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869 Jōgan Earthquake
The and its associated tsunami struck the area around Sendai in the northern part of Honshu on 9 July 869 (the 26th day of the 5th month in the 11th year of Jōgan). The earthquake had an estimated magnitude of at least 8.4 on the moment magnitude scale, but may have been as high as 9.0, similar to the 2011 Tōhoku earthquake and tsunami. The tsunami caused widespread flooding of the Sendai plain. In 2001, researchers identified sand deposits in a trench more than from the coast as coming from this tsunami. Name In Japan this earthquake is commonly called . Jōgan is the Japanese era name for the period from 859 to 877 AD. But during the era other large earthquakes also occurred in Japan, so the name of the geographic epicenter and the anno domini year number when the quake occurred are sometimes added. Sanriku in this context is a name roughly corresponding to the Pacific front northeastern coastal area of Honshu island. The Japanese history text, '' Nihon Sandai Jitsuroku' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miyagi Prefecture
is a prefecture of Japan located in the Tōhoku region of Honshu. Miyagi Prefecture has a population of 2,305,596 (1 June 2019) and has a geographic area of . Miyagi Prefecture borders Iwate Prefecture to the north, Akita Prefecture to the northwest, Yamagata Prefecture to the west, and Fukushima Prefecture to the south. Sendai is the capital and largest city of Miyagi Prefecture, and the largest city in the Tōhoku region, with other major cities including Ishinomaki, Ōsaki, and Tome. Miyagi Prefecture is located on Japan's eastern Pacific coast and bounded to the west by the Ōu Mountains, the longest mountain range in Japan, with 24% of its total land area being designated as Natural Parks. Miyagi Prefecture is home to Matsushima Islands, a group of islands ranked as one of the Three Views of Japan, near the town of Matsushima. On 7 April, 2011 the biggest earthquake in Japan occurred. History Miyagi Prefecture was formerly part of the province of Mutsu. 2011 T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyoto
Kyoto (; Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and Kobe. , the city had a population of 1.46 million. The city is the cultural anchor of a substantially larger metropolitan area known as Greater Kyoto, a metropolitan statistical area (MSA) home to a census-estimated 3.8 million people. Kyoto is one of the oldest municipalities in Japan, having been chosen in 794 as the new seat of Japan's imperial court by Emperor Kanmu. The original city, named Heian-kyō, was arranged in accordance with traditional Chinese feng shui following the model of the ancient Chinese capital of Chang'an/Luoyang. The emperors of Japan ruled from Kyoto in the following eleven centuries until 1869. It was the scene of several key events of the Muromachi period, Sengoku period, and the Boshin War, such as the Ōnin War, the Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tagajō
is a city located in Miyagi Prefecture, Japan. , the city had an estimated population of 62,869 in 27,869 households, and a population density of 3,200 people per km². The total area of the city is . The city was named after Taga Castle, the capital of Mutsu Province from the Nara period. Geography Tagajō is in the coastal plains of east-central Miyagi Prefecture, bordered by the Pacific Ocean to the east. Neighboring municipalities Miyagi Prefecture *Sendai *Shiogama * Shichigahama *Rifu Climate Tagajō has a humid climate (Köppen climate classification ''Cfa'') characterized by mild summers and cold winters. The average annual temperature in Tagajō is 12.3 °C. The average annual rainfall is 1225 mm with September as the wettest month. The temperatures are highest on average in August, at around 24.8 °C, and lowest in January, at around 1.1 °C. Demographics Per Japanese census data, the population of Tagajō has recently plateaued after a long per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bōsō Peninsula
The is a peninsula that encompasses the entirety of Chiba Prefecture on Honshu, the largest island of Japan. It is part of the Greater Tokyo Area. It forms the eastern edge of Tokyo Bay, separating it from the Pacific Ocean. The peninsula covers approximately . Description The Bōsō Peninsula is defined by the Pacific Ocean to its east and south, Tokyo Bay to the west, and the Edo and Tone rivers to the north. The Bōsō Hill Range forms the backbone of the south of the peninsula, and much of the area is hilly. Mount Atago in Minamibōsō and Kamogawa is the highest point on the peninsula with an altitude of . From south to north the Bōsō Hill Range gives way to the Shimōsa Plateau, which covers much of the area of northern Chiba Prefecture, and ends in the lower areas around the Tone River. The northern and western parts of the Bōsō Peninsula are highly urbanized. The Shimōsa Plateau and the coastal lowlands and interior river valleys are chiefly used for rice cultiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emishi
The (also called Ebisu and Ezo), written with Chinese characters that literally mean "shrimp barbarians," constituted an ancient ethnic group of people who lived in parts of Honshū, especially in the Tōhoku region, referred to as in contemporary sources. The first mention of the Emishi in literature that can be corroborated with outside sources dates to the 5th century AD, in which they are referred to as (毛人 - "hairy people") in Chinese records. Some Emishi tribes resisted the rule of various Japanese Emperors during the Asuka, Nara and early Heian periods (7th–10th centuries AD). The origin of the Emishi is disputed. They are often thought to have descended from some tribes of the Jōmon people. Some historians believe that they were related to the Ainu people, but others disagree with this theory and see them as a completely distinct ethnicity.Aston, W.G., trans. Nihongi: Chronicles of Japan from the Earliest Times to AD 697. Tokyo: Charles E.Tuttle Co., 1972 (r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tōhoku Region
The , Northeast region, or consists of the northeastern portion of Honshu, the largest island of Japan. This traditional region consists of six prefectures (''ken''): Akita, Aomori, Fukushima, Iwate, Miyagi, and Yamagata. Tōhoku retains a reputation as a remote, scenic region with a harsh climate. In the 20th century, tourism became a major industry in the Tōhoku region. History Ancient & Classical period In mythological times, the area was known as Azuma (吾妻, あづま) and corresponded to the area of Honshu occupied by the native Emishi and Ainu. The area was historically the Dewa and the Michinoku regions, a term first recorded in (654). There is some variation in modern usage of the term "Michinoku". Tōhoku's initial historical settlement occurred between the seventh and ninth centuries, well after Japanese civilization and culture had become firmly established in central and southwestern Japan. The last stronghold of the indigenous Emishi on Honshu and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples
Indigenous peoples are culturally distinct ethnic groups whose members are directly descended from the earliest known inhabitants of a particular geographic region and, to some extent, maintain the language and culture of those original peoples. The term ''Indigenous'' was first, in its modern context, used by Europeans, who used it to differentiate the Indigenous peoples of the Americas from the European settlers of the Americas and from the Sub-Saharan Africans who were brought to the Americas as enslaved people. The term may have first been used in this context by Sir Thomas Browne in 1646, who stated "and although in many parts thereof there be at present swarms of ''Negroes'' serving under the ''Spaniard'', yet were they all transported from ''Africa'', since the discovery of ''Columbus''; and are not indigenous or proper natives of ''America''." Peoples are usually described as "Indigenous" when they maintain traditions or other aspects of an early culture that is assoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1896 Sanriku Earthquake
The was one of the most destructive seismic events in Japanese history. The 8.5 Moment magnitude scale, magnitude earthquake occurred at 19:32 (local time) on June 15, 1896, approximately off the coast of Iwate Prefecture, Honshu. It resulted in two tsunami waves which destroyed about 9,000 homes and caused at least 22,000 deaths. The waves reached a then-record height of ; this would remain the highest on record until waves from the 2011 Tōhoku earthquake and tsunami, 2011 Tōhoku earthquake exceeded that height by more than . From the tsunami records the estimated Tsunami#Magnitude scales, tsunami's magnitude is (Mt = 8.2), much greater than expected for the seismic magnitude estimated from the observed seismic intensity (=7.2). This earthquake is now regarded as being part of a distinct class of seismic events, the tsunami earthquake. Geology The epicenter lies just to the west of the Japan Trench, the surface expression of the west-dipping subduction zone. The trench form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Plate
The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. At , it is the largest tectonic plate. The plate first came into existence 190 million years ago, at the triple junction between the Farallon, Phoenix, and Izanagi Plates. The Pacific Plate subsequently grew to where it underlies most of the Pacific Ocean basin. This reduced the Farallon Plate to a few remnants along the west coast of North America and the Phoenix Plate to a small remnant near the Drake Passage, and destroyed the Izanagi Plate by subduction under Asia. The Pacific Plate contains an interior hot spot forming the Hawaiian Islands. Boundaries The north-eastern side is a divergent boundary with the Explorer Plate, the Juan de Fuca Plate and the Gorda Plate forming respectively the Explorer Ridge, the Juan de Fuca Ridge and the Gorda Ridge. In the middle of the eastern side is a transform boundary with the North American Plate along the San Andreas Fault, and a boundary with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subduction
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries. Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Once initiated, stable subduction is driven mostly by the negative buoyancy of the de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Plate
The North American Plate is a tectonic plate covering most of North America, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores. With an area of , it is the Earth's second largest tectonic plate, behind the Pacific Plate (which borders the plate to the west). It extends eastward to the Mid-Atlantic Ridge and westward to the Chersky Range in eastern Siberia. The plate includes both continental and oceanic crust. The interior of the main continental landmass includes an extensive granitic core called a craton. Along most of the edges of this craton are fragments of crustal material called terranes, which are accreted to the craton by tectonic actions over a long span of time. It is thought that much of North America west of the Rocky Mountains is composed of such terranes. Boundaries The southern boundary with the Cocos Plate to the west and the Caribbean Plate to the east is a transform fault, represented by the Swan Islands Transform Fault unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okhotsk Plate
The Okhotsk Plate is a minor tectonic plate covering the Kamchatka Peninsula, Magadan Oblast, and Sakhalin Island of Russia; Hokkaido, Kantō and Tōhoku regions of Japan; the Sea of Okhotsk, as well as the disputed Kuril Islands. It was formerly considered a part of the North American Plate, but recent studies indicate that it is an independent plate, bounded on the north by the North American Plate. The boundary is a left-lateral moving transform fault, the Ulakhan Fault originating from a triple junction in the Chersky Range. On the east, the plate is bounded by the Pacific Plate at the Kuril–Kamchatka Trench and the Japan Trench, on the south by the Philippine Sea Plate at the Nankai Trough, on the west by the Eurasian Plate, and on the southwest by the Amurian Plate. Geology The boundary between Okhotsk Plate and Amurian Plate might be responsible for many strong earthquakes that occurred in the Sea of Japan as well as in Sakhalin Island, such as the MW7.1 ( MS7.5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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