Sendai (仙台市 Sendai-shi?) is the capital city of Miyagi Prefecture, Japan, and the largest city in the Tōhoku region, and the second largest city north of Tokyo. In 2010, the city had a population of one million, and was one of Japan's 20 designated cities. The city was founded in 1600 by the daimyo Date Masamune, and is nicknamed the City of Trees (杜の都 Mori no Miyako?); there are about 60 zelkova trees on Jōzenji Street (定禅寺通 Jōzenji dōri?) and Aoba Street (青葉通 Aoba dōri?). In the summer, the Sendai Tanabata Festival, the largest Tanabata festival in Japan, is held. In winter, the trees are decorated with thousands of lights for the Pageant of Starlight (光のページェント), lasting through most of December. On March 11, 2011, coastal areas of the city suffered catastrophic damage from a magnitude 9.0 offshore earthquake which triggered a destructive tsunami.