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Hakone volcano
complex volcano 1438 m / 4,718 ft
Honshu, Japan, 35.23°N / 139.02°E
Current status: normal or dormant (1 out of 5) | Reports
Hakone volcano eruptions:
1170 AD ± 100 years (radiocarbon dated), 50 BC (?), 1050 BC (?), 1200 BC (?), 1400 BC ± 100 years, 3700 BC ± 100 years, 6000 BC ± 100 years
Typical eruption style:
phreatic explosions
Last earthquakes nearby
Latest satellite images

Sentinel hub | Landsat 8

Hakone volcano news & activity updates:

Hakone volcano (Japan): seismic unrest and eruption warning for Owakudani valley

Thu, 7 May 2015, 09:21
09:21 AM | BY: T
Earthquakes under Hakone volcano (JMA)
Earthquakes under Hakone volcano (JMA)
An eruption warning has been declared for the volcano, as increased seismic activity under the Ōwakudani hydrothermal field were registered during the past days and could herald sudden phreatic explosions.
The Owakudani valley lies north of the central lava domes inside the Hakone caldera. Seismicity started to increase in late April, consisting mostly of swarms of shallow quakes at 2 and 5 km depth. More intense swarms have occurred during the past days, triggering the Japan Meteorological Agency (JMA) to raise the alert level of the volcano to 2.
Simultaneously, slight deformation of the ground was detected and it appears that fumarolic activity has increased in the past days. Japanese authorities have closed access to the area, which is a popular tourist destination. After the deadly, sudden phreatic eruption of Ontake-san volcano last year, the risk of such eruptions has been taken very seriously.
Whether or not an eruption will occur at Hakone in the near future is impossible to say. Similar seismic crises have occurred in the past with no eruption following. The last known eruption at Hakone occurred in 950 AD.
Previous news
Fri, 1 Mar 2013, 16:38
The latest bulletin of the Japan Meteorological Agency mentions that an increase in seismicity since January 11 near the intra-caldera dome Komagatake is beginning to worry scientists about a possible new activity. ... read all

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