Takaharayama

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 36.9°N
  • 139.777°E

  • 1795 m
    5888 ft

  • 283143
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Takaharayama.

The Global Volcanism Program has no Weekly Reports available for Takaharayama.

The Global Volcanism Program has no Bulletin Reports available for Takaharayama.

Takaharayama is a small stratovolcano with lava domes located SW of Nasudake volcano and NNW of Utsunomiya city in central Honshu. The basaltic-to-dacitic volcano lies within the Shiobara caldera, which was formed during the late Pleistocene at the time of the eruption of the Otawara pumice-flow deposit. The latest dated eruption of Takahara took place about 6500 years ago along the NW-SE-trending Yumoto-Shiobara fissure system within the caldera. Eruptions along this fissure initially produced the phreatic Takahara-Uenohara tephra deposit, which was distributed primarily to the east. The symmetrical Fujiyama lava dome, one of many conical volcanoes named after Japan's renowned Mount Fuji, was extruded at the end of the eruption.

Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
4570 BCE (?) Unknown Confirmed 4 Radiocarbon (corrected) Fuji-san lava dome, Tk-Ue tephra

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.



Synonyms
Takahara


Craters
Feature Name Feature Type Elevation Latitude Longitude
Shiobara Caldera
Yumoto-Shiobara Fissure vent


Domes
Feature Name Feature Type Elevation Latitude Longitude
Fujiyama Dome


Thermal
Feature Name Feature Type Elevation Latitude Longitude
Arayu Hot Spring Hot Spring
Forested Fuji-san lava dome, one of many conical volcanoes named after Japan's renowned Mount Fuji, is the youngest product of Takahara volcano. This small stratovolcano with associated lava domes is located SW of Nasu volcano. The latest dated eruption of Takahara took place about 6500 years ago. Eruptions along a NW-SE-trending fissure produced phreatic tephra and were followed by emplacement of the Fuji-san lava dome and a cryptodome (an area of lava intrusion where lava did not reach the surface) on the NW side of the dome.

Photo by Ichio Moriya (Kanazawa University).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Hayakawa Y, 1994. A catalog of the volcanic eruptions during the last 2000 years in Japan. Sci Rpt Fac Education Gumma Univ, (in Japanese with English abs).

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Japan Association Quaternary Research, 1987. Quaternary Maps of Japan: Landforms, Geology, and Tectonics. Tokyo: Univ Tokyo Press.

Japan Meteorological Agency, 2013. National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency.

Kudo T, Hoshizumi H, 2006-. Catalog of eruptive events within the last 10,000 years in Japan, database of Japanese active volcanoes. Geol Surv Japan, AIST, http://riodb02.ibase.aist.go.jp/db099/eruption/index.html.

Nakano S, Yamamoto T, Iwaya T, Itoh J, Takada A, 2001-. Quaternary Volcanoes of Japan. Geol Surv Japan, AIST, http://www.aist.go.jp/RIODB/strata/VOL_JP/.

Okuno M, Moriya I, Tanaka K, Nakamura T, 1997. 6500 cal yr BP eruption of Takahara volcano, north Kanto, central Japan. Bull Volc Soc Japan (Kazan), 42: 393-402 (in Japanese with English abs).

Ono K, Soya T, Mimura K, 1981. Volcanoes of Japan. Geol Surv Japan Map Ser, no 11, 2nd edition, 1:2,000,000.

Suzuki T, 1996. Discharge rates of fallout tephra and frequency of plinian eruptions during the last 400,000 years in the southern Northeast Japan arc. Quat Internatl, 34-36: 79-87.

Takashima I, 1999. Thermoluminescence age determination of Fujisan lava dome, Takahara volcano, North Kanto, Central Japan. Bull Volc Soc Japan (Kazan), 44: 275-277 (in Japanese).

Volcano Types

Stratovolcano
Lava dome(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Andesite / Basaltic Andesite
Basalt / Picro-Basalt
Dacite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
303
4,572
381,490
8,750,106

Affiliated Databases

Large Eruptions of Takaharayama Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.