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Steam plume from Nishinoshima on 27 Nov 2014 (Landsat 8 image / NASA Earth Observatory)
Wednesday, Dec 03, 2014
The eruption continues and has been going for more than a year now. It has enlarged the island to 1.89 square km (0.73 square miles). The highest point is now approx. 100 m above sea level. [more]
Landsat 8 satellite image showing the Nishino-shima island on 8 Oct; white lines=contour of old island now covered by fresh lava flows (annotation: Culture Volcan)
Saturday, Oct 11, 2014
The volcanic eruption on the remote island continues. A recent satellite image that the lava flows from the active vent(s) have now covered the older part of the island, the original tiny Nishino-Shima island. ... [more]

Volcanoes of Volcano Islands (15 volcanoes)

Nishino-shima | Kaikata | unnamed | Kaitoku | Kita-Iwo-jima | Iwo-jima | Kita-Fukutokutai | Fukutoku-Okanoba | Minami-Hiyoshi | Nikko | Fukujin | Kasuga | Minami Kasuga | NW Eifuku | Daikoku
Japan's Volcano Island is a string of small islands and seamounts stretching more than 1500 km SSE from Tokyo.
The volcanic chain is part of the Izu-Marianas chain, caused by the westward subduction of the Pacific plate under the Philippines plate.
Nishino-shima
(caldera, submarine volcano)
Nishimo-shima volcano (西之島, literally: Western Island, also: Rosario Island) is the tiny submerged part of a caldera in the northern Volcano Islands of Japan. The small 700 m wide island was significantly enlarged during the last eruption in 1974, which joined several new islands... [more]

Kaikata
(submarine volcano)
Kaikata Seamount is a basaltic-to-dacitic submarine volcano north of Kaitoku Seamount in the Japanese Volcano Islands. Kaitaka mountain rises 2350 m from the sea floor to within 162 m of the sea surface. It has 2 major summit peaks oriented NE-SW, with the SW peak being the highe... [more]

unnamed
(submarine volcano (?))
A possible submarine volcano is located on the Ogasawara Plateau (3200 m depth) about 330 km NEN of Kita-Iwo-jima. A table of possible submarine eruptions by the Japanese Maritime Safety Agency included an entry of observed water discoloration due to submarine eruptions in this a... [more]

Kaitoku
(submarine volcano)
Kaitoku volcano (Kaitoku Kaizan) is a massive active seamount composed of 3 overlapping submarine volcanoes in the Japanese Volcano Islands chain, 130 km NW of Iwo-jima Island.
Its 3 peaks are 13-18 km apart and reach depths of 103 m (SW peak, also known as Nishi-Kaitokub... [more]

Kita-Iwo-jima
(stratovolcano)
Kita-Iwo-jima (北硫黄島 officially Kita-iōtō, also frequently Kita-iōjima, meaning "north sulfur island") is a steep-sided basaltic stratovolcano and forms a small island. It is the northernmost of the Kazan Retto (Volcano Islands) chain, in the center of the Izu-Maranas volcanic arc... [more]

Iwo-jima
(caldera)
Ioto (硫黄島, also known as Iwo-jima) volcano is a triangular-shaped, flat, 8 km long and up to 4.5 wide volcanic island stretching NE-SW. It is surrounded by steep cliffs under the sea, which belong to a 9-km-wide submarine caldera. The volcano is located 1250 km south of Tokyo in ... [more]

Kita-Fukutokutai
(submarine volcano)
Kita-Fukutokutai is a newly recognized active submarine volcano halfway between Iwo-jima and Minami-Iwo-jima islands, ca. 1300 km south of Tokyo. [more]

Fukutoku-Okanoba
(submarine volcano)
Satellite image of Fukutoku-Okanoa volcano (11 Feb 2010, NASA Earth Observatory)Fukutoku-Okanoba is a submarine volcano 5 km NE of the small pyramidal island Minami-iwo-jima in the Japanese Volcano Island chain. Eruptions and submarine hydrothermal activity often cause water discoloration in the area, and during eruptions, the volcano has built several tempo... [more]

Minami-Hiyoshi
(submarine volcano)
Minami-Hiyoshi lies near the SE end of a coalescing chain of youthful seamounts and is the only historically active vent. The morphologically youthful seamount Naka-Hiyoshi (upper right) lies to the NW and Ko-Hiyoshi seamount (left) to the SSE. Image courtesy of HOD Japan Coast Guard (http://www1.kaiho.mlit.go.jp/jhd-E).Minami-Hiyoshi is a submarine volcano in Japan's chain of Volcano Islands, 1300 km south of Tokyo. Periodic water discolouration and water-spouting have been observed from the volcano since 1975, when detonations and an explosion were reported as well. [more]

Nikko
(submarine volcano)
Nikko volcano is a large submarine volcano in the Volcano Islands chain of Japan. Discoloured water above the volcano has been observed almost every year between 1979 and 1990. [more]

Fukujin
(submarine volcano)
Fukujin volcano is one of the largest seamounts of the Marianas arc in Japan's Volcano Island chain. It sometimes has risen to above surface during eruptions creating temporary new islands. Water discoloration and floating pumice above the submarine volcano have been observed fre... [more]

Kasuga
(submarine volcano)
Kasuga volcano is a conical submarine volcano rising 3000 m from the ocean floor to a depth of 598 m, located SE of Fukujin submarine volcano in the Volcano Islands of Japan 1550 km SSE of Tokyo. It is the northernmost of 3 seamounts forming the Kasuga seamounts complex. The Kas... [more]

Minami Kasuga
(submarine volcano)
Minami Kasuga (South Kasuga, or Kasuga 2) is the central of 3 NNE-SSW trending volcanoes forming the Kasuga seamount chain, which trends SSE from the volcanic front of the Izu-Marianas arc.
The volcano rises from about 3000 m depth to within 170 m of the sea surface and is... [more]

NW Eifuku
(submarine volcano)
White smokers in the submarine Champagne hydrothermal field (image courtesy of Submarine Ring of Fire 2006 Exploration, NOAA Vents Program)NW Eifuku is a small submarine volcano in Japan's Volcano Island chain. It has vigorous thermal activity and white smokers at ca. 1500 m depth which were photographed during a NOOA expedition. [more]

Daikoku
(submarine volcano)
Daikoku is a sumbarine volcano with a conical summit in the Japanese Volcano Islands chain. It sits on an elongated E-W-trending ridge SE of Eifuku submarine volcano and rises to within 323 m of the sea surface. It has a crater with a black pool of liquid sulfur discovered in 200... [more]

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