Kinunuma-Nenakusa volcano

Lava dome(s) 2141 m / 7024 ft
Honshu, Japan, 36.88°N / 139.38°E
Current status: (probably) extinct (0 out of 5)

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Typical eruption style: unspecified
Kinunuma-Nenakusa volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene)

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Sun, 25 Jul 2021 (GMT) (1 earthquake)
Jul 25, 2021 19:08:59.88 (25 Jul 2021 10:08:59 GMT)

6.5 km
29 km (18 mi)
Tone-gun, Gunma, 25 km southeast of Shiozawa, Minamiuonuma Shi, Niigata, Japan
Sat, 24 Jul 2021 (GMT) (2 earthquakes)
Jul 24, 2021 16:30:24.07 (24 Jul 2021 07:30:24 GMT)

4.2 km
20 km (12 mi)
Gunma, 47 km east of Tōkamachi, Niigata, Japan
24 Jul 2021 04:34:30 GMT

10 km
15 km (9.3 mi)
Gunma, 46 km northwest of Imaichi, Nikko-shi, Tochigi, Japan
Sun, 18 Jul 2021 (GMT) (2 earthquakes)
Jul 19, 2021 05:05:45.22 (18 Jul 2021 20:05:45 GMT)

4.2 km
20 km (12 mi)
Gunma, 46 km east of Tōkamachi, Niigata, Japan
Jul 18, 2021 22:10:12.27 (18 Jul 2021 13:10:12 GMT)

4.6 km
22 km (14 mi)
Minamiaizu-gun, Fukushima, 46 km east of Tōkamachi, Niigata, Japan


The dacitic Kinunuma volcano produced a lava flow and pyroclastic flow about 0.24 or 0.20 million years ago. The Kinunuma-Kurodahara tephra consists of pumice fall deposits (~5 km3) and mostly-welded pyroclastic flow deposits (less than 1 km3), erupted at 0.20-0.24 Ma. Andesitic and dacitic lava domes of the Nenakusa-yama volcano to the SE were active about 0.3 million years ago.
Source: Smithsonian / GVP volcano information

See also: Sentinel hub | Landsat 8
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