# Iwate Prefecture

Iwate Prefecture (岩手県, Iwate-ken) is a prefecture of Japan located in the Tōhoku region of Honshu. It is the second-largest Japanese prefecture (behind Hokkaido) at 15,275 square kilometres (5,898 sq mi), with a population of 1,165,886 (as of July 1, 2023). Iwate Prefecture borders Aomori Prefecture to the north, Akita Prefecture to the west, and Miyagi Prefecture to the south.
Morioka is the capital and largest city of Iwate Prefecture; other major cities include Ichinoseki, Ōshū, and Hanamaki. Located on Japan's Pacific Ocean coast, Iwate Prefecture features the easternmost point of Honshu at Cape Todo, and shares the highest peaks of the Ōu Mountains—the longest mountain range in Japan—at the border with Akita Prefecture. Iwate Prefecture is home to famous attractions such as Morioka Castle, the Buddhist temples of Hiraizumi including Chūson-ji and Mōtsū-ji, the Fujiwara no Sato movie lot and theme park in Ōshū, and the Tenshochi park in Kitakami known for its huge, ancient cherry trees. Iwate has the lowest population density of any prefecture outside Hokkaido, 5% of its total land area having been designated as national parks.

## Name

There are several theories about the origin of the name "Iwate", but the most well known is the tale Oni no tegata, which is associated with the Mitsuishi or "Three Rocks" Shrine in Morioka. These rocks are said to have been thrown down into Morioka by an eruption of Mt. Iwate. According to the legend, there was once a devil who often tormented and harassed the local people. When the people prayed to the spirits of Mitsuishi for protection, the devil was immediately shackled to these rocks and forced to make a promise never to trouble the people again. As a seal of his oath, the devil made a handprint on one of the rocks, giving rise to the name Iwate, its direct translation being "rock hand". Even now after a rainfall, it is said that the devil's hand print can still be seen there.

## Culture

There are many present-day cultural foods popularly eaten in Iwate Prefecture, some of which include walnuts, wanko soba (meaning "bowl noodles") and hittsumi-jiru (meaning "pull and tear", in reference to the way the dough is pulled and torn into oval shapes before being turned into noodles). Iwate's prefectural capital Morioka is also popular for its apples, blooming in May and ready for harvest from September to November.
Japanese poet Matsuo Bashō visited Iwate and wrote about it in the journey described in his major work Oku no Hosomichi. He was especially inspired by the town of Hiraizumi.

## History

While the entire island of Honshū was claimed by the Japanese, or Yamato, government from earliest times, the imperial forces were unable to occupy any part of what would become Iwate until 802 when two powerful Emishi leaders, Aterui and More, surrendered at Fort Isawa.
The area now known as Iwate Prefecture was inhabited by the Jōmon people who left their artifacts throughout the prefecture. For example, a large number of burial pits from the Middle Jōmon Period (2,800–1,900 BC) have been found in Nishida. Various sites from the Late Jōmon Period (1,900–1,300 BC) including Tateishi, Makumae and Hatten contain clay figurines, masks and ear and nose shaped clay artifacts. The Kunenbashi site in Kitakami City has yielded stone "swords", tablets and tools as well as clay figurines, earrings and potsherds from the Final Jōmon Period (1,300–300 BC).
The earliest mention of a Japanese presence dates to about 630 when the Hakusan Shrine was said to have been built on Mt. Kanzan in what is now Hiraizumi. At this time various Japanese traders, hunters, adventurers, priests and criminals made their way to Iwate. In 712 the province of Mutsu, containing all of Tōhoku, was divided into Dewa Province, the area west of the Ōu Mountains and Mutsu Province. In 729 Kokuseki-ji Temple was founded in what is now Mizusawa Ward, Oshu City by the itinerant priest Gyōki.
Little is known about relations between these Japanese frontiersmen and the native Emishi but in 776 they took a turn for the worse when large forces of the Yamato army invaded Iwate attacking the Isawa and Shiwa tribes in February and November of that year. More fighting occurred the next and following years but mostly in Dewa and the area south of present-day Iwate prefecture. This situation continued until March 787 when the Yamato army suffered a disastrous defeat in the Battle of Sufuse Village in what is now Mizusawa Ward, Oshu City. There the Emishi leaders and Aterui leading a large cavalry force trapped the Yamato infantry and pushed them into the Kitakami River where their heavy armour proved deadly. Over 1,000 soldiers drowned that day. The Japanese general Ki no Asami Kosami was "rebuked" by the Emperor Kanmu when he returned to Kyoto.
Since the Japanese could not win on the battlefield they resorted to other means to conquer the Emishi. Trade for superior quality iron wares and sake made the Emishi dependent on the Japanese for these valuable goods. Bribes were offered to the Emishi leaders in the form of Japanese citizenship and rank if they would defect. Finally a campaign of burning crops and kidnapping the Emishi women and children and relocating them to Western Japan was adopted.
In 801, Sakanoue no Tamuramaro began a new campaign against the Isawa Emishi having moderate success. Finally on 15 April 802 the Emishi leaders More and Aterui surrendered with some 500 warriors. The captives were taken to Kyoto for an audience with the emperor and beheaded at Moriyama in Kawachi Province against the wishes of General Sakanoue. This act of cruelty enraged the Emishi leading to another twenty or more years of fighting.
After the surrender numerous forts were built on the Chinese model along the Kitakami River. In 802, Fort Isawa was built in what is now Mizusawa Ward, Oshu City, in 803, Fort Shiwa was built in what is now Morioka City, and in 812 Fort Tokutan was built also in Morioka.
In the latter part of the Heian period, the town of Hiraizumi in what is now southern Iwate became the capital of the Northern Fujiwara. The warrior Minamoto no Yoshitsune fled here after the Genpei War.
Until the Meiji Restoration, the area of Iwate prefecture was part of Mutsu Province.
Iwate Prefecture was created in 1876, in the aftermath of the Boshin Civil War, which heralded the beginning of the Meiji Restoration.

## Geography

Iwate faces the Pacific Ocean to the east with sheer, rocky cliffs along most of the shoreline interrupted by a few sandy beaches. The border with Akita Prefecture on the west is generally formed by the highest points of the Ōu Mountains. Aomori Prefecture is to the north and Miyagi Prefecture is to the south.
The Ōu mountains on the west still contain active volcanoes such as Mt. Iwate (at 2,038 metres (6,686 ft) the highest point in the prefecture) and Mt. Kurikoma (1,627 metres (5,338 ft)). But the Kitakami Mountains running through the middle of the prefecture from north to south are much older and have not been active for thousands of years. Mt. Hayachine (1,917 metres (6,289 ft)) lies at the heart of the Kitakami range.
Besides these two mountain ranges and the rugged coastline, the prefecture is characterized by the Kitakami River which flows from north to south between the Ōu and Kitakami mountain ranges. It is the fourth longest river in Japan and the longest in Tōhoku. The basin of the Kitakami is large and fertile providing room for the prefecture's largest cities, industrial parks and farms.
In the past Iwate has been famous for its mineral wealth especially in the form of gold, iron, coal and sulfur but these are no longer produced. There is still an abundance of hot water for onsen, or hot springs, which is the basis of a thriving industry. The forests of the prefecture are another valuable resource. Before World War II the forests were mainly composed of beech but since then there has been a huge swing towards the production of faster growing Japanese cedar. Recently, though, there has been a push to restore the original beech forests in some areas.
As of 31 March 2019, 5% of the total land area of the prefecture was designated as Natural Parks, namely Towada-Hachimantai and Sanriku Fukkō National Parks; Kurikoma and Hayachine Quasi-National Parks; and Goyōzan, Hanamaki Onsenkyō, Kuji-Hiraniwa, Murone Kōgen, Oritsume Basenkyō, Sotoyama-Hayasaka Heights, and Yuda Onsenkyō Prefectural Natural Parks.

### Cities

Fourteen cities are located in Iwate Prefecture:
| Name | Name | Area (km$^2$) | Population | Population density (per km$^2$) | Map |
| Rōmaji | Kanji | Area (km$^2$) | Population | Population density (per km$^2$) | Map |
| Hachimantai | 八幡平市 | 862.3 | 25,076 | 29.08 | |
| Hanamaki | 花巻市 | 908.39 | 94,691 | 104.24 | |
| Ichinoseki | 一関市 | 1,256.42 | 114,476 | 91.11 | |
| Kamaishi | 釜石市 | 440.34 | 32,609 | 74.05 | |
| Kitakami | 北上市 | 437.55 | 92,311 | 210.97 | |
| Kuji | 久慈市 | 623.5 | 34,418 | 55.20 | |
| Miyako | 宮古市 | 1,259.15 | 51,150 | 40.62 | |
| Morioka (capital) | 盛岡市 | 886.47 | 290,700 | 327.93 | |
| Ninohe | 二戸市 | 420.42 | 26,344 | 62.66 | |
| Ōfunato | 大船渡市 | 322.51 | 35,452 | 109.93 | |
| Ōshū | 奥州市 | 993.3 | 114,620 | 115.39 | |
| Rikuzentakata | 陸前高田市 | 231.94 | 19,062 | 82.19 | |
| Takizawa | 滝沢市 | 182.46 | 55,325 | 303.22 | |
| Tōno | 遠野市 | 825.97 | 26,110 | 31.61 | |

### Towns and villages

These are the towns and villages in each district:
| Name | Name | Area (km$^2$) | Population | Population density (per km$^2$) | District | Type | Map |
| Rōmaji | Kanji | Area (km$^2$) | Population | Population density (per km$^2$) | District | Type | Map |
| Fudai | 普代村 | 69.66 | 2,607 | 37.42 | Shimohei District | Village | |
| Hiraizumi | 平泉町 | 63.39 | 7,408 | 116.86 | Nishiiwai District | Town | |
| Hirono | 洋野町 | 302.92 | 15,398 | 50.83 | Kunohe District | Town | |
| Ichinohe | 一戸町 | 300.03 | 12,053 | 40.17 | Ninohe District | Town | |
| Iwaizumi | 岩泉町 | 992.36 | 8,987 | 9.06 | Shimohei District | Town | |
| Iwate | 岩手町 | 360.46 | 13,111 | 36.37 | Iwate District | Town | |
| Kanegasaki | 金ケ崎町 | 179.76 | 15,580 | 86.67 | Isawa District | Town | |
| Karumai | 軽米町 | 245.82 | 8,895 | 36.19 | Kunohe District | Town | |
| Kunohe | 九戸村 | 134.02 | 5,650 | 42.16 | Kunohe District | Village | |
| Kuzumaki | 葛巻町 | 434.99 | 5,632 | 12.95 | Iwate District | Town | |
| Nishiwaga | 西和賀町 | 590.74 | 5,468 | 9.26 | Waga District | Town | |
| Noda | 野田村 | 80.8 | 4,201 | 51.99 | Kunohe District | Village | |
| Ōtsuchi | 大槌町 | 200.42 | 11,572 | 57.74 | Kamihei District | Town | |
| Shiwa | 紫波町 | 238.98 | 33,090 | 138.46 | Shiwa District | Town | |
| Shizukuishi | 雫石町 | 608.82 | 16,263 | 26.71 | Iwate District | Town | |
| Sumita | 住田町 | 334.84 | 5,315 | 15.87 | Kesen District | Town | |
| Tanohata | 田野畑村 | 156.19 | 3,244 | 20.77 | Shimohei District | Village | |
| Yahaba | 矢巾町 | 67.32 | 27,227 | 404.44 | Shiwa District | Town | |
| Yamada | 山田町 | 262.81 | 15,195 | 57.82 | Shimohei District | Town | |

### Climate
#### Temperature comparison

Monthly average highs and lows for various cities and towns in Iwate Prefecture in Fahrenheit and Celsius :
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Morioka | 2.0 / −5.2 (35.6 / 22.6) | 3.2 / −4.8 (37.8 / 23.4) | 7.5 / −1.8 (45.5 / 28.8) | 14.4 / 3.2 (57.9 / 37.8) | 20.3 / 9.1 (68.5 / 48.4) | 24.1 / 14.2 (75.4 / 57.6) | 27.1 / 18.8 (80.8 / 65.8) | 28.4 / 19.8 (83.1 / 67.6) | 24.3 / 15.2 (75.7 / 59.4) | 17.9 / 7.9 (64.2 / 46.2) | 10.9 / 1.8 (51.6 / 35.2) | 4.5 / −2.5 (40.1 / 27.5) |
| Miyako | 5.2 / −3.5 (41.4 / 25.7) | 5.6 / −3.5 (42.1 / 25.7) | 9.1 / −0.8 (48.4 / 30.6) | 14.6 / 3.9 (58.3 / 39.0) | 18.9 / 9.0 (66.0 / 48.2) | 21.0 / 13.1 (69.8 / 55.6) | 24.4 / 17.4 (75.9 / 63.3) | 26.3 / 19.2 (79.3 / 66.6) | 23.5 / 15.6 (74.3 / 60.1) | 18.8 / 9.2 (65.8 / 48.6) | 13.5 / 3.0 (56.3 / 37.4) | 7.7 / −1.4 (45.9 / 29.5) |
| Hachimantai | 0.8 / −7.9 (33.4 / 17.8) | 1.9 / −7.6 (35.4 / 18.3) | 6.2 / −3.7 (43.2 / 25.3) | 13.5 / 1.4 (56.3 / 34.5) | 19.8 / 7.8 (67.6 / 46.0) | 23.6 / 13.0 (74.5 / 55.4) | 26.6 / 17.5 (79.9 / 63.5) | 27.7 / 18.3 (81.9 / 64.9) | 23.4 / 13.3 (74.1 / 55.9) | 17.1 / 5.8 (62.8 / 42.4) | 10.0 / 0.1 (50.0 / 32.2) | 3.4 / −4.5 (38.1 / 23.9) |
| Ichinoseki | 3.8 / −3.6 (38.8 / 25.5) | 5.1 / −3.3 (41.2 / 26.1) | 9.5 / −0.8 (49.1 / 30.6) | 16.0 / 4.0 (60.8 / 39.2) | 21.5 / 10.1 (70.7 / 50.2) | 24.7 / 15.2 (76.5 / 59.4) | 27.9 / 19.4 (82.2 / 66.9) | 29.3 / 20.6 (84.7 / 69.1) | 25.3 / 16.5 (77.5 / 61.7) | 19.3 / 9.5 (66.7 / 49.1) | 12.7 / 3.0 (54.9 / 37.4) | 6.1 / −1.4 (43.0 / 29.5) |
| Kitakami | 2.4 / −4.2 (36.3 / 24.4) | 3.6 / −3.7 (38.5 / 25.3) | 8.1 / −0.8 (46.6 / 30.6) | 15.0 / 4.2 (59.0 / 39.6) | 20.8 / 10.3 (69.4 / 50.5) | 24.3 / 15.3 (75.7 / 59.5) | 27.4 / 19.4 (81.3 / 66.9) | 28.9 / 20.5 (84.0 / 68.9) | 24.8 / 16.2 (76.6 / 61.2) | 18.5 / 9.1 (65.3 / 48.4) | 11.6 / 2.9 (52.9 / 37.2) | 4.9 / −1.7 (40.8 / 28.9) |
| Kuji | 3.8 / −4.7 (38.8 / 23.5) | 4.4 / −4.9 (39.9 / 23.2) | 8.2 / −2.0 (46.8 / 28.4) | 13.8 / 2.4 (56.8 / 36.3) | 18.4 / 7.7 (65.1 / 45.9) | 20.5 / 12.3 (68.9 / 54.1) | 24.1 / 16.9 (75.4 / 62.4) | 26.1 / 18.5 (79.0 / 65.3) | 23.6 / 14.5 (74.5 / 58.1) | 18.5 / 7.4 (65.3 / 45.3) | 12.8 / 1.4 (55.0 / 34.5) | 6.4 / −2.7 (43.5 / 27.1) |
| Ninohe | 1.7 / −6.6 (35.1 / 20.1) | 2.7 / −6.4 (36.9 / 20.5) | 7.1 / −3.1 (44.8 / 26.4) | 14.2 / 1.8 (57.6 / 35.2) | 20.3 / 7.7 (68.5 / 45.9) | 23.6 / 12.6 (74.5 / 54.7) | 26.6 / 17.4 (79.9 / 63.3) | 27.7 / 18.3 (81.9 / 64.9) | 23.9 / 13.8 (75.0 / 56.8) | 17.8 / 6.4 (64.0 / 43.5) | 11.1 / 0.6 (52.0 / 33.1) | 4.3 / −3.8 (39.7 / 25.2) |
| Ōfunato | 4.7 / −2.4 (40.5 / 27.7) | 5.6 / −2.3 (42.1 / 27.9) | 9.1 / 0.1 (48.4 / 32.2) | 14.5 / 4.7 (58.1 / 40.5) | 19.1 / 9.9 (66.4 / 49.8) | 22.1 / 14.5 (71.8 / 58.1) | 25.6 / 18.7 (78.1 / 65.7) | 27.2 / 20.1 (81.0 / 68.2) | 24.2 / 16.5 (75.6 / 61.7) | 19.0 / 10.2 (66.2 / 50.4) | 13.3 / 4.1 (55.9 / 39.4) | 7.4 / −0.2 (45.3 / 31.6) |
| Ichinohe | −1.0 / −9.6 (30.2 / 14.7) | 0.1 / −9.2 (32.2 / 15.4) | 4.1 / −5.5 (39.4 / 22.1) | 11.8 / 0.3 (53.2 / 32.5) | 18.0 / 6.1 (64.4 / 43.0) | 21.5 / 11.3 (70.7 / 52.3) | 24.5 / 16.2 (76.1 / 61.2) | 25.6 / 17.1 (78.1 / 62.8) | 21.6 / 12.3 (70.9 / 54.1) | 15.4 / 4.9 (59.7 / 40.8) | 8.3 / −1.0 (46.9 / 30.2) | 1.6 / −6.1 (34.9 / 21.0) |
| Iwaizumi | 3.6 / −5.0 (38.5 / 23.0) | 4.5 / −5.0 (40.1 / 23.0) | 8.8 / −2.0 (47.8 / 28.4) | 15.6 / 2.7 (60.1 / 36.9) | 20.8 / 8.1 (69.4 / 46.6) | 23.3 / 12.5 (73.9 / 54.5) | 26.5 / 17.2 (79.7 / 63.0) | 27.7 / 18.2 (81.9 / 64.8) | 24.0 / 14.1 (75.2 / 57.4) | 18.6 / 7.1 (65.5 / 44.8) | 12.8 / 1.2 (55.0 / 34.2) | 6.2 / −2.8 (43.2 / 27.0) |
| Kuzumaki | 0.0 / −8.2 (32.0 / 17.2) | 1.0 / −8.0 (33.8 / 17.6) | 5.3 / −4.5 (41.5 / 23.9) | 12.7 / 0.8 (54.9 / 33.4) | 19.1 / 6.3 (66.4 / 43.3) | 22.6 / 11.3 (72.7 / 52.3) | 25.7 / 16.2 (78.3 / 61.2) | 26.7 / 17.0 (80.1 / 62.6) | 22.4 / 12.4 (72.3 / 54.3) | 16.2 / 5.2 (61.2 / 41.4) | 9.5 / −0.5 (49.1 / 31.1) | 2.8 / −5.2 (37.0 / 22.6) |
| Shizukuishi | 0.8 / −7.3 (33.4 / 18.9) | 1.7 / −6.9 (35.1 / 19.6) | 5.6 / −3.4 (42.1 / 25.9) | 13.5 / 1.9 (56.3 / 35.4) | 19.1 / 7.5 (66.4 / 45.5) | 23.0 / 13.2 (73.4 / 55.8) | 25.9 / 17.4 (78.6 / 63.3) | 27.7 / 18.5 (81.9 / 65.3) | 23.2 / 13.4 (73.8 / 56.1) | 17.1 / 5.9 (62.8 / 42.6) | 10.0 / 0.4 (50.0 / 32.7) | 3.7 / −3.6 (38.7 / 25.5) |
| Yuda | 0.4 / −5.9 (32.7 / 21.4) | 1.5 / −5.7 (34.7 / 21.7) | 5.2 / −3.2 (41.4 / 26.2) | 12.2 / 0.9 (54.0 / 33.6) | 18.9 / 7.3 (66.0 / 45.1) | 22.5 / 12.8 (72.5 / 55.0) | 25.7 / 17.6 (78.3 / 63.7) | 27.2 / 18.5 (81.0 / 65.3) | 23.1 / 14.1 (73.6 / 57.4) | 16.8 / 7.0 (62.2 / 44.6) | 9.7 / 0.9 (49.5 / 33.6) | 2.8 / −3.2 (37.0 / 26.2) |
| Kuzakai | −2.7 / −11.2 (27.1 / 11.8) | −1.6 / −10.8 (29.1 / 12.6) | 2.3 / −7.1 (36.1 / 19.2) | 9.5 / −0.9 (49.1 / 30.4) | 16.1 / 4.7 (61.0 / 40.5) | 19.7 / 9.7 (67.5 / 49.5) | 23.1 / 15.3 (73.6 / 59.5) | 24.1 / 15.8 (75.4 / 60.4) | 19.9 / 11.1 (67.8 / 52.0) | 13.6 / 3.5 (56.5 / 38.3) | 6.9 / −2.1 (44.4 / 28.2) | 0.3 / −7.4 (32.5 / 18.7) |

## Economy

Iwate's industry is concentrated around Morioka and specializes in semiconductor and communications manufacturing.
As of March 2011, the prefecture produced 3.9% of Japan's beef and 14.4% of broiler chickens. In 2009, 866 tons of dolphins and whales were harvested off the coast of Iwate, accounting for more than half of Japan's total catch of 1,404 tons.

## Demographics

As of October 1, 2022, Iwate Prefecture had a population of 1,180,595. Consistent with population trends across Japan, Iwate has experienced a slow, but steady decline in growth since the end of World War II with a major contributing factor being an aging population. As of October 2019, 33.1% of the population was over 65 with 15.4% aged between 65 and 74 and 17.7% over 75. Moreover, the 1950 census saw the most births in the prefecture with 45,968 reported, but since then there has been a major decline to only 7,220 births from October 2018 to September 2019. This is in contrast to the 17,681 deaths recorded during the same period. Finally, Iwate has a net negative migration rate (-2.8) with 21,265 permanently leaving the prefecture and 16,795 entering.

## Notable people from Iwate

The web site of the Iwate prefecture provides the summarized biographies of 'Famous Iwate people' in Japanese and English.
* Gege Akutami (born 1992), manga artist and author of Jujutsu Kaisen
* The Great Sasuke (born 1969), professional wrestler and politician
* Yusei Kikuchi (born 1991), pitcher for the Los Angeles Angels
* Taka Michinoku (born 1973), professional wrestler
* Milano Collection A. T. (born 1976), professional wrestler
* Shohei Ohtani (born 1994), two-way player for the Los Angeles Dodgers
* Roki Sasaki (born 2001), pitcher for the Los Angeles Dodgers
* Chineko Sugawara (1938–2016), actress and voice actress

## Natural disasters

On 13 July 869, a magnitude 8.6 earthquake and tsunami struck the coast of Iwate.
On 14 November 1230, volcanic activity was reported.
On 2 December 1611, a magnitude 8.1 earthquake and tsunami were reported to have killed over 3,000 horses and people.
In 1662 Morioka and its suburbs were hit by a large flood leaving 1,000 dead.
Volcanic activity was reported on Mt. Iwate on 23 March 1686 and 14 April 1687.
In 1700, a tsunami from the 1700 Cascadia earthquake struck Iwate Prefecture. No records from North America exist, but the event was reconstructed using Japanese records.
On 13 May 1717, The Hanamaki area was struck with a magnitude 7.6 earthquake opening cracks in the ground everywhere. There was also widespread destruction of houses and shops.
In Nanbu-han alone, 49,594 people starved to death in the famine of 1755.
Severe famines continue from 1783 to 1787 and again from 1832 to 1838.
Cholera outbreaks occurred in August 1879, in Miyako and Kuji.
In July 1882, a cholera outbreak in Kamaishi left 302 dead and warnings about drinking water were posted throughout the prefecture.
In April 1884, there was another outbreak of cholera in Kamaishi.
In September 1886, cholera outbreaks throughout Iwate left 312 dead.
On 15 June 1896, at 7:32 am, a magnitude 8.5 earthquake struck offshore. The ensuing tsunami sent waves onto the coast of Iwate at Yoshihama, in what is now Sanriku town, reaching 24 metres (79 ft) in height. 18,158 people died in Iwate alone while some 10,000 homes were destroyed. Fishermen fishing the ocean about 20 miles (32 km) offshore felt nothing, then returning home the next morning found the shore littered with their homes and the bodies of their loved ones.
In September 1899, dysentery spread throughout the prefecture killing 2,070 people.
There was a widespread crop failure due to violent storms in September 1902. Only 32,900 tons of rice were produced in Iwate, just 30% of the previous year's harvest.
In 1905, there was again a massive crop failure due to heavy rain and cold leading to famine in 1906. People were reduced to eating straw, acorns and roots.
In 1919, a small eruption occurred at Nishi-Iwate.
On 3 March 1933, a magnitude 8.1 earthquake struck offshore killing 3,008 people and destroying 7,479 homes. This is the fifth worst earthquake in Japan since 1923.
Small explosions shook Mt. Iwate throughout 1934 and 1935.
In August 1957, there was volcanic activity on Mt. Kurikoma.
There was volcanic activity on Mt. Akita-Komagatake from September to December 1970 with lava flows visible from Morioka.
In 2003, earthquakes struck on 26 May (M7.0 off the coast of Kesennuma, Miyagi Prefecture), 25 July (three jolts of M5.5, 6.2 and 5.3 in southern Iwate) and 26 September (M8.3 in Hokkaido but strongly felt in Iwate).
At 8:43 am on 14 June 2008, Iwate was struck by a 7.2 magnitude earthquake. The epicenter was about 8 kilometres (5.0 mi) underground in Ichinoseki City. Thirteen deaths were reported and massive landshifts occurred in Northern Miyagi and Southern Iwate.
On Friday, 11 March 2011, a magnitude 9.0 earthquake hit this area, triggering a large tsunami and extensive damage. The highest run up of water was measured at over 38 metres (125 ft). The disaster destroyed 9,672 of the prefecture's fishing vessels, damaged 108 of 111 ports, wiped out nearly all of the prefecture's fish processing centers, and caused ¥371.5 billion in damage to the prefecture's fishing industry.
On 26 February 2025, a wildfire began to the southeast of Ōfunato, becoming Japan's largest fire in over 50 years. The fire grew to cover 2,900 ha (7,200 acres), damaged at least 78 buildings, and forced thousands to evacuate. It was declared contained on 9 March.

## Tourism

* Bank of Iwate Red Brick Building
* Chūson-ji
* Iwate Park
* Kanjizaiō-in
* Morioka Hashimoto Museum of Art
* Mōtsū-ji
* Muryōkō-in
* Ryūsen Cave
* Takadachi-gikei-dō
* Tōno City Museum
* A panorama view of Jōdogahama in Miyako city.
* A view of Tono Country Village.
* The Takuboku Ishikawa Memorial Museum in Morioka.
* Geibikei
* Genbikei
* Takkoku-no-Iwaya
* Sansa Odori, a famous summer event in northern Honshu.
The Pokémon Geodude was announced as the tourism ambassador to Iwate Prefecture. The character was chosen for being a rock type Pokémon, since the word for rock, in Japanese, is Iwa (岩 Iwa).

## Transportation
### Rail

Iwate is served by the East Japan Railway Company (JR East) which operates two high-speed shinkansen lines in the prefecture and seven local rail lines. The Tōhoku Shinkansen has stations at Ichinoseki, Oshu, Kitakami, Hanamaki, Morioka, Iwate Town and Ninohe. The Akita Shinkansen starts at Morioka Station and connects to locations in Akita Prefecture.
JR East operates passenger and freight trains on the Tōhoku Main Line or Tōhoku-honsen in Iwate but sold the track north of Morioka to the Iwate Galaxy Railway Line in 2002. The two lines share track with JR still running freight trains and some passenger trains over IGR track and IGR running occasional passenger trains as far south as Hanamaki. There is a large JR freight yard and maintenance facility in Yahaba.
Local lines include the Ofunato Line, the Kitakami Line, the Kamaishi Line, the Tazawako Line, the Yamada Line and the Hanawa Line.
Other lines include the Sanriku Railway which operates two lines along the coast, the North Rias Line and the South Rias Line.

### Road
#### Expressways

* Tōhoku Expressway
* Hachinohe Expressway
* Akita Expressway
* Hachinohe-Kuji Expressway
* Sanriku Expressway
* Kamaishi Expressway

#### National highways

* National Route 4
* National Route 45
* National Route 46
* National Route 106
* National Route 107
* National Route 281
* National Route 282
* National Route 283
* National Route 284
* National Route 340
* National Route 342
* National Route 343
* National Route 346
* National Route 395
* National Route 396
* National Route 397
* National Route 455
* National Route 456
* National Route 457

### Air

* Hanamaki Airport

### Sea

* Kamaishi Port
* Miyako Port
* Ofunato Port