Wednesday, April 5, 2017

Landmarks and architecture

A. T. Stewart in 1870, 9th Street, Manhattan
Numerous buildings have a jagged façade, exemplified at Park Avenue and 57th Street in Midtown Manhattan
Broadway and the Theater District surrounding Times Square, Central Park, Chinatown, the Chrysler Building, Columbia University, the Empire State Building, the Flatiron Building, Fulton Center, Grand Central Station, Harlem, the High Line, Koreatown, Lincoln Center for the Performing Arts, Little Italy, Madison Square Garden, Museum Mile on Fifth Avenue, the New York Stock Exchange on Wall Street, New York University and the Washington Square Arch in Greenwich Village, One World Trade Center, Penn Station, the Port Authority Bus Terminal, Radio City Music Hall, Rockefeller Center, Stonewall Inn, Trump Tower, gateways to numerous iconic river-crossing bridges, and an emerging number of supertall skyscrapers, are all located on densely populated Manhattan Island; the Statue of Liberty rests on a pedestal on Liberty Island, an exclave of Manhattan. The borough has many energy-efficient green office buildings, such as the Hearst Tower, the rebuilt 7 World Trade Center,[165] and the Bank of America Tower—the first skyscraper designed to attain a Platinum LEED Certification.[166][167]

Architectural history

The skyscraper, which has shaped Manhattan's distinctive skyline, has been closely associated with New York City's identity since the end of the 19th century. From 1890 to 1973, the title of world's tallest building resided continually in Manhattan (with a gap between 1901 and 1908, when the title was held by Philadelphia City Hall), with nine different buildings holding the title.[168] The New York World Building on Park Row, was the first to take the title in 1890, standing 309 feet (94 m) until 1955, when it was demolished to construct a new ramp to the Brooklyn Bridge.[169] The nearby Park Row Building, with its 29 stories standing 391 feet (119 m) high took the title in 1899.[170] The 41-story Singer Building, constructed in 1908 as the headquarters of the eponymous sewing machine manufacturer, stood 612 feet (187 m) high until 1967, when it became the tallest building ever demolished.[171] The Metropolitan Life Insurance Company Tower, standing 700 feet (210 m) at the foot of Madison Avenue, wrested the title in 1909, with a tower reminiscent of St Mark's Campanile in Venice.[172] The Woolworth Building, and its distinctive Gothic architecture, took the title in 1913, topping off at 792 feet (241 m).[173] Structures such as the Equitable Building of 1915, which rises vertically forty stories from the sidewalk, prompted the passage of the 1916 Zoning Resolution, requiring new buildings to withdraw progressively at a defined angle from the street as they rose, in order to preserve a view of the sky at street level.
The Roaring Twenties saw a race to the sky, with three separate buildings pursuing the world's tallest title in the span of a year. As the stock market soared in the days before the Wall Street Crash of 1929, two developers publicly competed for the crown.[174] At 927 feet (283 m), 40 Wall Street, completed in May 1930 in only eleven months as the headquarters of the Bank of Manhattan, seemed to have secured the title.[175] At Lexington Avenue and 42nd Street, auto executive Walter Chrysler and his architect William Van Alen developed plans to build the structure's trademark 185-foot (56 m) spire in secret, pushing the Chrysler Building to 1,046 feet (319 m) and making it the tallest in the world when it was completed in 1929.[176] Both buildings were soon surpassed with the May 1931 completion of the 102-story Empire State Building with its Art Deco tower reaching 1,250 feet (380 m) at the top of the building. The 203-foot (62 m) high pinnacle was later added bringing the total height of the building to 1,453 ft (443 m).[177][178]
The former Twin Towers of the World Trade Center were located in Lower Manhattan. At 1,368 and 1,362 feet (417 and 415 m), the 110-story buildings were the world's tallest from 1972 until they were surpassed by the construction of the Willis Tower in 1974 (formerly known as the Sears Tower, located in Chicago).[179] One World Trade Center, a replacement for the Twin Towers of the World Trade Center, is currently the tallest building in the Western Hemisphere.[180]
In 1961, the Pennsylvania Railroad unveiled plans to tear down the old Penn Station and replace it with a new Madison Square Garden and office building complex. Organized protests were aimed at preserving the McKim, Mead & White-designed structure completed in 1910, widely considered a masterpiece of the Beaux-Arts style and one of the architectural jewels of New York City.[181] Despite these efforts, demolition of the structure began in October 1963. The loss of Penn Station—called "an act of irresponsible public vandalism" by historian Lewis Mumford—led directly to the enactment in 1965 of a local law establishing the New York City Landmarks Preservation Commission, which is responsible for preserving the "city's historic, aesthetic, and cultural heritage".[182] The historic preservation movement triggered by Penn Station's demise has been credited with the retention of some one million structures nationwide, including nearly 1,000 in New York City.[183]

Parkland

17.8% of the borough, a total of 2,686 acres (10.87 km2), is devoted to parkland. Almost 70% of Manhattan's space devoted to parks is located outside of Central Park, including 204 playgrounds, 251 Greenstreets, 371 basketball courts and many other amenities.[184]
Central Park is bordered on the north by West 110th Street, on the west by Eighth Avenue, on the south by West 59th Street, and on the east by Fifth Avenue. Along the park's borders, these streets are usually referred to as Central Park North, Central Park West, and Central Park South, respectively (Fifth Avenue retains its name along the eastern border). The park was designed by Frederick Law Olmsted and Calvert Vaux. The 843-acre (3.41 km2) park offers extensive walking tracks, two ice-skating rinks, a wildlife sanctuary, and grassy areas used for various sporting pursuits, as well as playgrounds for children. The park is a popular oasis for migrating birds, and thus is popular with bird watchers. The 6-mile (9.7 km) road circling the park is popular with joggers, bicyclists and inline skaters, especially on weekends and in the evenings after 7:00 pm, when automobile traffic is banned.[185] While much of the park looks natural, it is almost entirely landscaped and contains several artificial lakes. The construction of Central Park in the 1850s was one of the era's most massive public works projects. Some 20,000 workers crafted the topography to create the English-style pastoral landscape Olmsted and Vaux sought to create. Workers moved nearly 3,000,000 cubic yards (2,300,000 m3) of soil and planted more than 270,000 trees and shrubs.[186]
The African Burial Ground National Monument at Duane Street preserves a site containing the remains of over 400 Africans buried during the 17th and 18th centuries. The remains were found in 1991 during the construction of the Foley Square Federal Office Building.

Demographics

Historical population
Year Pop. ±%
1656 1,000 —    
1698 6,788 +578.8%
1711 10,538 +55.2%
1730 11,963 +13.5%
1731 8,628 −27.9%
1756 15,710 +82.1%
1773 21,876 +39.2%
1774 23,600 +7.9%
1782 29,363 +24.4%
1790 33,131 +12.8%
1800 60,489 +82.6%
1810 96,373 +59.3%
1820 123,706 +28.4%
1830 202,589 +63.8%
1840 312,710 +54.4%
1850 515,547 +64.9%
1860 813,669 +57.8%
1870 942,292 +15.8%
1880 1,164,674 +23.6%
1890 1,441,216 +23.7%
1900 1,850,093 +28.4%
1910 2,331,542 +26.0%
1920 2,284,103 −2.0%
1930 1,867,312 −18.2%
1940 1,889,924 +1.2%
1950 1,960,101 +3.7%
1960 1,698,281 −13.4%
1970 1,539,233 −9.4%
1980 1,428,285 −7.2%
1990 1,487,536 +4.1%
2000 1,537,195 +3.3%
2010 1,585,873 +3.2%
2015 1,644,518 +3.7%
Sources:[1][147][148]
Source:
U.S. Decennial Census[149]
[hide]Racial composition 2012[1] 1990[150] 1950[150] 1900[150]
White 65.2% 58.3% 79.4% 97.8%
 —Non-Hispanic 47.6% 48.9% n/a n/a
Black or African American 18.4% 22.0% 19.6% 2.0%
Hispanic or Latino (of any race) 25.8% 26.0% n/a n/a
Asian 12.0% 7.4% 0.8% 0.3%
At the 2010 Census, there were 1,585,873 people living in Manhattan, an increase of 3.2% since 2000. Since 2010, Manhattan's population was estimated by the Census Bureau to have increased 3.7% to 1,644,518 as of 2015, representing 19.3% of New York City's population and 8.3% of New York State's population.[1][151] As of the 2000 Census, the population density of New York County was 66,940 per square mile (25,846/km²), the highest population density of any county in the United States.[152] If 2012 census estimates were accurate, the population density then approximated 70,518 people per square mile (27,227/km²). In 1910, at the height of European immigration to New York, Manhattan's population density reached a peak of 101,548 people per square mile (39,208/km²).
According to 2012 Census estimates, 65.2% of the population was White, 18.4% Black or African American, 1.2% American Indian and Alaska Native, 12.0% Asian, and 3.1% of two or more races. 25.8% of Manhattan's population was of Hispanic or Latino origin, of any race. Manhattan has the second highest percentage of non-Hispanic Whites (48%) of New York City's boroughs, after Staten Island (64%).[1]
In 2006, the New York City Department of City Planning projected that Manhattan's population will increase by 289,000 people between 2000 and 2030, an increase of 18.8% over the period, second only to Staten Island, while the rest of the city is projected to grow by 12.7% over the same period. The school-age population was expected to grow 4.4% by 2030, in contrast to a small decline in the city as a whole. The elderly population was forecast to grow by 57.9%, with the borough adding 108,000 persons ages 65 and over, compared to 44.2% growth citywide.[153] However, these 2006 projections may have become outdated, as Lower Manhattan has been experiencing a baby boom, well above the overall birth rate in Manhattan, with the area south of Canal Street witnessing 1,086 births in 2010, 12% greater than 2009 and over twice the number born in 2001.[154] The Financial District alone has witnessed growth in its population to approximately 43,000 as of 2014, nearly double the 23,000 recorded at the 2000 Census.[155] The southern tip of Manhattan became the fastest growing part of New York City between 1990 and 2014.[156]
According to the 2009 American Community Survey,[157] the average household size was 2.11, and the average family size was 3.21. Approximately 59.4% of the population over the age of 25 have a bachelor's degree or higher. Approximately 27.0% of the population is foreign-born, and 61.7% of the population over the age of 5 speak only English at home. People of Irish ancestry make up 7.8% of the population, while Italian Americans make up 6.8% of the population. German Americans and Russian Americans make up 7.2% and 6.2% of the population respectively.[158]
In 2000, 56.4% of people living in Manhattan were White, 17.39% were Black, 14.14% were from other races, 9.40% were Asian, 0.5% were Native American, and 0.07% were Pacific Islander. 4.14% were from two or more races. 27.18% were Hispanic of any race.
There were 738,644 households. 25.2% were married couples living together, 12.6% had a female householder with no husband present, and 59.1% were non-families. 17.1% had children under the age of 18 living with them. 48% of all households were made up of individuals and 10.9% had someone living alone who was 65 years of age or older. The average household size was two and the average family size was 2.99.
Manhattan's population was spread out with 16.8% under the age of 18, 10.2% from 18 to 24, 38.3% from 25 to 44, 22.6% from 45 to 64, and 12.2% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 90.3 males. For every 100 females age 18 and over, there were 87.9 males.
Manhattan is one of the highest-income places in the United States with a population greater than one million. As of 2012, Manhattan's cost of living was the highest in the United States,[159] but the borough also contained the country's most profound level of income inequality.[160] Manhattan is also the United States county with the highest per capita income, being the sole county whose per capita income exceeded $100,000 in 2010.[161] In 2012, The New York Times reported that "the income gap in Manhattan, already wider than almost anywhere else in the country, rivaled disparities in sub-Saharan Africa. ... The wealthiest fifth of Manhattanites made more than 40 times what the lowest fifth reported, a widening gap (it was 38 times, the year before) surpassed by only a few developing countries".[162]

Religion

Manhattan is religiously diverse. In 2000, the largest religious affiliation was the Catholic Church, whose adherents constituted 564,505 persons (more than 36% of the population) and maintained 110 congregations. Jews comprised the second largest religious group, with 314,500 persons (20.5%) in 102 congregations. They were followed by Protestants, with 139,732 adherents (9.1%) and Muslims, with 37,078 (2.4%).[163]

Languages

As of 2010, 59.98% (902,267) of Manhattan residents, ages five and older, spoke only English at home, while 23.07% (347,033) spoke Spanish, 5.33% (80,240) Chinese, 2.03% (30,567) French, 0.78% (11,776) Japanese, 0.77% (11,517) Russian, 0.72% (10,788) Korean, 0.70% (10,496) German, 0.66% (9,868) Italian, 0.64% (9,555) Hebrew, and 0.48% (7,158) African languages as a main language. In total, 40.02% (602,058) of Manhattan's population, ages 5 and older, spoke a language other than English at home.[164]

Climate

Under the Köppen climate classification, using the 0 °C (32 °F) isotherm, New York City features a humid subtropical climate (Cfa), and is thus the northernmost major city on the North American continent with this categorization.[138][139] The suburbs to the immediate north and west lie in the transitional zone between humid subtropical and humid continental climates (Dfa).[138][139] The city averages 234 days with at least some sunshine annually, and averages 57% of possible sunshine annually,[140] accumulating 2,535 hours of sunshine per annum.[140] The city lies in the USDA 7b plant hardiness zone.[141]
Winters are cold and damp, and prevailing wind patterns that blow offshore minimize the moderating effects of the Atlantic Ocean; yet the Atlantic and the partial shielding from colder air by the Appalachians keep the city warmer in the winter than inland North American cities at similar or lesser latitudes such as Pittsburgh, Cincinnati, and Indianapolis. The daily mean temperature in January, the area's coldest month, is 32.6 °F (0.3 °C);[142] temperatures usually drop to 10 °F (−12 °C) several times per winter,[142][143] and reach 60 °F (16 °C) several days in the coldest winter month.[142] Spring and autumn are unpredictable and can range from chilly to warm, although they are usually mild with low humidity. Summers are typically warm to hot and humid, with a daily mean temperature of 76.5 °F (24.7 °C) in July.[142] Nighttime conditions are often exacerbated by the urban heat island phenomenon, while daytime temperatures exceed 90 °F (32 °C) on average of 17 days each summer[144] and in some years exceed 100 °F (38 °C). Extreme temperatures have ranged from −15 °F (−26 °C), recorded on February 9, 1934, up to 106 °F (41 °C) on July 9, 1936.[144]
Summer evening temperatures are elevated by the urban heat island effect, which causes heat absorbed during the day to be radiated back at night, raising temperatures by as much as 7 °F (4 °C) when winds are slow.[145]

[hide]Climate data for New York (Belvedere Castle, Central Park), 1981–2010 normals,[b] extremes 1869–present[c]
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 72
(22)
75
(24)
86
(30)
96
(36)
99
(37)
101
(38)
106
(41)
104
(40)
102
(39)
94
(34)
84
(29)
75
(24)
106
(41)
Mean maximum °F (°C) 59.6
(15.3)
60.7
(15.9)
71.5
(21.9)
83.0
(28.3)
88.0
(31.1)
92.3
(33.5)
95.4
(35.2)
93.7
(34.3)
88.5
(31.4)
78.8
(26)
71.3
(21.8)
62.2
(16.8)
97.0
(36.1)
Average high °F (°C) 38.3
(3.5)
41.6
(5.3)
49.7
(9.8)
61.2
(16.2)
70.8
(21.6)
79.3
(26.3)
84.1
(28.9)
82.6
(28.1)
75.2
(24)
63.8
(17.7)
53.8
(12.1)
43.0
(6.1)
62.0
(16.7)
Daily mean °F (°C) 32.6
(0.3)
35.3
(1.8)
42.5
(5.8)
53.0
(11.7)
62.4
(16.9)
71.4
(21.9)
76.5
(24.7)
75.2
(24)
68.0
(20)
56.9
(13.8)
47.7
(8.7)
37.5
(3.1)
55.0
(12.8)
Average low °F (°C) 26.9
(−2.8)
28.9
(−1.7)
35.2
(1.8)
44.8
(7.1)
54.0
(12.2)
63.6
(17.6)
68.8
(20.4)
67.8
(19.9)
60.8
(16)
50.0
(10)
41.6
(5.3)
32.0
(0)
47.9
(8.8)
Mean minimum °F (°C) 9.2
(−12.7)
12.8
(−10.7)
18.5
(−7.5)
32.3
(0.2)
43.5
(6.4)
52.9
(11.6)
60.3
(15.7)
58.8
(14.9)
48.6
(9.2)
38.0
(3.3)
27.7
(−2.4)
15.6
(−9.1)
7.0
(−13.9)
Record low °F (°C) −6
(−21)
−15
(−26)
3
(−16)
12
(−11)
32
(0)
44
(7)
52
(11)
50
(10)
39
(4)
28
(−2)
7
(−14)
−13
(−25)
−15
(−26)
Average precipitation inches (mm) 3.65
(92.7)
3.09
(78.5)
4.36
(110.7)
4.50
(114.3)
4.19
(106.4)
4.41
(112)
4.60
(116.8)
4.44
(112.8)
4.28
(108.7)
4.40
(111.8)
4.02
(102.1)
4.00
(101.6)
49.94
(1,268.5)
Average snowfall inches (cm) 7.0
(17.8)
9.2
(23.4)
3.9
(9.9)
0.6
(1.5)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0
(0)
0.3
(0.8)
4.8
(12.2)
25.8
(65.5)
Average precipitation days (≥ 0.01 in) 10.4 9.2 10.9 11.5 11.1 11.2 10.4 9.5 8.7 8.9 9.6 10.6 122.0
Average snowy days (≥ 0.1 in) 4.0 2.8 1.8 0.3 0 0 0 0 0 0 0.2 2.3 11.4
Average relative humidity (%) 61.5 60.2 58.5 55.3 62.7 65.2 64.2 66.0 67.8 65.6 64.6 64.1 63.0
Mean monthly sunshine hours 162.7 163.1 212.5 225.6 256.6 257.3 268.2 268.2 219.3 211.2 151.0 139.0 2,534.7
Percent possible sunshine 54 55 57 57 57 57 59 63 59 61 51 48 57
Source: NOAA (relative humidity and sun 1961–1990)[144][142][140] See Geography of New York City for additional climate information from the outer boroughs.

Boroughscapes

Upper Manhattan and Midtown Manhattan as seen from Weehawken, New Jersey. (January 2010)
View of Lower Manhattan at sunset, from Jersey City, New Jersey. One World Trade Center, at center, is the tallest skyscraper in the Western Hemisphere. (November 2014)

Locations

Adjacent counties

National protected areas

Neighborhoods

Manhattan's many neighborhoods are not named according to any particular convention. Some are geographical (the Upper East Side), or ethnically descriptive (Little Italy). Others are acronyms, such as TriBeCa (for "TRIangle BElow CAnal Street") or SoHo ("SOuth of HOuston"), or the far more recent vintages NoLIta ("NOrth of Little ITAly").[122][123] and NoMad ("NOrth of MADison Square Park").[124][125][126] Harlem is a name from the Dutch colonial era after Haarlem, a city in the Netherlands.[127] Alphabet City comprises Avenues A, B, C, and D, to which its name refers. Some have simple folkloric names, such as Hell's Kitchen, alongside their more official but lesser used title (in this case, Clinton).
Some neighborhoods, such as SoHo, are commercial and known for upscale shopping. Others, such as Greenwich Village, the Lower East Side, Alphabet City and the East Village, have long been associated with the Bohemian subculture.[128] Chelsea is one of several Manhattan neighborhoods with large gay populations, and along with SoHo, has become a center of both the international art industry and New York's nightlife.[129] Washington Heights is a primary destination for immigrants from the Dominican Republic. Chinatown has the highest concentration of people of Chinese descent outside of Asia.[130][131] Koreatown is roughly bounded by 6th and Madison Avenues,[132][133][134] between 31st and 33rd Streets, where Hangul (한글) signage is ubiquitous. Rose Hill features a growing number of Indian restaurants and spice shops along a stretch of Lexington Avenue between 25th and 30th Streets which has become known as Curry Hill.[135]
In Manhattan, uptown means north (more precisely north-northeast, which is the direction the island and its street grid system are oriented) and downtown means south (south-southwest).[136] This usage differs from that of most American cities, where downtown refers to the central business district. Manhattan has two central business districts, the Financial District at the southern tip of the island, and Midtown Manhattan. The term uptown also refers to the northern part of Manhattan above 72nd Street and downtown to the southern portion below 14th Street,[137] with Midtown covering the area in between, though definitions can be rather fluid depending on the situation.
Fifth Avenue roughly bisects Manhattan Island and acts as the demarcation line for east/west designations (e.g., East 27th Street, West 42nd Street); street addresses start at Fifth Avenue and increase heading away from Fifth Avenue, at a rate of 100 per block on most streets.[137] South of Waverly Place, Fifth Avenue terminates and Broadway becomes the east/west demarcation line. Though the grid does start with 1st Street, just north of Houston Street (the southernmost street divided in west and east portions; pronounced HOW-stin), the grid does not fully take hold until north of 14th Street, where nearly all east-west streets are numerically identified, which increase from south to north to 220th Street, the highest numbered street on the island. Streets in Midtown are usually one-way, with the few exceptions generally being the busiest cross-town thoroughfares (14th, 23rd, 34th, and 42nd Streets, for example), which are bidirectional across the width of Manhattan Island. The rule of thumb is that odd-numbered streets run west, while even-numbered streets run east.[105]
Public housing in the foreground on the Lower East Side 

Geography

Modern redrawing of 1807 version of Commissioner's Grid plan for Manhattan, a few years before 1811 adoption. Central Park is absent. Dark color denotes existing blocks, light gray were planned.
Central Park in the center of satellite image. Manhattan is bound by Hudson River to the west, Harlem River to the north, and East River.

Components

The borough consists of Manhattan Island, Marble Hill, and several small islands, including Randalls Island and Wards Island, and Roosevelt Island in the East River, and Governors Island and Liberty Island to the south in New York Harbor.[103]
According to the U.S. Census Bureau, New York County has a total area of 33.6 square miles (87 km2), of which 22.8 square miles (59 km2) is land and 10.8 square miles (28 km2) (32%) is water.[104] The northern segment of Upper Manhattan represents a geographic panhandle. Manhattan Island is 22.7 square miles (59 km2) in area, 13.4 miles (21.6 km) long and 2.3 miles (3.7 km) wide, at its widest (near 14th Street).[105]

Manhattan Island

Manhattan Island is loosely divided into Downtown (Lower Manhattan), Midtown (Midtown Manhattan), and Uptown (Upper Manhattan), with Fifth Avenue dividing Manhattan's east and west sides. Manhattan Island is bounded by the Hudson River to the west and the East River to the east. To the north, the Harlem River divides Manhattan Island from the Bronx and the mainland United States.
Early in the 19th century, landfill was used to expand Lower Manhattan from the natural Hudson shoreline at Greenwich Street to West Street.[106] When building the World Trade Center in 1968, 1.2 million cubic yards (917,000 m³) of material was excavated from the site.[107] Rather than dumping the spoil at sea or in landfills, the fill material was used to expand the Manhattan shoreline across West Street, creating Battery Park City.[108] The result was a 700-foot (210-m) extension into the river, running six blocks or 1,484 feet (452 m), covering 92 acres (37 ha), providing a 1.2-mile (1.9 km) riverfront esplanade and over 30 acres (12 ha) of parks.[109]

Marble Hill

One neighborhood of New York County is contiguous with the mainland. Marble Hill at one time was part of Manhattan Island, but the Harlem River Ship Canal, dug in 1895 to improve navigation on the Harlem River, separated it from the remainder of Manhattan as an island between the Bronx and the remainder of Manhattan.[110] Before World War I, the section of the original Harlem River channel separating Marble Hill from The Bronx was filled in, and Marble Hill became part of the mainland.[111]
Marble Hill is one example of how Manhattan's land has been considerably altered by human intervention. The borough has seen substantial land reclamation along its waterfronts since Dutch colonial times, and much of the natural variation in its topography has been evened out.[36]

Smaller islands

In New York Harbor, there are three smaller islands:
Other smaller islands, in the East River, include (from north to south):

Geology

Bedrock

Manhattan schist outcropping in Central Park
The bedrock underlying much of Manhattan is a mica schist known as Manhattan schist.[112] It is a strong, competent metamorphic rock created when Pangaea formed. It is well suited for the foundations of tall buildings. In Central Park, outcrops of Manhattan Schist occur and Rat Rock is one rather large example.[113][114][115]
Geologically, a predominant feature of the substrata of Manhattan is that the underlying bedrock base of the island rises considerably closer to the surface near Midtown Manhattan, dips down lower between 29th Street and Canal Street, then rises toward the surface again in Lower Manhattan. It has been widely believed that the depth to bedrock was the primary underlying reason for the clustering of skyscrapers in the Midtown and Financial District areas, and their absence over the intervening territory between these two areas.[116][117] However, research has shown that economic factors played a bigger part in the locations of these skyscrapers.[118][119][120]

Updated seismic analysis

According to the United States Geological Survey, an updated analysis of seismic hazard in July 2014 revealed a "slightly lower hazard for tall buildings" in Manhattan than previously assessed. Scientists estimated this lessened risk based upon a lower likelihood than previously thought of slow shaking near New York City, which would be more likely to cause damage to taller structures from an earthquake in the vicinity of the city.[121]