Extreme Storms in 20062007 on Shikotan Island
and Their Impact on the Coastal Relief and Deposits

L. A. Ganzei^a, N. G. Razzhigaeva^a, A. A. Harlamov^b, and T. N. Ivel’skaya^c

^a Pacific Institute of Geography, Far East Division, Russian Academy of Sciences, Vladivostok, Russia

^b Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia

^c Tsunami Center of the Sakhalin Administration of Hydrometeorology and Monitoring of the Environment,

Rosgidromet, Yuzhno-Sakhalinsk, Russia

E-mail: harl@ocean.ru

Received June 11, 2008; in final form, October 29, 2008

Abstract—This paper describes the results of investigations of the consequences of the storms on the Pacific
coast of Shikotan Island that occurred on October 7–10, 2006 and January 6–8, 2007. These storms and their
impact on the coastal zone can be considered as extreme events for the last 40–50 years. The heights and flood-
ing area of the storm surges within bay coasts of different types were measured. The coastal relief’s changes
are described. During the storms, a cover of deposits was formed having a size of up to 30 m outside the beach
zone and up to 52 m in the near-mouth zones. The grain-size composition of the storm deposits is analyzed and
their difference from other coastal facies, including tsunami sands, are established.

DOI: 10.1134/S0001437010030112

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