Onikobe volcano
Updated: Nov 28, 2023 15:35 GMT -
caldera 769 m / 2,523 ft
Honshu (Japan), 38.83°N / 140.7°E
Current status: (probably) extinct (0 out of 5)
Honshu (Japan), 38.83°N / 140.7°E
Current status: (probably) extinct (0 out of 5)
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).
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Onikobe volcano eruptions: about 200,000 years ago
Latest nearby earthquakes
| Time | Mag. / Depth | Distance/Location | ||
| Friday, November 24, 2023 GMT (1 quake) | ||||
| Nov 24, 02:53 pm (GMT +9) (Nov 24, 05:53 GMT) | 2.5 5.8 km | 29 km (18 mi) 20 km northwest of Ichinoseki, Iwate, Japan | ||
| Wednesday, November 22, 2023 GMT (1 quake) | ||||
| Nov 23, 02:23 am (GMT +9) (Nov 22, 17:23 GMT) | 3.6 | 37 km (23 mi) 6.5 km south of Shinjō, Yamagata, Japan | ||
| Thursday, November 16, 2023 GMT (1 quake) | ||||
| Nov 17, 07:27 am (GMT +9) (Nov 16, 22:27 GMT) | 3.3 105 km | 29 km (18 mi) Akita, 35 km southwest of Kitakami, Iwate, Japan | ||
| Wednesday, November 15, 2023 GMT (1 quake) | ||||
| Nov 15, 04:27 pm (GMT +9) (Nov 15, 07:27 GMT) | 2.5 6.5 km | 5.7 km (3.5 mi) 32 km northwest of Furukawa, Ōsaki Shi, Honshu-miyagi-ken, Japan | ||
Background
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.
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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
See also: Sentinel hub | Landsat 8 | NASA FIRMS
