Akuseki-jima volcan

stratovolcans 584 m/ 1,916 ft
Îles Ryūkyū (Japan), 29.46°N / 129.6°E
Condition actuelle: normal / en sommeil (1 sur 5)

Akuseki-jima volcano is a small stratovolcano in the southern Ryukyu Islands, Japan. It forms the island of the same name, which measures 2.5 x 3.2 km in diameter and is surrounded by steep cliffs with beaches present only on the SW and SE sides.
Although no direct date exists, it is plausible that Akuseki-jimais is still active.
Akuseki-jima Island
Only about 80 people live on the small island. Access to Akuseki-jima island is limited to one ferry running twice a week traveling 11 hours from Kagoshima. The island has no sources and depends on rainwater as water source.
July 22, 2009 solar eclipse
It was one of the best observation spots (one of the closest inhabited areas to the location of maximum eclipse duration) for the Solar eclipse of 22 July 2009.

Montrer carte interactive
Style éruptif tipique: explosive
Eruptions du volcan Akuseki-jima: less than 80,000 years ago
Derniers séismes proches: No recent earthquakes

Introduction

The andesitic-dacitic volcano rises about 800m above the sea floor and consists of 2 somma volcanoes, the (probably older) Biro-yama forming the southern half of the island, and Naka-dake in the center and northern half.
Mi-take (Ontake) is a lava dome that had grown inside Naka-dake's caldera and forms the summit of the island.
Omune is the local name of gently sloping plateau on the top of the cliff at the northeastern end of the island. In this area, a ca. 100 m thick dacitic lava flow was sampled and dated recently a recently. The K-Ar ages was <80,000 yrs Before Present, but its youthful morphology and the absence of any tephra layers above suggest it could be as young as the Holocene (i.e. less than 10,000 years old).
The Omune lava flow, after the Kikai rhyolite the most SiO2-rich lava known in the Tokara islands, is the youngest product of Akuseki-jima volcano, forms a low-angle plateau overlying cliffs forming the northern coast.
---
Source: Furuyama K, Daishi M, Nagao K, Eguchi M (2002). "The discovery of young dacite lava in Akuseki-jima Island, Tokara Islands, Japan" Bull Volc Soc Japan (Kazan), v.47, pp 751-755


See also: Sentinel hub | Landsat 8 | NASA FIRMS
Montrer plus
Découvrez notre app gratuite !
Volcanoes & Earthquakes - new app for Android
Android | Version iOS

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:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
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.