Mount Nasu
Group of complex volcanoes on the island of Honshu
Mount Nasu
On the border of Nasushiohara and Nasu of Tochigi Prefecture, Nishigō, Nishishirakawa of Fukushima Prefecture, Japan
Mount Nasu (那須岳, Nasu-dake) 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.
Major peaks
Mount Nasu has the following major peaks:
- Sanbonyari Peak – 1916.9 m
- Chausu Peak – 1915 m
- Asahi Peak – 1896 m
- Minamigatsusan – 1776 m
- Kuro-oya Peak – 1589 m
These peaks are known collectively as Nasu Five Peaks (那須5岳, Nasu-Go-Take).
Climate
Climate data for Mount Nasu (1991−2020 normals, extremes 1976−present) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °C (°F) | 12.7 (54.9) | 16.8 (62.2) | 21.1 (70.0) | 26.8 (80.2) | 29.6 (85.3) | 30.3 (86.5) | 31.8 (89.2) | 32.2 (90.0) | 29.5 (85.1) | 24.6 (76.3) | 20.0 (68.0) | 17.4 (63.3) | 32.2 (90.0) |
Mean daily maximum °C (°F) | 1.9 (35.4) | 2.7 (36.9) | 6.8 (44.2) | 13.0 (55.4) | 18.2 (64.8) | 20.7 (69.3) | 24.3 (75.7) | 25.4 (77.7) | 21.4 (70.5) | 16.1 (61.0) | 10.9 (51.6) | 5.1 (41.2) | 13.9 (57.0) |
Daily mean °C (°F) | −1.7 (28.9) | −1.3 (29.7) | 2.0 (35.6) | 7.8 (46.0) | 13.0 (55.4) | 16.4 (61.5) | 20.2 (68.4) | 21.0 (69.8) | 17.3 (63.1) | 11.8 (53.2) | 6.4 (43.5) | 1.1 (34.0) | 9.5 (49.1) |
Mean daily minimum °C (°F) | −5.3 (22.5) | −5.3 (22.5) | −2.4 (27.7) | 2.6 (36.7) | 7.7 (45.9) | 12.3 (54.1) | 16.7 (62.1) | 17.5 (63.5) | 13.8 (56.8) | 7.7 (45.9) | 2.0 (35.6) | −2.6 (27.3) | 5.4 (41.7) |
Record low °C (°F) | −11.7 (10.9) | −12.1 (10.2) | −10.4 (13.3) | −6.0 (21.2) | −2.3 (27.9) | 3.6 (38.5) | 8.7 (47.7) | 8.9 (48.0) | 3.2 (37.8) | −1.2 (29.8) | −6.1 (21.0) | −10.2 (13.6) | −12.1 (10.2) |
Average precipitation mm (inches) | 52.6 (2.07) | 42.8 (1.69) | 101.6 (4.00) | 139.6 (5.50) | 180.8 (7.12) | 220.5 (8.68) | 305.7 (12.04) | 303.9 (11.96) | 305.3 (12.02) | 212.6 (8.37) | 89.2 (3.51) | 60.1 (2.37) | 2,014.7 (79.33) |
Average snowfall cm (inches) | 103 (41) | 79 (31) | 45 (18) | 7 (2.8) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 4 (1.6) | 55 (22) | 293 (116.4) |
Average precipitation days (≥ 1.0 mm) | 9.1 | 8.3 | 10.4 | 11.3 | 12.1 | 15.9 | 18.3 | 17.0 | 14.8 | 11.5 | 8.3 | 9.1 | 146.1 |
Average snowy days (≥ 1 cm) | 11.5 | 8.8 | 5.5 | 0.6 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 | 5.9 | 32.7 |
Mean monthly sunshine hours | 131.0 | 129.0 | 156.4 | 170.4 | 169.1 | 108.8 | 98.7 | 115.3 | 98.9 | 115.1 | 130.1 | 132.6 | 1,555.2 |
Source 1: JMA[3] | |||||||||||||
Source 2: JMA[4] |
Eruption
It is estimated that Mount Nasu started erupting 600 thousand years ago. The eruption started from the north end of the mountain range, at Kashi-Asahi Peak. Only Chausu Peak is active today.
Access
- Nasu Sancho Station of Nasu Ropeway
- Sandogoya Onsen Bus Stop of Kanto Transportation
Gallery
- Chausu lava dome and Asahi Peak
- Chausu lava dome and fumes
- Asahi Peak
- West view from Sanbonyari Peak
- Sanbonyari Peak and snow in summer
- At the Sanbonyari Peak
- Topographic map
- To Asahi Peak
References
- ^ "Topographic map of Mount Nasu". opentopomap.org. Retrieved 2023-06-12.
- ^ "Nasudake". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-24.
- ^ 観測史上1~10位の値(年間を通じての値). JMA. Retrieved February 18, 2022.
- ^ 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved February 18, 2022.
External links
Wikimedia Commons has media related to Mount Nasu.
- Nasudake – Japan Meteorological Agency (in Japanese)
- "Nasudake: National catalogue of the active volcanoes in Japan" (PDF). – Japan Meteorological Agency
- Nasudake – Geological Survey of Japan
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- Mt. Shari
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Jōshinetsu region
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- Mt. Naeba
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Hida Mountains (Northern Alps) | |
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Kiso Mountains (Central Alps) | |
Akaishi Mountains (Southern Alps) | |
Others |
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- Kyūya Fukada
- List of mountains in Japan
- Three-thousanders (in Japan)
- Media related to 100 Famous Japanese Mountains at Wikimedia Commons