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Hakone volcano
complex volcano 1438 m / 4,718 ft
Honshu, Japan, 35.23°N / 139.02°E
Current status: restless (2 out of 5)
Hakone webcams / live data | Reports
Hakone volcano books
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
 

Hakone volcano news & activity updates:

Hakone volcano (Japan): small explosion on 29 June, seismic crisis

Wednesday Jul 01, 2015 11:05 AM | BY: T

Following a small explosion in the Owakudani hydrothermal area and increased seismic activity, the alert level of the volcano was raised to 3 (on a scale of 1-5) on 30 June.

A seismic crisis occurred on 29 June starting at 7:36 am (local time). Most tremors were small, but almost 140 quakes occurred within less than half an hour.
Cloud cover prevented direct observations, but a fine ash deposit was detected afterwards on the parking area near Owakudani, indicating that a small explosion had occurred, probably phreatic in origin.
Deformation of the Owakudani valley had reached more than 30 cm uplift since October 2014.
Previous news
Deformation at Hakone volcano (Owakudani valley in circle) during 7-21 May based on interference SAR data (GSI)
Friday, May 22, 2015
Unrest at the Owakudani valley continues. Fumarolic activity has increased drastically. Ground has lifted by up to 15 cm during 7-21 May, or up to 20 cm when compared to early October last year. [more]
Earthquakes under Hakone volcano (JMA)
Thursday, May 07, 2015
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. ... [more]
Friday, Mar 01, 2013
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. ... [more]

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