Oshima
(Schichtvulkan) |
Oshima Vulkan (伊豆 大 岛 Izu-Oshima) ist die nördlichste der Izu-Inseln Japan, und einer der weltweit aktivsten Vulkane. Es ist eine meist untergetaucht stratovolcano, dass ein 11 x 13 km Insel bildet.
Oshima bricht sehr häufig, im Durchschnitt alle 1-3 Jahre, aber seit 1990 st... [mehr] |
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To-shima
(Schichtvulkan) |
To-shima volcano (利島, Toshima) in the northern Izu Island chain is a stratovolcano forming a small 2 x 2.4 km island south of Oshima volcano. [mehr] |
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Nii-jima
(Lavadom) |
Nii-jima volcano (新島 Niijima) is a group of 8 rhyolitic lava domes located on the northern and on the southern end of the elongated 11 x 2.5 km island of Niijima. The last eruptions occurred in the 9th century, and there were earthquake swarms beneath the volcano in the 20th cent... [mehr] |
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Kozu-shima
(Lavadom) |
Kozu-shima volcano (神津島, Kōzushima) forms a small 6 x 4 km island consisting of 18 lava domes. The last eruption was in the 9th century AD. [mehr] |
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Miyake-shima
(Schichtvulkan) |
Miyake-jima (三宅島 Miyakejima) is an active stratovolcano in the northern Izu Islands, about 200 km south of Tokyo. It forms a 8 km diameter circular island and is one of the most frequently active volcanoes in the island chain. It typically erupts every 10-30 years. The last serie... [mehr] |
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Mikura-jima
(Schichtvulkan) |
Mikura-jima volcano (御蔵島, Mikurajima) forms a small steep-sided island between Miyake-jima and Hachijo-jima volcanoes in the Izu Islands of Japan. The sparsely populated island is surrounded by 500 m high cliffs on the S and E side.
Mikura-jima volcano contains of a strato... [mehr] |
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Kurose Hole
(submarine volcano) |
Kuruse Hole is a submarine circular caldera located between Mikurajima and Hachijojima in the Izu Islands chain. The caldera is 600-760 deep and 5–7 km wide. A flat-topped rim of a probable somma (pre-caldera cone) rises to within 107 m of the sea surface.
Large amounts of... [mehr] |
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Hachijo-jima
(Stratovulkan) |
Hachijo-jima volcano (八丈島, Hachijōjima) forms an 14 km NW-SE elongated island in the central Izu Islands about 300 km south of Tokyo. It consists of 2 small overlapping, mainly basaltic stratovolcanoes (Higashi-yama and Nishi-yama).
The last eruptions were from the younger ... [mehr] |
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Aoga-shima
(Schichtvulkan) |
Aoga-shima Vulkan (青ヶ島, Aogashima) ist ein stratovolcano bilden eine schöne kleine 2,5 x 3,5 km Insel mit steilen Klippen in der Izu-Inselkette, 300 km südlich von Tokio. Die überwiegend basaltischen Aoga-shima Vulkan enthält einen Komplex Caldera (Ikenosawa Crater) mit einem Dur... [mehr] |
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Myojin Knoll
(submarine volcano) |
Myojin Knoll volcano is a large submarine caldera between Aoga-shima and Bayonnaise Rocks volcanoes in the Izu-Bonin arc. The volcano contains a 6-7 km wide and up to 900 m deep caldera with steep walls.
The highest point on the western caldera rim is a pumice-mantled remna... [mehr] |
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Bayonnaise Rocks
(submarine volcano) |
 Bayonnaise Rocks volcano (ベヨネース列岩 Beyonēsu-retsugan) is an active submarine volcano in the Izu Islands ca. 400 km south of Tokyo. The volcano has a large 8-9 km wide caldera whose highest point forms a few rocks rising just above sea level. The volcano is known for its submarine ... [mehr] |
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Smith Rock
(submarine volcano) |
Smith Rock volcano (also known as Sumisu-jima, or Smith Island) is a steep, 136 m high pinnacle rising vertically above the sea surface. It is part of the southern rim of a 9 km wide submarine caldera belonging to a larger seamount.
Numerous submarine eruptions have occurr... [mehr] |
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Tori-shima
(Schichtvulkan) |
Tori-shima (鳥島 Torishima or Izu-no-Torishima) is a stratovolcano forming a small 2.7 km wide circular island in the southern Izu volcanic chain. Historical eruptions have occurred from summit and flank vents near the north coast as well as from submarine vents.
Several othe... [mehr] |
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Sofugan
(Schichtvulkan) |
Sofugan is a steep vertical pinnacle that rises 99 m above the sea surface south of Tori-shima volcano. Its dramatic shape gave it its nickname "Lot's Wife Rocks."
In 1975, discolored sea water was observed about 500 m north of Sofugan, and the volcano was reclassified as a... [mehr] |
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Suiyo
(submarine volcano) |
Suiyo is an active submarine volcano forming one of the Shichiyo Seamounts, which are named for the 7 days of the week and are located south of Sofugan volcano. Suiyo ("Wednesday") is an basaltic-to-dacitic submarine volcano with a caldera and lava dome that rises about 1400 m fr... [mehr] |
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Mokuyo
(submarine volcano) |
Mokuyo volcano is an active seamount belonging to the 7 Shichiyo Seamounts, named for the 7 days of the week. Mokuyo ("Thursday") contains a basaltic-andesite submarine caldera that rises 1780 m from the sea floor to within 920 m of the sea surface. The summit caldera is 3 x 2.3 ... [mehr] |
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Doyo
(submarine volcano) |
Doyo Seamount is the southernmost of the 7 Shichiyo Seamounts, named for the 7 days of the week. Doyo ("Saturday") is a basaltic-andesite submarine caldera that rises 2340 m from the sea floor to within 860 m of the sea surface.
It has a large horseshoe-shaped 3 x 10 km wi... [mehr] |
