San Francisco

San Francisco, California, USA

San Francisco is based on the west coast of the United States, at the arctic tip of the San Francisco Peninsula, within its boundary counting the Pacific Ocean and large areas of the San Francisco Bay. Several beautiful archipelago - Alcatraz, Treasure Island and nearby Yerba Buena Island, as well as Alameda, Red Rock and Angel Island a small part - is part of the city. It also add the deserted island of Faralong, 27 miles (43 kilometers) seaward in the Pacific Ocean. The global part of the city is about a "seven-by-seven-mile square", and locals are commonly intimate with the shape of the city, admitting its total area, counting water, is nearly 232 square miles (600 square kilometers 2).

Cars drove down Lombard Street along the Russian hill. There are more than 50 hills within the city. Some area are named after the hills where they are located, counting Mount Nob, Portrero and Russia. Close to the city's geological center, southwest of the city center, is a series of less colonized hills. Twin Peaks is a pair of hills that form one of the apical points of the city, creating a place of overhanging and cliffs. San Francisco's big mountain, Mount Davidson, is 283 meters high and camouflaged with a 31-meter-high cross built in 1934. The area under authority is Soutrota, a large red-and-white radio and TV set communication tower.

The nearby San Andreas and Hayward faults are the cause of many earthquake activity, admitting no more absolutely passes over the city itself. The San Andreas fault caused shock in 1906 and 1989. Small shock occur from time to time. The threat of a major shock plays an big role in the advancement of urban infrastructure. The city has built an ancillary water supply system and has again enhanced its architecture codes, compelling facelift of old architecture and higher construction code for new ones. However, chiliad of less architecture remain accessible to shock damage. The U.S. Geological Survey has discharged a California shock budget to affect the accident of an shock in The State. San Francisco's bank has grown beyond its common limits. The entire block, such as Pier, Mission Bay, Hunter Point, and most of Thenbacadero, is based in a landfill. The island was built using clean cloth from the bay and cloth achieve by the Yerba Buena Tunnel over the island of Yerbabuena during the development of the Bay Bridge.

These lands are often ambiguous in earthquakes. Soil liquidification caused broad damage to the equity built there, as demonstrate by the marshy area during the Loma Prita shock in 1989. Most of the city's common waterways, such as Islais Creek and Mission Creek, have been reestablished and built, admitting the Utility Commission is seeing bid for dawn or the rebuilding of some streams.



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