Kamaishi, Iwate

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Kamaishi City Hall, May 2013
Kamaishi City Hall, May 2013
Flag of Kamaishi
Official seal of Kamaishi
Location of Kamaishi in Iwate Prefecture
Location of Kamaishi in Iwate Prefecture
Kamaishi is located in Japan
Coordinates: 39°16′32.9″N 141°53′8.5″E / 39.275806°N 141.885694°E / 39.275806; 141.885694Coordinates: 39°16′32.9″N 141°53′8.5″E / 39.275806°N 141.885694°E / 39.275806; 141.885694
PrefectureIwate Prefecture
 • MayorTakenori Noda
 • Total440.34 km2 (170.02 sq mi)
 (June 1, 2019)
 • Total34,289
 • Density78/km2 (200/sq mi)
Time zoneUTC+9 (Japan Standard Time)
City symbols 
• TreeTabunoki (Machilus thunbergii)
• FlowerSukashiyuri (Lilium pseudolirion)
• BirdStreaked shearwater
Phone number0193-22-2111
Address3-9-13, Tadakoechō, Kamaishi-shi, Iwate-ken

Kamaishi (釜石市, Kamaishi-shi) is a city located on the Sanriku rias coast in Iwate Prefecture, Japan. As of 1 June 2019, the city had an estimated population of 34,289, and a population density of 77.9 persons per km², in 16,424 households.[1] The total area of the city is 441.43 square kilometres (170.44 sq mi)[2]


Kamaishi is located in the Kitakami Mountains of south-central Iwate Prefecture, with the Pacific Ocean to the east. The spectacular, rugged coast of Kamaishi is entirely within the Sanriku Fukkō National Park. There are four large bays, Ōtsuchi Bay in the north, Ryōishi Bay, Kamaishi Bay and Tōni Bay in the south. Each is separated by large, rocky, pine-covered peninsulas which jut out into the Pacific Ocean. Immediately the rocky cliffs develop into hills rising to 400 or 500 metres (1,300 or 1,600 ft) along the coast and 1,200 or 1,300 metres (3,900 or 4,300 ft) farther inland.

The highest point in Kamaishi is Mount Goyōzan in the southwest at 1,341.3 meters in elevation. Most of the land is mountainous, allowing for little agriculture. The main rivers are the Kasshigawa River which empties into Kamaishi Bay and the Unosumai River which empties into Ōtsuchi Bay. Both have small floodplains that allow for development and agriculture.

Neighboring municipalities[edit]



Kamaishi has a humid subtropical climate (Köppen Cfa) characterized by mild summers and cold winters. The average annual temperature in Kamaishi is 10.1 °C. The average annual rainfall is 1453 mm with September as the wettest month and February as the driest month. The temperatures are highest on average in August, at around 22.5 °C, and lowest in January, at around -0.8 °C.[3]

Climate data for Kamaishi(1981 - 2010 average)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 15.9
Average high °C (°F) 5.0
Daily mean °C (°F) 0.8
Average low °C (°F) −3.1
Record low °C (°F) −11.4
Average precipitation mm (inches) 62.5
Source: Japan Meteorological Agency[4][5]


Per Japanese census data,[6] the population of Kamaishi has declined over the past 40 years.

Census Year Population
1970 72,923
1980 65,250
1990 52,484
2000 46,521
2010 39,568


The area of present-day Kamaishi was part of ancient Mutsu Province, and has been settled since at least the Jōmon period. The area was inhabited by the Emishi people, and came under the control of the Yamato dynasty during the early Heian period. During the Sengoku period, the area was dominated by various samurai clans before coming under the control of the Nambu clan during the Edo period, who ruled Morioka Domain under the Tokugawa shogunate.

In the Meiji period establishment of the modern municipalities system, the town of Kamaishi was established within Minamihei District, Iwate on April 1, 1889. Minamihei and Nishihei Districts merged to form Kamihei District in 1896. Kamaishi attained city status on May 5, 1937, and expanded in 1955 with the absorption of the neighboring villages of Kasshi, Unosumai, Kurihashi from Kamihei District and the village of Tōni from Kesen District.

Pre-Meiji Kamaishi[edit]

Before the discovery of magnetite in 1727, Kamaishi was little different from any of the other small fishing communities along the coast. However, it was not until 1857, and the construction of the first small blast furnace, that any real changes could be seen. In the 1850s, the feudal domains of Japan were engaged in an arms race to develop the first Western-style armaments, particularly large guns. The Nanbu Domain constructed blast furnaces of a foreign design in Kamaishi under the direction of military engineer Takatō Ōshima. Ten furnaces were built in all but some were owned by private corporations. The first of these furnaces was lit on December 1, 1857; a day honored as the start of modern iron production in Japan.

Early modern Kamaishi[edit]

In 1875, the newly established Meiji government bought all of the furnaces and created the Kamaishi Iron Works. They also put Ōshima and a German engineer in charge of its modernization. The German director imported two large steam-driven blast furnaces of the latest design from Britain and set up a railway with 15 miles of track and a locomotive purchased from Manchester to deliver the ore. Production began in 1880 but had to be stopped soon after due to a lack of charcoal. An attempt to resume operations in 1882 by replacing charcoal with coke failed and the plant was closed.

There were cholera outbreaks in Kamaishi in July 1882 and April 1884. The first left 302 people dead and warnings about the drinking water were posted throughout the prefecture.

In 1885, a new foundry was established which used coal from Hokkaido and iron ore from China.

The 1896 Sanriku earthquake struck on June 15 at 7:32 pm while families were celebrating Boy's Festival on the beach. The earthquake measured magnitude 8.5 while the tsunami on the Iwate coast reached as high as 24 meters in places – the highest ever recorded in Japan at the time. The city of Kamaishi was completely destroyed. The French Catholic missionary Henri Lispard was also swept out to sea and died when the wave struck.

A devastating earthquake and tsunami affected Kamaishi in March 1933

Kamaishi in WWII[edit]

As an important foundry town, Kamaishi played a significant role in the Japanese war effort and was targeted by the U.S. Navy during World War II. On 14 July 1945, under the command of Rear Admiral John F. Shafroth, the battleships South Dakota, Indiana, and Massachusetts, the heavy cruisers Chicago and Quincy, and nine destroyers bombarded the Japan Ironworks and warehouses, along with nearby oil tanks and vessels, to great effect. This was the first naval bombardment of the Japanese mainland. Rear Admiral John F. Shafroth's battleships and cruisers, joined by two Royal Navy light cruisers, attacked again on 9 August.[7] The mill was also the site of the Sendai Prisoner of War Camp, and more than 50 allied prisoners were killed in the raids. [8]

Kamaishi after WWII[edit]

Kamaishi played its part in Japan's post-war boom, continuing its reputation as a steel town, a reputation reflected in the name of its rugby team - the Kaminashi Nippon Steel Rugby Club. In 1960, the town was crippled by a tsunami generated by the 1960 Valdivia earthquake. However, following the closure of the steel mills in 1988, the economy of city collapsed, and almost half its population moved away. Kamaishi is now known more for commercial fishing than heavy industry. On September 30, 2010, Foreign Policy magazine used Kamaishi as an example of Japan's relative decline in the "Lost Decade".

2011 Tōhoku earthquake and tsunami[edit]

Kamaishi was heavily damaged by the 2011 Tōhoku earthquake and tsunami,[9] in which 1,250 city residents were killed or are missing;[10] at least 4 of the town's 69 designated evacuation sites [11] and three of the town's 14 schools were inundated. Of the 2,900 students who attended the town's schools, five elementary or junior high school students were killed or are missing.[12]

Noted fatalities, victims of the earthquake and tsunami in Kamaishi, included 104-year-old Takashi Shimokawara, holder of the world athletics records in the men's shot put, discus throw and javelin throw for the over-100s age category.[13]

Tsunami waves as tall as 14 ft (4.3 m) surmounted the 1,950 m (6,400 ft) long and 63 m (207 ft) deep Kamaishi Tsunami Protection Breakwater,[14] which had been completed in March 2009, after three decades of construction, at a cost of $1.5 billion.[14] It was once recognized by the Guinness World Records as the world's deepest breakwater.[15] The subsequent decision to rebuild the breakwater at a cost of over 650 million dollars was criticised as "a waste of money that aims to protect an area of rapidly declining population with technology that is a proven failure".[16]

Numerous news videos were broadcast of the city, which can be recognized by a large green crane in the background and water rushing against tall buildings at the edge of the city.


Kamaishi has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 19 members.


Kamaishi was famous in modern times for its steel production and most recently for its promotion of eco-tourism. Commercial fishing and shellfish production are also important economic activities.


Kamaishi has nine public elementary schools, five public junior high schools operated by the city board of education, and three public high schools operated by the Iwate Prefectural Board of Education. The prefecture also operates one special education school.


Kamaishi was the home to one of Japan's most successful rugby union clubs, Nippon Steel Kamaishi, which existed from 1959 to 2001 and won several national titles during the 1970s and 1980s. The club was succeeded by the modern Kamaishi Seawaves.[17] As part of the post-disaster recovery of the region, Kamaishi will host part of the 2019 Rugby World Cup at a new stadium holding 16,000 spectators.[18]

Kamaishi won the "Award for Character" of the Rugby World Cup 2019 awards.

The city also has a semi-professional association football club, Nippon Steel Corp. Kamaishi S.C., which plays in the 5th division Tohoku Soccer League.





Local attractions[edit]

International relations[edit]

Noted people from Kamaishi[edit]


  1. ^ 釜石市. "釜石市の人口・世帯(平成30年3月末現在)-釜石市の人口-統計情報-市政の情報-釜石市". www.city.kamaishi.iwate.jp. Retrieved 12 September 2018.
  2. ^ 詳細データ 岩手県釜石市. 市町村の姿 グラフと統計でみる農林水産業 (in Japanese). Ministry of Agriculture, Forestry and Fisheries. 2016. Archived from the original on 31 July 2017. Retrieved 13 April 2017.
  3. ^ climate data[permanent dead link]
  4. ^ "平年値(年・月ごとの値)". JMA. Archived from the original on 2016-03-04. Retrieved 2015-07-20.
  5. ^ "観測史上1 - 10位の値(年間を通じての値)". JMA. Archived from the original on 2016-03-04. Retrieved 2015-07-20.
  6. ^ "Iwate (Japan): Prefecture, Major Cities & Towns - Population Statistics in Maps and Charts". www.citypopulation.de. Archived from the original on 9 January 2018. Retrieved 25 April 2018.
  7. ^ "The Official Chronology of the U.S. Navy in World War II--1945". www.ibiblio.org. Archived from the original on 17 September 2017. Retrieved 25 April 2018.
  8. ^ http://www.mansell.com/pow_resources/camplists/sendai/Sendai_5_Kamaishi/sendai_5_main.html
  9. ^ "Kamaishi engulfed by tsunami after earthquake rocks Japan". The Guardian. 11 March 2011. Archived from the original on 15 October 2017. Retrieved 14 October 2017.
  10. ^ Ito, Shingo (28 March 2011). "Japan city's 'last geisha' defies tsunami". News.com.au. Agence France-Presse. Archived from the original on 15 October 2017. Retrieved 14 October 2017.
  11. ^ Kyodo News, "Tsunami hit more than 100 designated evacuation sites Archived 2011-04-16 at the Wayback Machine", Japan Times, 14 April 2011, p. 1.
  12. ^ Kamiya, Setsuko, "Students credit survival to disaster-preparedness drills Archived 2011-06-06 at the Wayback Machine", Japan Times, 4 June 2011, p. 3.
  13. ^ "Takashi Shimokawara, 104, a victim of Japanese tsunami" Archived 2011-08-23 at the Wayback Machine, International Association of Athletics Federations, 30 March 2011
  14. ^ a b Onishi, Norimitsu (13 March 2011). "Japan's Seawalls Were Little Security Against Tsunami". The New York Times. Archived from the original on 14 March 2011.
  15. ^ Ishikawa, Kaoru (5 October 2010). "Deepest Breakwater". Guinness World Records. Archived from the original on 18 March 2011. Retrieved 14 October 2017.
  16. ^ Onishi, Norimitsu (3 November 2011). "Japan Revives a Sea Barrier That Failed to Hold". The New York Times. p. A1. Archived from the original on 15 October 2017. Retrieved 14 October 2017.
  17. ^ Ikezawa, Hiroshi (3 March 2015). "Twelve cities selected for 2019 RWC". The Japan Times. Archived from the original on 14 October 2017. Retrieved 14 October 2017.
  18. ^ Psaltis, Eleni (27 July 2015). "Tsunami-devestated Kamaishi hoping luck turns on 2019 Ruby World Cup". ABC News Radio. Sydney, Australia. Archived from the original on 14 October 2017. Retrieved 14 October 2017.
  19. ^ Centre, UNESCO World Heritage. "Sites of Japan's Meiji Industrial Revolution: Iron and Steel, Shipbuilding and Coal Mining". whc.unesco.org. Archived from the original on 17 October 2017. Retrieved 25 April 2018.
  20. ^ "International Exchange". List of Affiliation Partners within Prefectures. Council of Local Authorities for International Relations (CLAIR). Archived from the original on 22 December 2015. Retrieved 21 November 2015.

External links[edit]

Media related to Kamaishi, Iwate at Wikimedia Commons