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Japan · Stratovolcano

Mount Nasu

Nasudake

Type
Stratovolcano
Elevation
1915m
Last eruption
1963
Mount Nasu
Photo: BehBeh · CC BY-SA 3.0 · Wikimedia Commons
Type
Stratovolcano
Country
Japan
Region
Northwestern Pacific / Northeast Japan Volcanic Arc
Elevation
1915m
Coordinates
37.125, 139.963
Last eruption
1963
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite
Geological summary

The Nasudake volcanic group consists of a N-S-trending cluster of stratovolcanoes and lava domes at the north end of the Kanto Plain. Volcanic activity dates back about 500,000 years. Growth of three large basaltic-to-dacitic stratovolcanoes, each lasting about 200,000 years, was followed by construction of three smaller andesitic stratovolcanoes (Asahidake, Futamatayama, and Chausudake). Activity during the last 55,000 years included the collapse of Asahidake ~30-40,000 years ago, producing the massive Ofujisan debris-avalanche deposit, which covers a broad area SE of the volcano. Chausudake, began forming about 16,000 years ago, and has had six known magmatic eruptions, with the latest in 1408-1410 CE that built the summit lava dome formed. These eruptions produced block-and-ash flows and concluded with the extrusion of lava flows. Smaller phreatic eruptions have occurred every few hundred years during the past 5,000 years.

From Wikipedia

Mount Nasu is a group of complex volcanoes located in the northeast part of Nikkō National Park, Japan. The tallest peak is Sanbonyari Peak at a height of 1,916.9 m (6,289 ft). Mount Nasu is one of the 100 Famous Japanese Mountains.

Wikipedia · CC BY-SA · Read full article →

Eruption history

21 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
8550 BCE~8200 BCE · 1 eruptions · max VEI 28200 BCE~7849 BCE · 1 eruptions · max VEI 36097 BCE~5747 BCE · 1 eruptions · max VEI 25747 BCE~5396 BCE · 1 eruptions · max VEI 34695 BCE~4345 BCE · 1 eruptions · max VEI 22242 BCE~1892 BCE · 1 eruptions · max VEI 21541 BCE~1191 BCE · 1 eruptions · max VEI 2840 BCE~490 BCE · 1 eruptions · max VEI 3490 BCE~140 BCE · 1 eruptions · max VEI 2211~561 · 2 eruptions · max VEI 31262~1613 · 4 eruptions · max VEI 31613~1963 · 6 eruptions · max VEI 18550 BCE6097 BCE3293 BCE840 BCE1613

Detailed timeline

  1. 1963VEI 1Method not stated
    1963-07-10 – 1963-07-11
    Chausu-dake
  2. 1963VEI 1Observed
    1963-11-20 – 1963-11-21
    Chausu-dake (west side)
  3. 1960VEI 1Observed
    1960-10-10 – end unknown
    Chausu-dake (50 m north of 1953 vent)
  4. 1953VEI 1Observed
    1953-10-24 – 1953-10-29
    Chausu-dake (1881 crater)
  5. 1881VEI 1Observed
    1881-07-01 – end unknown
    Chausu-dake (west and NW side of summit)
  6. 1846VEI 1Observed
    1846-08-16 – end unknown
    Chausu-dake
  7. 1410VEI 3Observed
    1410-03-05 – end unknown
    Chausu-dake
  8. 1408VEI 3Observed
    1408-02-24 – end unknown
    Chausu-dake
  9. 1404VEI 3Observed
    1404-02-11 – end unknown
    Chausu-dake
  10. 1397VEI 3Observed
    1397-02-17 – end unknown
    Chausu-dake
  11. 330 (±200 yrs)VEI 2Geological estimate
    330 – end unknown
    Chausu-dake
  12. 250 (±200 yrs)VEI 3Geological estimate
    250 – end unknown
    Chausu-dake
  13. 250 BCEVEI 2Geological estimate
    250 BCE – end unknown
    Chausu-dake
  14. 700 BCE (±200 yrs)VEI 3Geological estimate
    700 BCE – end unknown
    Chausu-dake
  15. 1440 BCE (±500 yrs)VEI 2Geological estimate
    1440 BCE – end unknown
    Chausu-dake
  16. 2000 BCE (±1450 yrs)VEI 2Geological estimate
    2000 BCE – end unknown
    Chausu-dake
  17. 4350 BCE (±950 yrs)VEI 2Geological estimate
    4350 BCE – end unknown
    Chausu-dake
  18. 5550 BCE (±500 yrs)VEI 3Geological estimate
    5550 BCE – end unknown
    Chausu-dake
  19. 6050 BCEVEI 2Geological estimate
    6050 BCE – end unknown
    Chausu-dake
  20. 7850 BCEVEI 3Geological estimate
    7850 BCE – end unknown
    Chausu-dake
  21. 8550 BCE (±1500 yrs)VEI 2Geological estimate
    8550 BCE – end unknown
    Chausu-dake

Nearby volcanoes

External links

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