On-take volcan

volcan complexe 3063 m / 10,049 ft
Honshu, Japon, 35.89°N / 137.48°E
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 2 oct. 2018 (steaming, low seismic activity)
Mt.Ontake, viewed from Kuzo Pass of Route 361 (pictrure: Atsushi Ueda / Wiki Commons)
Mt.Ontake, viewed from Kuzo Pass of Route 361 (pictrure: Atsushi Ueda / Wiki Commons)

On-take, or correctly Ontake-san (御嶽山), is a massive stratovolcano and the second highest in Japan. It is located at the southern end of the Northern Japan Alps.
Its first historic eruption occurred in 1979. A landslide in 1984 was not related to an eruption and produced a debris avalanche and lahar running down valleys south and east of the volcano.
On-take volcano is one of the holy mountains of Japan and the destination for religious pilgrimage since 1792.

Montrer carte interactive
Style éruptif tipique: explosive
Eruptions du volcan On-take: 1979-80, 774 AD

Latest nearby earthquakes

HeureMag. / ProfondeurDistance/Lieu
Tue, 27 Jul 2021 (GMT) (1 séisme)
Jul 27, 2021 17:31:05.64 (27 Jul 2021 08:31:05 GMT)
3.2

9.7 km
27 km (17 mi)
7.5 km au sud-est de Takayama, Préfecture de Gifu, Japon
Sun, 18 Jul 2021 (GMT) (1 séisme)
Jul 18, 2021 23:09:06.56 (18 Jul 2021 14:09:06 GMT)
3.7

6.4 km
39 km (24 mi)
27 km à l'ouest de Matsumoto, Préfecture de Nagano, Japon
Sat, 17 Jul 2021 (GMT) (2 séismes)
Jul 17, 2021 21:12:00.68 (17 Jul 2021 12:12:00 GMT)
2.8

233 km
39 km (24 mi)
21 km à l'ouest de Matsumoto, Préfecture de Nagano, Japon
17 juil. 2021 18:07 (GMT +9) (17 Jul 2021 09:07:50 GMT)
4.1

2.8 km
49 km (30 mi)
Takayama Shi, Préfecture de Gifu, 33 km à l'ouest de Matsumoto, Japon

Introduction

On-take's summit cone was built in a largely buried 4 x 5 km caldera. It lies at the southern end of the Norikura volcanic zone, which extends northward through Norikura volcano to Yake-dake volcano.
The older volcanic complex of Ontake consists of at least 4 major stratovolcanoes that were constructed from about 680,000 to about 420,000 years ago, after which On-take was inactive for more than 300,000 years.
The broad, elongated summit of the younger edifice is cut by a series of small explosion craters along a NNE-trending line. Several phreatic eruptions from On-take post-date the roughly 7300-year-old Akahoya tephra from Kikai caldera.
---
Source: On-take volcano information from Smithsonian / GVP

1979 first historic eruption
Around 5:00 on 28 October 1979 the first historic eruption of On-take volcano occurred from a fissure on the southwestern slope of the main peak, Kengamine.
The eruption produced a tephra column of 1500 meters and there was ashfall in Maebashi City 150 km away. A 30 m diameter crater and 9 small craters on a NW-SE lline were formed above the eruptive fissure.

See also: Sentinel hub | Landsat 8
Montrer plus
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

Plus sur VolcanoDiscovery

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.