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Hakkodasan

Photo of this volcano
  • Japan
  • Japan, Taiwan, Marianas
  • Stratovolcano(es)
  • 1550 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 40.659°N
  • 140.877°E

  • 1585 m
    5199 ft

  • 283280
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: June 1997 (BGVN 22:06) Citation IconCite this Report

Volcanogenic carbon dioxide kills soldiers in a topographic depression

On 14 July press reports noted that a party of the Ground Self Defense Force (Japanese army) on a training mission at the N foot of Hakkoda volcano without gas masks accidentally inhaled dangerous gases. In the darkness, some members of the party slipped into a depression (18 m long, 11 m wide, and 8 m deep), as did those who first tried to rescue them. The men were hospitalized on the evening of 12 July, but three lost their lives. There were no plants within the depression, and leaves on plants around it were dead. The fire station of the Aomori Prefecture mentioned that many holes and depressions emitting sulfurous acidic gases were located around this volcano. Local farmers reported dead animals in these depressions.

According to J. Hirabayashi, who inspected the depression on 13 July, its gases contained as much as 15-20 volume percent CO2 (much higher than the normal value of 0.035%), but no hydrogen sulfide. Delta 13C values were -5.7 for CO2 in the gas from the depression collected on 13 July, -6.1 for CO2 dissolved in water samples from the Hakkoda hotsprings, and -6.0 in the springwater from near the depression, collected on 14 July. These results indicated a magmatic origin for the CO2-rich gas because delta 13C of CO2 in volcanic gas in Japan ranges from -10 to 0 , whereas that in CO2 gas of organic origin ranges from -30 to -20 .

Information Contacts: Takeshi Ohba and Jun-ichi Hirabayashi, Tokyo Institute of Technology, 2-12-1 O-okayama,Meguro-ku, Tokyo 152, Japan; Setsuya Nakada, Volcano Research Center, Earthquake Research Institute, University of Tokyo, Yayoi 1-1- 1, Bunkyo-ku, Tokyo 113, Japan (URL: http://www.eri.u-tokyo.ac.jp/VRC/index_E.html).

The Global Volcanism Program has no Weekly Reports available for Hakkodasan.

Bulletin Reports - Index

Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

06/1997 (BGVN 22:06) Volcanogenic carbon dioxide kills soldiers in a topographic depression




Information is preliminary and subject to change. All times are local (unless otherwise noted)


June 1997 (BGVN 22:06) Citation IconCite this Report

Volcanogenic carbon dioxide kills soldiers in a topographic depression

On 14 July press reports noted that a party of the Ground Self Defense Force (Japanese army) on a training mission at the N foot of Hakkoda volcano without gas masks accidentally inhaled dangerous gases. In the darkness, some members of the party slipped into a depression (18 m long, 11 m wide, and 8 m deep), as did those who first tried to rescue them. The men were hospitalized on the evening of 12 July, but three lost their lives. There were no plants within the depression, and leaves on plants around it were dead. The fire station of the Aomori Prefecture mentioned that many holes and depressions emitting sulfurous acidic gases were located around this volcano. Local farmers reported dead animals in these depressions.

According to J. Hirabayashi, who inspected the depression on 13 July, its gases contained as much as 15-20 volume percent CO2 (much higher than the normal value of 0.035%), but no hydrogen sulfide. Delta 13C values were -5.7 for CO2 in the gas from the depression collected on 13 July, -6.1 for CO2 dissolved in water samples from the Hakkoda hotsprings, and -6.0 in the springwater from near the depression, collected on 14 July. These results indicated a magmatic origin for the CO2-rich gas because delta 13C of CO2 in volcanic gas in Japan ranges from -10 to 0 , whereas that in CO2 gas of organic origin ranges from -30 to -20 .

Information Contacts: Takeshi Ohba and Jun-ichi Hirabayashi, Tokyo Institute of Technology, 2-12-1 O-okayama,Meguro-ku, Tokyo 152, Japan; Setsuya Nakada, Volcano Research Center, Earthquake Research Institute, University of Tokyo, Yayoi 1-1- 1, Bunkyo-ku, Tokyo 113, Japan (URL: http://www.eri.u-tokyo.ac.jp/VRC/index_E.html).

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

There is data available for 7 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1550 ± 100 years Unknown Confirmed 1 Radiocarbon (corrected) SW flank of O-dake (Jigoku-numa)
1340 ± 75 years Unknown Confirmed 1 Radiocarbon (corrected) SW flank of O-dake (Jigoku-numa)
0450 (?) Unknown Confirmed 1 Radiocarbon (corrected) O-dake, Hk-1 tephra
0050 BCE (?) Unknown Confirmed 1 Radiocarbon (corrected) O-dake, Hk-2 tephra
1150 BCE (?) Unknown Confirmed 1 Radiocarbon (corrected) O-dake, Hk-3 tephra
2250 BCE (?) Unknown Confirmed 3 Radiocarbon (corrected) O-dake, Hk-4 tephra
2850 BCE (?) Unknown Confirmed 2 Radiocarbon (corrected) O-dake, Hk-5 tephra
Deformation History

There is no Deformation History data available for Hakkodasan.

Emission History

There is no Emissions History data available for Hakkodasan.

Photo Gallery

The Hakkoda volcano consists of a group of 14 stratovolcanoes and lava domes south of Mutsu Bay at the northern end of Honshu. The NE rim of an 8-km-wide Pleistocene caldera forms an arcuate ridge across a flat caldera-floor moat NE of the Hakkoda group volcanoes, which bury the SE caldera wall. This view looks from the west towards a northern group of volcanoes, constructed within the caldera. Akakura-dake, Ido-dake, and Hakkoda-Otake (left to right) have well-preserved craters. No historical eruptions are known of the Hakkoda group.

Photo by Takashi Kudo, 1996 (Hokkaido University).
See title for photo information.
The 1552-m-high Takada-Otake, seen here from Suren swamp to its south, is one a group of stratovolcanoes and lava domes forming Hakkoda volcano in northernmost Honshu. Takada-Otake and other nearby volcanoes form a northern group of volcanoes that were constructed within an 8-km-wide caldera. The northern group appears to be younger than a southern volcano group that buries the southern caldera wall.

Photo by Takashi Kudo, 1996 (Hokkaido University).
See title for photo information.
The Hakkoda volcano group forms the skyline SE of the northern Honshu city of Aomori. A group of stratovolcanoes and lava domes was constructed within an 8-km-wide caldera. From left to right, the peaks are Takada-Otake, Akakura-dake, Ido-dake, and Hakkoda-Otake (the highest peak of the complex, at the right center). No historical eruptions are known from the Hakkoda group, although an active fumarolic area and hot springs are present.

Photo by Hisashi Sasaki, 1996 (Hokkaido University).
See title for photo information.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Title: Computer Generated Geologic Map of Japan
Publisher: Geological Survey of Japan
Country: Japan
Year: 1990
Series: No 22
Map Type: Geology
Scale: 1:2,000,000
Map of Computer Generated Geologic Map of Japan
Title: China, Japan, Soviet Union
Publisher: DMA Aerospace Center
Country: Japan, USSR, China
Year: 1988
Series: ONC
Map Type: Topographic
Scale: 1:1,000,000
Map of China, Japan, Soviet Union
Title: Japan, Soviet Union
Publisher: DMA Aerospace Center
Country: Japan, USSR
Year: 1987
Series: TPC
Map Type: Topographic
Scale: 1:500,000
Map of Japan, Soviet Union
Title: (A) Q Maps of Japan Landforms, Geol, Tect: NEast
Publisher: Univ of Tokyo Press & Japan Association for Quaternary Research
Country: Japan
Year: 1987
Map Type: Geology
Scale: 1:1,000,000
Map of (A) Q Maps of Japan Landforms, Geol, Tect: NEast
Publisher: Soviet Ministry
Country: USSR
Year: 1984
Series: B1754
Map Type: Topographic
Scale: 1:2,500,000
Map of
Title: Historical Japan
Publisher: National Geographic Society
Country: Japan
Year: 1984
Series: National Geographic
Map Type: Geographic
Scale: 1:2,982,000
Map of Historical Japan
Title: Geol Map of Japan/ Geol Atlas
Publisher: Geol Survey of Japan
Country: Japan
Year: 1982
Map Type: Geology
Scale: 1:1,000,000
Map of Geol Map of Japan/ Geol Atlas
Title: North Japan
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1980
Series: CIM 1:1 mil
Map Type: Topographic
Scale: 1:1,000,000
Map of North Japan
Title: North Japan
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1980
Map Type: Topographic
Scale: 1:1,000,000
Map of North Japan
Title: North Japan
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1980
Map Type: Topographic
Scale: 1:1,000,000
Map of North Japan
Title: Geological Map of Japan
Publisher: Geological Survey of Japan
Country: Japan
Year: 1978
Map Type: Geology
Scale: 1:1,000,000
Map of Geological Map of Japan
Title: Geological Map of Japan
Publisher: Geological Survey of Japan
Country: Japan
Year: 1978
Map Type: Geology
Scale: 1:1,000,000
Map of Geological Map of Japan
Title: Distribution Map of Hot Springs in Japan
Publisher: Geological Survey of Japan
Country: Japan
Year: 1975
Series: 1:2,000,000
Map Type: Unknown
Scale: 1:2,000,000
Map of Distribution Map of Hot Springs in Japan
Title: (Japanese) Geol map of Japan
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1974
Series: from Natl Atlas Japan
Map Type: Geology
Scale: 1:2,500,000
Map of (Japanese) Geol map of Japan
Title: Landform Classification
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1972
Series: from Natl Atlas Japan
Map Type: Unknown (Land)
Scale: 1:2,500,000
Map of Landform Classification
Title: Land Use
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1972
Series: from Natl Atlas Japan
Map Type: Unknown (Land)
Scale: 1:2,500,000
Map of Land Use
Title: Population Distribution
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1972
Series: from Natl Atlas Japan
Map Type: Unknown
Scale: 1:2,500,000
Map of Population Distribution
Title: River Systems
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1972
Series: from Natl Atlas Japan
Map Type: Unknown
Scale: 1:2,500,000
Map of River Systems
Title: North Japan
Publisher: Geographical Survey Institute of Japan
Country: Japan
Year: 1966
Map Type: Topographic
Scale: 1:1,000,000
Map of North Japan
Title: Aomori
Publisher: US Army Map Service
Country: Japan
Year: 1955
Series: AMS
Map Type: Topographic
Scale: 1:250,000
Map of Aomori
Title: Hachinohe
Publisher: US Army Map Service
Country: Japan
Year: 1955
Series: AMS
Map Type: Topographic
Scale: 1:250,000
Map of Hachinohe
Title: Hakodate
Publisher: US Army Map Service
Country: Japan
Year: 1954
Series: AMS
Map Type: Topographic
Scale: 1:250,000
Map of Hakodate
Title: Hakodate
Publisher: US Army Map Service
Country: Japan
Year: 1943
Series: AMS
Map Type: Topographic
Scale: 1:1,000,000
Map of Hakodate
Smithsonian Sample Collections Database

There are no samples for Hakkodasan in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

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