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28 avril - 3 mai 2018: Le Joyau Égéen caché: l'Île de Milos - Île de Milos, Grèce
12-20 mai 2018: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
19-27 mai 2018: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
9-17 juin 2018: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
24 juin - 1 juil. 2018: Le Grand Lac de Lave du Nyiragongo - République démocratique du Congo et Rwanda
12-14 juil. 2018: Spécial Volcan Krakatau - Le Krakatau, détroit de la Sonde
15-31 juil. 2018: Volcans et Épices - Mer des Moluques (Sulawesi, Indonésie)
22-27 juil. 2018: Expédition au Volcan Yasur - Vanuatu (Mer du Sud)
22 juil. - 5 août 2018: Feu au Paradis des Mers du Sud - Vanuatu - Vanuatu (Mer du Sud)
26 sept. - 10 oct. 2018: Feu au Paradis des Mers du Sud - Vanuatu - Vanuatu (Mer du Sud)
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Diaporama
News & updates
Satellite image of Sakurajima volcano on 21 Apr 2018
samedi, avril 21, 2018
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ... [details]
Eruption of Mount Io yesterday (image: JMA)
vendredi, avril 20, 2018
An explosive eruption occurred at Kirishima yesterday, but this time not from its recently active Shinmoedake, but neighboring Mount Io cone located on the Ebino Highland near the visitor center. ... [details]
Satellite image of Sakurajima volcano on 20 Apr 2018
vendredi, avril 20, 2018
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ... [details]
Satellite image of Sakurajima volcano on 19 Apr 2018
jeudi, avril 19, 2018
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ... [details]
jeudi, avril 19, 2018
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ... [details]
Map of volcanoes in Japan (USGS)
Map of volcanoes in Japan (USGS)
 

Volcans en Japon (118 volcans)

Japan has over 100 active volcanoes, more than almost any other country and accounts alone for about 10 % of all active volcanoes in the world. The volcanoes belong to the Pacific Ring of Fire, caused by subduction zones of the Pacific plate beneath continental and other oceanic plates along its margins.
Japan's volcanic arcs and tectonic setting
Japan is located at the junction of 4 tectonic plates - the Pacific, Philippine, Eurasian and North American plates, and its volcanoes are mainly located on 5 subduction-zone related volcanic arcs where the Pacific Plate descends under the North American Plate along the Kuril Trench and the Japan Trench and underneath the Philippine Sea Plate along the Izu-Bonin Trench. The Philippine Plate itself subducts beneath the Eurasian Plate at the western end, forming the Ryukyu Trench. The principal resulting volcanic ars are:
- Ryukyu Arc and Southwest Honshu Arcs in the south (Philippine plate subducting beneath between the Eurasian Plate),
- Izu-Bonin-Mariana Arc (subduction of Pacific plate beneath Philippine plate)
- Northeast Honshu and Kurile Arc in the north (subduction of Pacific plate beneath the N-American plate)
(more info: www.glgarcs.net/intro/subduction.html)

Besides intense volcanic activity, Japan is one of the places in the world most affected by frequent, and sometimes devastatingly large earthquakes. Its oceanic setting makes it vulnerable for tsunamis as well, as the tragedy of the 11 March 2011 8.9 earthquake and tsunami terrifyingly illustrated.

Record in historically documented eruptions
Japan's first documented historical eruption was from Aso volcano in 553 AD , the year after Buddhism was introduced from Korea. It holds a record in the number of historically documented eruptions.
Japan's largest historical eruption (Towada, 915 AD), 17 Japanese volcanoes had been documented in eruption, more than the rest of the world combined (including 10 in Europe).

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