Onikobe

|| English | Deutsch
Modifier & traduire

Actualités

Pas d'article dans la liste.

Onikobe volcan

caldeira 769 m / 2,523 ft
Honshu, Japon, 38.83°N / 140.7°E
Condition actuelle: (probablement) éteint (0 sur 5)

Style éruptif tipique: Explosive
Eruptions du volcan Onikobe: about 200,000 years ago
Derniers séismes proches:

Time	Mag. / Depth	Distance	Location
Mon, 17 Jun
Mon, 17 Jun 20:47 UTC	M 0.6 / 20 km	9 km	宮城県北部 (Miyagi pref.)
Mon, 17 Jun 20:46 UTC	M 0.4 / 18 km	9 km	宮城県北部 (Miyagi pref.)
Sun, 16 Jun
Sun, 16 Jun 21:29 UTC	M 0.8 / 10 km	11 km	岩手県内陸南部 (Iwate Pref.)
Sun, 16 Jun 08:34 UTC	M 0.2 / 23 km	8 km	宮城県北部 (Miyagi pref.)
Sun, 16 Jun 02:24 UTC	M 0.7 / 112 km	36 km	宮城県北部 (Miyagi pref.)

Voir tous

Onikobe volcano is a caldera SW of Kurikoma volcano in northern Honshu, Japan. It is probably extinct, but there are prominent geysers and hot springs in the caldera, known since about 1700 years ago.
In 1938 a new geyser (Benten geyser, or generally called Onikobe geyser) formed at a site where local residents had dug a borehole to create an onsen (hot spring).

Introduction:

Takahinata is a lava dome was last active about 350,000 years ago according to a fission-track date. Onikobe itself was active until about 200,00 years ago.
The caldera of Onikobe is one of the few calderas in Japan that show the classic pattern of ring fractures and a resurgent dome.
---
Sources:
- GVP
- Nishimura, T., et al (2006) "Investigation of the Onikobe geyser, NE Japan, by observing the ground tilt and flow parameters", Earth Planets Space, 58, e21–e24 (eLetter)
- Nomura, J., and Arii, K. (1940) "Study on the new Fukiage geyser of Onikobe
Benten I", Current news of Saito-Hoonkai, No. 168, 1–19

Vérifier nos destinations et excursions !

Cliquez ici pour recommander cette page à un ami