July 20th, 2011

Update: Typhoon Ma-on

Posted at 9:33 AM ET

maon2-smallTyphoon Ma-on made landfall in Tokushima Prefecture on the western main island of Shikoku on July 19 as a strong tropical storm before re-intensifying into a category 1 typhoon as it brushed southern Honshu, according to the Joint Typhoon Warning Center (JTWC). Wind gusts of around 100 mph (160 kmph) were reported and rainfall accumulations of up to 120 centimeters (47 inches) prompted authorities to warn of possible landslides and floods. Following landfall, Ma-on started to weaken and move in an easterly direction that is expected to see the storm curve away from southern Honshu into the open waters.

 According to reports, 55 people in 16 western prefectures were injured by the severe weather associated with Ma-on. Around 11,000 households lost power while flooding was reported in the prefectures of Hyogo, Kochi and Shiga. All forms of transportation were disrupted as the storm’s strong winds and heavy rain prompted the cancellation of more than 120 flights and around 100 train services. Some sections of main roads, including the Tomei and Chuo motorways, were temporarily closed due to heavy rain or high waves.


Hazard data illustrated in the CAT-i map was taken from i-aXs®, Guy Carpenter’s web-based risk management platform. i-aXs users can view impacted areas on any map as well as see how their portfolios were affected. Please contact your broker or GC Analytics (SM) representative for assistance or go to www.i-axs.info for further information.

Offshore, product shipments were temporarily suspended at nine refinery plants in western Japan as Ma-on approached the Japanese coastline. However, no serious damage was reported and the loading of oil products has since resumed after the storm passed the region.

According to EQECAT, Typhoon Ma-on is likely to have caused significant rain-induced flooding damage to agriculture and property. EQECAT added that the insured losses from Ma-on are expected be less than USD250 million.

Sources: Joint Typhoon Warning Center, WSI, Agence France Presse, Platts Commodity News, Kyodo News, Reuters News, Xinhua News Agency

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Guy Carpenter publishes CAT-i reports for major natural catastrophes worldwide. These reports cover catastrophes including worldwide tropical cyclones, earthquakes, major UK and European floods and any other natural event that is likely to incur a significant loss to the (re)insurance industry. Please email CAT.i@guycarp.com if you wish to be added to the free email distribution list.

Guy Carpenter compiles RISK-i reports for major technological or man-made events worldwide. These reports cover risks to property, transport and life including explosions, fires, crashes, engineering disasters and terrorist attacks that are likely to incur a significant loss to the (re)insurance industry. Please email RISK.i@guycarp.com if you wish to be added to the free email distribution list.

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