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Japan · Lava dome

Niigata-Yake-Yama

Niigata-Yakeyama

Type
Lava dome
Elevation
2400m
Last eruption
1998
Niigata-Yake-Yama
Photo: Alpsdake · Public domain · Wikimedia Commons
Type
Lava dome
Country
Japan
Region
Northwestern Pacific / Northeast Japan Volcanic Arc
Elevation
2400m
Coordinates
36.921, 138.036
Last eruption
1998
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Minor (silicic)
Major rock type
Andesite / Basaltic andesite
Geological summary

Niigata-Yakeyama, one of several Japanese volcanoes named Yakeyama ("Burning Mountain"), is an andesitic-to-dacitic lava dome in Niigata prefecture in west-central Honshu, about 20 km from the coast. The volcano was constructed on a base of Tertiary mountains beginning about 3,100 years ago. Three major eruptions in the past 1,000 years have produced pyroclastic flows and lava flows that traveled mainly down the Hayakawa river valley to the N and NW. The first of these eruptions, in 887 CE (and possibly 989 CE), produced the Hayakawa pyroclastic flow, which reached the coast, and the massive Mae-yama lava flow, which traveled about 6.5 km down the Hayakawa river valley. The summit lava dome was emplaced during the 1361 CE eruption, and the last magmatic eruption took place in 1773 CE. Eruptive activity since 1773 has consisted of relatively minor phreatic explosions from several radial fissures and explosion craters that cut the summit and flanks of the dome.

From Wikipedia

Niigata-Yake-Yama is an active volcano in Honshu, Japan. A large eruption in 887 AD sent pyroclastic flows to the Japan Sea.

Wikipedia · CC BY-SA · Read full article →

Eruption history

20 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
1900 BCE~1705 BCE · 2 eruptions · max VEI ?731 BCE~536 BCE · 1 eruptions · max VEI 3634~829 · 1 eruptions · max VEI ?829~1024 · 2 eruptions · max VEI 41218~1413 · 1 eruptions · max VEI 31608~1803 · 1 eruptions · max VEI 31803~1998 · 12 eruptions · max VEI 21900 BCE925 BCE498291803

Detailed timeline

  1. 1998VEI 1Observed
    1998-03-30 – end unknown
    Upper east flank
  2. 1997VEI 1Observed
    1997-10-29 – 1997-12-10
    Upper east flank
  3. 1989VEI 1Observed
    1989-04-19 – 1989-04-26
    Upper East flank
  4. 1987VEI 1Observed
    1987-04-25 – end unknown
  5. 1983VEI 1Observed
    1983-04-14 – 1983-04-15
  6. 1974VEI 2Observed
    1974-07-28 – 1974-07-28
    WNW and NNE side of lava dome
  7. 1963VEI 1Observed
    1963-02-14 – end unknown
  8. 1963VEI 1Observed
    1963-07-10 – 1963-09-30
  9. 1962VEI 1Observed
    1962-03-14 – 1962-03-14
  10. 1949VEI 2Observed
    1949-02-05 – 1949-09-13
    NE-SW fissures, both sides of summit
  11. 1854VEI ?Observed
    1854-07-02 – end unknown
    NW flank
  12. 1852VEI 2Observed
    1852-11-01 – 1853-05-16
    NW flank
  13. 1773VEI 3Observed
    1773 – end unknown
  14. 1361VEI 3Observed
    1361 – end unknown
  15. 989VEI ?Observed
    989 – end unknown
  16. 887VEI 4Observed
    887 – end unknown
  17. 813VEI ?Observed
    813 – end unknown
  18. 700 BCE (±100 yrs)VEI 3Geological estimate
    700 BCE – end unknown
  19. 1750 BCEVEI ?Geological estimate
    1750 BCE – end unknown
  20. 1900 BCE (±1050 yrs)VEI ?Geological estimate
    1900 BCE – end unknown

Nearby volcanoes

External links

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