Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
12-18 Apr: Kilauea Volcano Special - Big Island, Hawaiʻi
22-29 Apr: Pearl of the Aegean - Santorini - Santorini Island, Greece
13-21 May: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
20-27(28) May: Fascination Volcano - Santorini Island (Greece)
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)
8-23 Jul: From Krakatau to Bali - Java (Indonesia)
10-24 Jul: Volcanoes in the South Sea - Vanuatu (South Sea)
: spaces available / : guaranteed / : few spaces left / : booked out
 
Random pictures
News

no news in this list.

Mashu volcano

caldera 855 m / 2,805 ft
Hokkaido, Japan, 43.51°N / 144.57°E
Current status: dormant (1 out of 5)
Mashu volcano books
Typical eruption style: explosive
Mashu volcano eruptions: 1080 ± 100 years, 350 AD ± 100 years, 150 AD ± 100 years, 2050 BC ± 40 years, 2800 BC ± 1000 years, 3550 BC ± 40 years, 5550 BC ± 100 years (Plinian eruption, caldera formation) (radiocarbon dated)
TimeMag. / DepthDistanceLocation
Wed, 22 Mar
Wed, 22 Mar 06:57 UTCM 3.0 / 144.8 km13 kmNEMURO REGION
Fri, 17 Feb
Fri, 17 Feb 21:20 UTCM 2.5 / 139.3 km32 kmKUSHIRO REGION
Mashu volcano is a 7 km wide caldera in NE Hokkaido, Japan.
The caldera formed ca. 7000 years ago and truncates a stratovolcano which formed the ESE rim of the large Kutcharo caldera to the west. The steep-walled Mashu caldera contains Lake Mashu (摩周湖 Mashū-ko), known for its very clear water, and is one of the scenic highlights of Hokkaido.

Background:

A small andesitic stratovolcano, Kamuinupuri, was constructed beginning about 4000 years ago in the SE part of of the deep caldera lake. The latest dated eruption of the volcano was a large explosive eruption about 1000 years ago, which created a 1.2 x 1.5 km crater at the summit of Kamuinupuri.
Kamuishu is a small island in the center of Lake Mashu. It is the tip of a mostly submerged dacitic lava dome.


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.