Japan

	Typhoon
	Earthquake

Japan Typhoon

Japan is one of the most complex areas of the world for modeling tropical cyclone (typhoon) risk. The RMS® Japan Typhoon Model addresses the challenges of Japan through a combination of innovative modeling methodologies, new historical information, and extensive high resolution geophysical data. Incorporating over five years of research in cooperation with local experts, the model defines a new standard for quantifying typhoon risk in Japan.

The most damging storm to strike Japan in recent years was Typhoon Mireille (#19) in 1991. Mireille delivered windspeed gusts in excess of 130 miles per hour, caused insured property losses of ¥497 billion (approximately US$3.8 billion), and today remains the largest single historical insured loss event in Japan.

Model Highlights

	Japan-specific directional windfield model
	Ward-level surface roughness derived from high resolution satellite imagery
	25 distinct building classes and 3 height ranges
	Regional damage curves to reflect differences in vulnerability
	Building inventory databases capturing mix by prefecture, line of business, height, and year of construction
	Financial modeling of "franchise" deductibles

Geographic Scope

All of Japan

Exposure Data Resolution

Typhoon risk can be analyzed at Ward, Prefecture, or CRESTA Zone resolution.

Japan Earthquake

The RMS® Japan Earthquake Model represents the state-of-the-art for analyzing earthquake risk throughout Japan. Developed in collaboration with Oyo Corporation, the leading Japanese geotechnical consultancy and RMS' joint venture partner in Japan, this model was designed to provide robust analytical capabilities for risks ranging from individual properties to reinsurance portfolios. The Japan Earthquake model is used by a diverse group of RMS clients around the world, including individual corporations, local Japanese insurers, multinational insurers, global reinsurers, and capital markets constituents.

Model Highlights

	Developed in collaboration with Oyo Corporation and other leading scientific and academic experts in Japan
	Reflects the very latest Japanese research on earthquake activity and individual fault characteristics
	Utilizes time-dependent modeling to estimate earthquake occurrence probabilities
	Incorporates extensive information on building performance gathered following the 1995 Kobe Earthquake
	Distinguishes risk across a comprehensive range of Japan-specific building types
	Models losses from ground shaking and fire following as well as losses to EFEI policies
	Explicitly accounts for differences between proportional and first-loss policies

Geographic Scope

All of Japan

Exposure Data Resolution

Earthquake risk can be analyzed at Chome resolution in Tokyo and at Ward, Prefecture, or CRESTA Zone resolution throughout the country.