tsunami events. Each footprint provides the maximum
inundation depth and extent for the impacted multi-country coastlines so that
users can estimate the physical damage to local building stock.
“To minimize the losses and
operational impacts caused by large tsunami events, underwriters and risk
managers need the ability to understand the risk and then quantify the
potential damage to individual locations,” said Lee. “The footprints
provide the highest resolution available in combination with a numerically
robust method of evaluating
tsunami risk that exactly
conserves the mass, momentum and energy of the tsunami to provide a more accurate
prediction of the tsunami extent and inundation. ”
The RMS tsunami
catalog was modeled taking into consideration the entire tsunami lifecycle, from
initial wave generation, to deep ocean wave propagation and coastal inundation.
The tsunami modeling approach was validated in both near-field and far-field
experiments, using the tsunami water heights of five of the six largest
magnitude earthquakes since 1900, including the 2011 Tohoku, Japan, 1964
Alaska, 1960 Valdivia, Chile, 2010 Maule, Chile and 2004 Indian Ocean events.
inundation was modeled on high-resolution integrated bathymetric-topographic digital
elevation grids, taking into consideration variable land friction to accurately
capture the extent and maximum inundation depth of water on land. “In the
near-field, coastal deformation following a tsunamigenic event can significantly
influence the inundation profile at the coastline,” said Lee. “This coastal
deformation was captured within the model to account for post-event subsidence
RMS models and software help financial institutions and public agencies evaluate and manage catastrophe risks throughout the world, promoting resilient societies and a sustainable global economy.
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