Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
29 May - 3 Jun: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
3-18 Jun: From Krakatau to Bali - Java (Indonesia)
4-11 Jun: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
10-18 Jun: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
16 Jun: Etna Trekking Tour - Etna volcano
17 Jun: Etna Trekking Tour - Etna volcano
8-23 Jul: From Krakatau to Bali - Java (Indonesia)
10-14 Jul: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
10-24 Jul: Volcanoes in the South Sea - Vanuatu (South Sea)
14-23 Jul: The Volcanoes of Ambrym - the Grand Traverse - Vanuatu (South Sea)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News
Depth vs time of the recent earthquakes west of Miyake island
Tuesday, Apr 23, 2013
The earthquake swarm that started on 17 April and included a magnitude 5.6 quake has been decreasing and remained at the same depths at around 10-15 km just west off the island. ... [more]
Map of recent quakes near Miyake-Shimy volcano
Friday, Apr 19, 2013
A strong earthquake swarm, presumably caused by a magmatic intrusion, has started Wednesday at Miyake volcano in the Japanese Izu Islands. ... [more]

Miyake-shima volcano

stratovolcano 815 m / 2,674 ft
Izu Islands, Japan, 34.08°N / 139.53°E
Current status: restless (2 out of 5)
Miyake-shima webcams / live data
Miyake-shima volcano books
Last update: 23 Apr 2013
Typical eruption style: explosive
Miyake-shima volcano eruptions: 2010 (April-July), 2009 (April), 2008 (May), 2008 (Jan), 2006 (Aug), 2006 (Feb), 2005, 2000-04, 1983, 1962, 1940, 1874, 1835, 1811, 1763-69, 1712-14, 1709, 1643, 1595, 1535, 1469, 1154, 1085
TimeMag. / DepthDistanceLocation
Tue, 16 May
Tue, 16 May 21:09 UTCM 2.7 / 100.2 km26 kmFAR S OFF BOSO PENINSULA
Sat, 6 May
Sat, 6 May 02:40 UTCM 2.8 / 138.5 km19 kmFAR S OFF BOSO PENINSULA
Sun, 30 Apr
Sun, 30 Apr 21:37 UTCM 2.8 / 12.7 km16 kmNEAR MIYAKEJIMA ISLAND
Fri, 28 Apr
Fri, 28 Apr 00:37 UTCM 2.5 / 13.1 km35 kmNEAR MIYAKEJIMA ISLAND
View all recent quakes
Miyake-jima (三宅島 Miyakejima) is an active stratovolcano in the northern Izu Islands, about 200 km south of Tokyo. It forms a 8 km diameter circular island and is one of the most frequently active volcanoes in the island chain. It typically erupts every 10-30 years. The last series of eruptions started in June 2000 after 17 years of repose.
The volcano has had many eruptions both from summit and flank vents, including submarine eruptions. Many eruptions have caused considerable damage to the island.

Background:

The island of Miyake-jima is the submerged part of a low-angle stratovolcano that rises about 1100 m from the sea floor. It is mainly basaltic and has small summit calderas, one which is 3.5 km wide and was formed during a major explosive eruption about 2500 years ago.
There are numerous fissure vents on its flanks and flank cones, craters and maars near the coast.
A 300 years long pause in activity ended in 1469. Since then, activity was mostly from flank fissures and sometimes accompanied by small summit eruptions. A new eruptive phase started in 2000, during which a new 1.6 km wide summit caldera formed by repeated subsidence of the crater.
(Source: Smithsonian / GVP volcano information)

2000 eruptions and formation of a new summit caldera
After a repose interval of 17 years, a series of new eruptions started at Miyakejima in 2000. The eruption was preceded by strong deformation and intense earthquake swarms: Between 26 June and 21 July 2000 there were 17,500 earthquakes, including 5,480 which could be felt by residents. A magnitude 6.4 earthquake on 1 July 2000 killed one person by rockfall on Kozu-shima.
An explosive eruption occurred on 7 July 2000, prompting the evacuation of the island on 1 September, and people were first allowed to return on 1 February 2005. During the period 8 July-31 August 2000, the volcano produced large phreatic eruptions, ash plumes up to 15 km high, pyroclastic flows, ash fall and a series of gradual concentric crater collapses. By October 2000, a new 1.6-km-wide summit caldera had slowly formed by subsidence and the crater floor had dropped to only 230 m above sea level.
---
Source: Smithsonian / GVP monthly reports

Latest satellite images

 

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.