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The 1886 Charleston earthquake (magnitude 6.6 to 7.3) was felt in DC. The strongest earthquake in Virginia happened in 1897 and was felt in the District. An earthquake in 1925 in Canada, estimated about magnitude 7, was felt over 2 million square miles (5.18 million km 2). Another 6.2 earthquake in 1935 caused damage in New York and shook ...
On July 16, 1790, the Residence Act provided for a new permanent capital to be located on the Potomac River, the exact area to be selected by President Washington.As permitted by the U.S. Constitution, the initial shape of the federal district was a square, measuring 10 miles (16 km) on each side, totaling 100 square miles (260 km 2).
Map of the boundary stones. The District of Columbia (initially, the Territory of Columbia) was originally specified to be a square 100 square miles (260 km 2) in area, with the axes between the corners of the square running north-south and east-west, The square had its southern corner at the southern tip of Jones Point in Alexandria, Virginia, at the confluence of the Potomac River and ...
Population density is defined as the population divided by land area. Data are from the US Census unless otherwise specified. Population data are for the year 2023 [2] and area data are for the year 2010. [3]
Rock Creek Park is a 1,754-acre (7.10 km 2) urban forest in Northwest Washington, which extends 9.3 miles (15.0 km) through a stream valley that bisects the city. Established in 1890, it is the country's fourth-oldest national park and is home to a variety of plant and animal species, including raccoon, deer, owls, and coyotes. [ 75 ]
The area given to District of Columbia, was originally 100 square miles (259 km 2) ceded by the states of Maryland and Virginia in accordance with the Residence Act; however, in 1846, the retrocession of the District of Columbia, meant that the area of 31 square miles (80 km 2) which was ceded by Virginia was returned, [1] leaving 69 square ...
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San Francisco is an extreme example: water makes up nearly 80% of its total area of 232 square miles (601 km 2). In many cases an incorporated place is geographically large because its municipal government has merged with the government of the surrounding county.