Japan · Stratovolcano
Mikura-jima
Mikurajima
- Type
- Stratovolcano
- Elevation
- 851m
- Last eruption
- -4100
- Type
- Stratovolcano
- Country
- Japan
- Region
- Northwestern Pacific / Izu Volcanic Arc
- Elevation
- 851m
- Coordinates
- 33.874, 139.602
- Last eruption
- -4100
- Tectonic setting
- Subduction zone / Oceanic crust (< 15 km)
- Landform
- Composite
- Major rock type
- Basalt / Picro-basalt
Geological summary
Mikurajima is a small steep-sided island located between the more well-known Miyakejima and Hachijojima volcanoes. Oyama forms the summit of the basaltic-to-andesitic island, which is surrounded by cliffs and dissected on the southern-to-eastern sides. The sparsely populated island consists of a large stratovolcano with lava domes on the SE side. Several small sea stacks are located immediately offshore. Growth of the stratovolcano took place until about 7,000 years ago, and the latest activity occurred about 6,000 years ago, when explosive eruptions and pyroclastic surges accompanied lava dome growth.
From Wikipedia
Mikura-jima (御蔵島) is an inhabited volcanic Japanese island in the Pacific Ocean. The island is administered by Tōkyō Metropolis and is located approximately 200 kilometres (120 mi) south of Tokyo and 19 kilometres (12 mi) south-southeast of Miyakejima. It is one of the Izu Seven Islands group of the seven northern islands of the Izu archipelago. Mikurashima is administratively part of Mikurashima Village under Miyake Subprefecture of Tokyo Metropolis. As of 2009, the island's population was 351. Mikura-shima is also within the boundaries of the Fuji-Hakone-Izu National Park.
Wikipedia · CC BY-SA · Read full article →
Eruption history
2 recordedGlossaryDetailed timeline
- 4100 BCE (±100 yrs)VEI ?Geological estimate4100 BCE – end unknownTsubunegamori & Yasukajigamori domes
- 5050 BCEVEI ?Geological estimate5050 BCE – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.