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Ichihara, Chiba

Coordinates: 35°29′53″N 140°06′55.6″E / 35.49806°N 140.115444°E / 35.49806; 140.115444
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Ichihara
市原市
Kominato Line, Keiyō Industrial Zone & Mount Fuji Takataki Dam Sunplaza Ichihara Umegase Gorge Kazusa Kokubun-ji Chiba Port district 4:Goi・Anegasaki
Kominato Line, Keiyō Industrial Zone & Mount Fuji
Takataki Dam Sunplaza Ichihara
Umegase Gorge Kazusa Kokubun-ji
Chiba Port district 4:GoiAnegasaki
Flag of Ichihara
Official seal of Ichihara
Location of Ichihara in Chiba Prefecture
Location of Ichihara in Chiba Prefecture
Ichihara is located in Japan
Ichihara
Ichihara
 
Coordinates: 35°29′53″N 140°06′55.6″E / 35.49806°N 140.115444°E / 35.49806; 140.115444
CountryJapan
RegionKantō
PrefectureChiba
First official recordedmid 3rd century (official)
Goi town settledMay 20, 1891[citation needed]
Ichihara town settledMarch 31, 1955
Both town merged and city settledMay 1, 1963
Government
 • MayorJoji Koide (since June 2015)
Area
 • Total
368.17 km2 (142.15 sq mi)
Population
 (December 1, 2020)
 • Total
274,117
 • Density740/km2 (1,900/sq mi)
Time zoneUTC+9 (Japan Standard Time)
Phone number0436-22-1111
Address1-1-1 Kokubunjidai Chūō, Ichihara-shi, Chiba-ken 290-8501
ClimateCfa
WebsiteOfficial website
Symbols
BirdJapanese bush-warbler
FlowerCosmos
TreeGinkgo biloba
Ichihara City Hall

Ichihara (市原市, Ichihara-shi) is a city, located in Chiba Prefecture, Japan. As of 1 December 2020, the city had an estimated population of 274,117 in 128,316 households and a population density of 240 persons per km2.[1] The total area of the city is 368.20 square kilometres (142.16 sq mi). The city is home, together with the city of Chiba, to the JEF United football club. The whole city is also parts of Greater Tokyo Area.

Geography

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Ichihara is located in the western part of the Bōsō Peninsula, and geographically is the largest of Chiba Prefecture's cities and towns. The south is a mountainous area connected to the Boso hills. The highly industrialized northern part of the city faces Tokyo Bay. Ichihara, dense in housing developments, serves as a satellite town of Tokyo and Chiba City.

Surrounding municipalities

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Chiba Prefecture

Climate

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Ichihara has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Ichihara is 15.1 °C (59.2 °F). The average annual rainfall is 1,673.1 mm (65.87 in) with October as the wettest month. The temperatures are highest on average in August, at around 26.5 °C (79.7 °F), and lowest in January, at around 4.1 °C (39.4 °F).[2]

Climate data for Ichihara (1991−2020 normals, extremes 1978−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 21.1
(70.0)
24.6
(76.3)
27.5
(81.5)
30.0
(86.0)
35.7
(96.3)
36.5
(97.7)
40.2
(104.4)
39.2
(102.6)
37.5
(99.5)
33.8
(92.8)
26.4
(79.5)
24.3
(75.7)
40.2
(104.4)
Mean daily maximum °C (°F) 10.5
(50.9)
11.3
(52.3)
14.4
(57.9)
19.5
(67.1)
23.7
(74.7)
26.1
(79.0)
30.3
(86.5)
31.8
(89.2)
27.7
(81.9)
22.4
(72.3)
17.6
(63.7)
12.9
(55.2)
20.7
(69.2)
Daily mean °C (°F) 4.1
(39.4)
5.2
(41.4)
8.6
(47.5)
13.7
(56.7)
18.2
(64.8)
21.3
(70.3)
25.4
(77.7)
26.5
(79.7)
22.9
(73.2)
17.3
(63.1)
11.8
(53.2)
6.6
(43.9)
15.1
(59.2)
Mean daily minimum °C (°F) −1.5
(29.3)
−0.6
(30.9)
2.9
(37.2)
8.0
(46.4)
13.1
(55.6)
17.3
(63.1)
21.5
(70.7)
22.5
(72.5)
19.0
(66.2)
13.0
(55.4)
6.6
(43.9)
1.1
(34.0)
10.2
(50.4)
Record low °C (°F) −8.0
(17.6)
−9.2
(15.4)
−5.7
(21.7)
−2.4
(27.7)
3.3
(37.9)
8.0
(46.4)
11.7
(53.1)
14.3
(57.7)
7.7
(45.9)
1.8
(35.2)
−3.1
(26.4)
−7.0
(19.4)
−9.2
(15.4)
Average precipitation mm (inches) 82.4
(3.24)
74.0
(2.91)
138.0
(5.43)
132.5
(5.22)
130.4
(5.13)
170.6
(6.72)
151.8
(5.98)
114.8
(4.52)
237.1
(9.33)
256.8
(10.11)
113.9
(4.48)
70.9
(2.79)
1,673.1
(65.87)
Average precipitation days (≥ 1.0 mm) 6.3 6.9 11.2 10.5 10.4 11.9 10.0 7.3 11.8 12.0 9.0 6.5 113.8
Mean monthly sunshine hours 182.0 158.4 160.8 172.1 170.1 117.3 159.2 192.0 135.7 126.4 142.2 162.9 1,879.2
Source: Japan Meteorological Agency[3][2]

History

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The area of modern Ichihara is the center of ancient Kazusa province. The ruins of the Nara period Kazusa Kokubun-ji provincial temple have been found within the borders of Ichihara, although the exact location of the Nara-period provincial capital remains uncertain. During the Sengoku period, the area was contested between the Chiba clan to the north, and the Satomi clan to the south. During the Edo period, the area was divided between Goi Domain, Tsurumaki Domain and large areas of tenryō territory controlled directly by the Tokugawa shogunate and administered by various hatamoto.

Timeline

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  • During the Meiji period, the area was reorganized into 171 villages under Ichihara District, Chiba Prefecture with the establishment of the modern municipalities system.
  • In September 1923, the city was affected by Great Kanto earthquake.
  • By 1945, these villages had been consolidated into five towns and 16 villages.
  • Through further consolidation and mergers, the city of Ichihara was founded on May 1, 1963.
  • On 1 October 1967, the neighboring town of Nansō, and village of Kamo were merged into Ichihara.
  • On 11 March 2011, the city was struck by earthquake and tsunami and the subsequent Fukushima nuclear disaster, which causes of the natural gas storage tanks at the Cosmo oil refinery in Ichihara were set on fire by the earthquake.[4][5]

Government

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Ichihara has a mayor-council form of government with a directly elected mayor and a unicameral city council of 32 members. Ichihara contributes four members to the Chiba Prefectural Assembly. In terms of national politics, the city is part of Chiba 3rd district of the lower house of the Diet of Japan.

Demographics

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Per Japanese census data,[6] the population of Ichihara has recently plateaued after several decades of strong growth.

Historical population
YearPop.±%
1920 68,825—    
1930 71,287+3.6%
1940 75,069+5.3%
1950 98,375+31.0%
1960 94,309−4.1%
1970 155,852+65.3%
1980 216,394+38.8%
1990 257,716+19.1%
2000 278,218+8.0%
2010 280,416+0.8%
2020 269,524−3.9%

Economy

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The city's economy is fueled by a large industrial complex overlooking Tokyo Bay. It contains the largest number of oil refineries in Japan, as well as power, petrochemical and shipbuilding companies.[7]

Education

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  • Teikyo Heisei University
  • Ichihara has 41 public elementary schools and 21 public middle schools operated by the city government, and six public high schools operated by the Chiba Prefectural Board of Education. There are also one private elementary school and two private high schools. The prefecture also operates one special education school for the handicapped.

Transportation

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Railway

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JR EastUchibō Line

Keisei Electric RailwayKeisei Chihara Line

Kominato RailwayKominato Line

Highway

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Sister cities

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Crime and safety

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The Soai-kai yakuza syndicate is headquartered in Ichihara.[8] A designated yakuza group, the Soai-kai is one of the three dominating yakuza syndicates in Chiba Prefecture, along with the Sumiyoshi-kai and the Inagawa-kai.[9]

Notable people from Ichihara

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References

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  1. ^ "Ichihara city official statistics" (in Japanese). Japan.
  2. ^ a b 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved April 2, 2022.
  3. ^ 観測史上1~10位の値(年間を通じての値). JMA. Retrieved April 2, 2022.
  4. ^ "Japan earthquake causes oil refinery inferno". Daily Telegraph, London, 11 March 2011, Retrieved 11 March 2011
  5. ^ "Natural gas storage tanks burn at Cosmo oil refinery in Ichihara city" Archived 2012-04-06 at the Wayback Machine. Reuters AlertNet. 11 March 2011, Retrieved 11 March 2011
  6. ^ Ichihara population statistics
  7. ^ "An Outline of Ichihara City". Archived from the original on 2008-02-16. Retrieved 2008-03-23.
  8. ^ "2010 Police White Paper Chapter 2 : Furtherance of Organized Crime Countermeasures", 2010, National Police Agency (in Japanese)
  9. ^ "Condition of Boryokudan" Archived 2011-08-20 at the Wayback Machine, as of late 2010, Chiba Prefectural Police (in Japanese)
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