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News
Sunday, Jun 09, 2019
The previous article is incorrect. The alert level is not at an elevated state. JMA published a "volcanic forecast" because the volcano is now seismically monitored- as several other volcanoes in Japan have become in the last few years as the monitoring operations are expanded. This means that the JMA alert level system can now be applied to this volcano- it has been assigned Level 1- normal. [more]
Saturday, Jun 08, 2019
JMA raised the alert level for the volcano from normal to 1 (the lowest level on a 5-level scale) on 30 May, meaning that the potential of increased activity at the crater is considered elevated. ... [more]
 

Kurikoma volcano

stratovolcano 628 m / 5,341 ft
Honshu, Japan, 38.96°N / 140.79°E
Current status: normal or dormant (1 out of 5) | Reports
Kurikoma volcano books
Last update: 9 Jun 2019 (Correction- alert level not raised)
Typical eruption style: explosive
Kurikoma volcano eruptions: 1950, 1946, 1944, 1783 (?), 1744, 1726 ± 10, 1450 ± 50, 3540 BC ± 1000 years No recent earthquakes
TimeMag. / DepthDistanceLocation
Kurikoma volcano is a complex stratovolcano cut by a 4 km wide caldera located in northern Honshu, Japan. It contains the Tsurugi-dake lava dome, a central post-caldera cone, known as the site of former sulfur mining.
Minor phreatic eruptions have occurred in historical time from the central cone.

Background:

Geologic history of the Kurikuma complex:
The earliest eruptions from Higashi-Kurikoma began about 500,000 years agoand produced lava flows to the north and south. This stage was followed by the growth of the Higashi-Kurikoma (East Kurikoma) stratovolcano. The next volcanic edifice to form was Magusa-dake volcano on the western side of the complex, active until about 100,000 years ago. Construction of Magusa-dake's main cone concluded with lava flows to the east, SE, and west.
Daichigamori lava dome and Aguroshi-yama pyroclastic cone are located on the southern flank.
(Source: GVP / Smithsonian Institution)


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