Most Recent Weekly Report: 6 July-12 July 2022 Cite this Report

JMA reported that after an increase in the number of small volcanic earthquakes with epicenters near Yakedake’s summit in late May, seismicity remained elevated for a few weeks. Seismicity decreased in mid-June and returned to baseline levels. The Alert Level was lowered to 1 (on a scale of 1-5) on 12 July.

Source: Japan Meteorological Agency (JMA)

Most Recent Bulletin Report: February 1995 (BGVN 20:02) Cite this Report

Weekly Reports - Index

2022: May | July

6 July-12 July 2022 Cite this Report

JMA reported that after an increase in the number of small volcanic earthquakes with epicenters near Yakedake’s summit in late May, seismicity remained elevated for a few weeks. Seismicity decreased in mid-June and returned to baseline levels. The Alert Level was lowered to 1 (on a scale of 1-5) on 12 July.

Source: Japan Meteorological Agency (JMA)

25 May-31 May 2022 Cite this Report

JMA raised the Alert Level for Yakedake to 2 (on a scale of 1-5) on 24 May, noting that the number of small volcanic earthquakes with epicenters near the summit began increasing around 2300 the day before. The report also noted that minor inflation near the summit was continuing. Daily small volcanic earthquakes continued to be counted through 31 May.

Source: Japan Meteorological Agency (JMA)

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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.

Synonyms
Iwo-dake | Yake-dake
Cones
Feature Name	Feature Type	Elevation	Latitude	Longitude
Shiratani-yama     Siratani-yama	Stratovolcano	2140 m
Warudani-yama	Stratovolcano	2224 m
Craters
Feature Name	Feature Type	Elevation	Latitude	Longitude
Junga-ike	Crater
Kamibori	Crater
Kurodani	Crater
Nakao-toge	Crater
Shimobori	Crater
Shiramizu	Crater
Taisho	Crater

Basic Data Volcano Number Last Known Eruption Elevation Latitude Longitude 283070 1995 CE 2455 m / 8054 ft 36.227°N 137.587°E Volcano Types Stratovolcano(es) Lava dome(s) Rock Types Major Andesite / Basaltic Andesite Dacite Tectonic Setting Subduction zone Continental crust (> 25 km) Population Within 5 km Within 10 km Within 30 km Within 100 km 995 2,995 156,542 4,595,286

Geological Summary Yakedake rises above the popular resort of Kamikochi in the Northern Japan Alps. The small dominantly andesitic stratovolcano, one of several Japanese volcanoes named Yakedake or Yakeyama ("Burning Peak" or "Burning Mountain"), was constructed astride a N-S-trending ridge between the older volcanoes of Warudaniyama and Shirataniyama. Akandanayama, about 4 km SSW, is a stratovolcano with lava domes that was active into the Holocene. A 300-m-wide crater is located at the summit, and explosion craters are found on the SE and N flanks. Frequent small-to-moderate phreatic eruptions have occurred during the 20th century. On 11 February 1995 a hydrothermal explosion in a geothermal area killed two people at a highway construction site. References The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior. Japan Meteorological Agency, 1996. National Catalogue of the Active Volcanoes in Japan (second edition). Tokyo: Japan Meteorological Agency, 502 p (in Japanese). Japan Meteorological Agency, 2013. National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency. Kuno H, 1962. Japan, Taiwan and Marianas. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 11: 1-332. Miyake Y, Ossaka J, 1998. Steam explosion of Feburary 11th, 1995 at Nakanoyu Hot Spring, Nagano Prefecture, central Japan. Bull Volc Soc Japan (Kazan), 43: 113-121 (in Japanese with English abs). Murai I, 1962. A brief note on the eruption of the Yake-dake volcano of June 17, 1962. Bull Earthq Res Inst, Univ Tokyo, 40: 805-814. Nakano S, Yamamoto T, Iwaya T, Itoh J, Takada A, 2001-. Quaternary Volcanoes of Japan. Geol Surv Japan, AIST, http://www.aist.go.jp/RIODB/strata/VOL_JP/.

Eruptive History

There is data available for 38 Holocene eruptive periods.

Start Date	Stop Date	Eruption Certainty	VEI	Evidence	Activity Area or Unit
1995 Feb 11	1995 Feb 11	Confirmed	1	Observations: Reported	SE flank (Azusa-gawa)
1962 Jun 17	1963 Jun 29	Confirmed	2	Observations: Reported	North flank (Kurodani and Nakao-toge)
1939 Jun 4	1939 Jun 4	Confirmed	2	Observations: Reported
1935 Sep 11	1935 Nov 12	Confirmed	2	Observations: Reported
1932 Feb 6	1932 Feb 6	Confirmed	2	Observations: Reported
1931 Mar 26	1931 Jun 24	Confirmed	2	Observations: Reported
1930 Mar 13	1930 May 11 (?)	Confirmed	2	Observations: Reported	Inkyo-ko
1929 Apr 17	1929 Apr 19	Confirmed	2	Observations: Reported	Summit (Inkyo-ko), NW flank (Kurodani)
1927 Dec 15	1927 Dec 15	Confirmed	2	Observations: Reported	Summit (Inkyo-ko), NW flank (Kurodani)
1927 Jan 23	1927 Apr 29	Confirmed	2	Observations: Reported	Summit (Inkyo-ko), NW flank (Kurodani)
1924 Nov 16	1926 Jan 27	Confirmed	2	Observations: Reported	Summit (Inkyo-ko), NW flank (Kurodani)
1923 Jun 26	1923 Aug 2	Confirmed	2	Observations: Reported	NW flank (Kurodani Crater), Inkyo-ko
1922 Mar 10	1922 Mar 19	Confirmed	1	Observations: Reported	NW flank (Kurodani Crater), Inkyo-ko
1921	Unknown	Confirmed		Observations: Reported
1920	Unknown	Confirmed		Observations: Reported
1919 Nov 1	1919 Nov 1	Confirmed	2	Observations: Reported	NW flank (Kurodani Crater)
1918	Unknown	Confirmed	1	Observations: Reported	Taisho crater
1917	Unknown	Confirmed	1	Observations: Reported	Taisho Crater
1916 Mar 17	1916 Apr 12 (?)	Confirmed	2	Observations: Reported	Taisho Crater, Inkyo-ko
1915 Jun 6	1915 Jul 16	Confirmed	2	Observations: Reported	1911 summit crater, SE flank (Taisho)
1915 Feb	1915 Feb	Confirmed	2	Observations: Reported
1913 Sep 1 (?)	1914 Jan 13	Confirmed	2	Observations: Reported	Inkyo-ko
1912 Feb 11	1912 Sep (?)	Confirmed	2	Observations: Reported
1911 May 6	1911 Aug 23 (?)	Confirmed	2	Observations: Reported	New summit crater (Inkyo-ko)
1910 Nov 11	1910 Nov 30	Confirmed	2	Observations: Reported	Summit crater (Shoga-ike)
1907 Dec 8	1909 Jun 1	Confirmed	2	Observations: Reported	Summit crater (Shoga-ike)
1746 Apr 18	1746 Apr 19	Confirmed	2	Observations: Reported	Ykd-Tu7 tephra
1585 Dec (?)	Unknown	Confirmed	3	Observations: Reported	Ykd-Tu6 tephra
1460 (?)	Unknown	Confirmed	2	Correlation: Tephrochronology	Ykd-Tu5 tephra
1440 (?)	Unknown	Confirmed		Correlation: Tephrochronology	Ykd-Tu4 tephra
1270 (?)	Unknown	Confirmed		Correlation: Tephrochronology	Ykd-Tu3 tephra
0686	Unknown	Confirmed	2	Observations: Reported	Ykd-Tu2 tephra
0630 (?)	Unknown	Confirmed	1	Correlation: Tephrochronology	Ykd-Tu1 tephra
0350 BCE (?)	Unknown	Confirmed	4	Isotopic: 14C (calibrated)
0400 BCE (?)	Unknown	Confirmed		Correlation: Tephrochronology	Ykd-Tl2 tephra
0850 BCE (?)	Unknown	Confirmed		Correlation: Tephrochronology	Ykd-Tl1 tephra
2550 BCE (?)	Unknown	Confirmed	0	Correlation: Tephrochronology
7450 BCE (?)	Unknown	Confirmed	0	Correlation: Tephrochronology	Akandana-yama

Deformation History

There is no Deformation History data available for Yakedake.

Emission History

There is no Emissions History data available for Yakedake.

Photo Gallery

Yakedake rises above Kamikochi resort in the Northern Japan Alps, seen here from Taishoike pond to its ENE. It contains a 300-m-wide crater at the summit and craters are found on the SE and N flanks. Frequent small-to-moderate phreatic eruptions have occurred during the 20th century from both summit and flank vents. An eruption in 1915 produced a lahar that created Taishoike pond and killed the trees in the foreground.

Photo by Lee Siebert, 1977 (Smithsonian Institution). A lahar during an eruption of Yakedake volcano in 1915 dammed the Azusagawa river to form the Taishoike pond, leaving these standing dead trees. The eruption began on 6 June 1915 from a 1-km-long fracture that extended from the summit down the ESE flank where about 50 vents opened, but the principal activity took place at the upper end.

Photo by Lee Siebert (Smithsonian Institution).

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
Title: Japan, South Korea Publisher: DMA Aerospace Center Country: Japan, S Korea Year: 1989 Series: TPC Map Type: Topographic Scale: 1:500,000
Title: Japan, South Korea Publisher: DMA Aerospace Center Country: Japan, S Korea Year: 1988 Series: ONC Map Type: Topographic Scale: 1:1,000,000
Title: (B) Q Maps of Japan Landforms, Geol, Tect: Central Publisher: Univ of Tokyo Press & Japan Association for Quaternary Research Country: Japan Year: 1987 Map Type: Geology Scale: 1:1,000,000
Title: Shirotori Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1985 Map Type: Topographic Scale: 1:50,000
Title: Japan Publisher: DMA Aerospace Center Country: Japan Year: 1985 Series: TPC Map Type: Topographic Scale: 1:500,000
Title: Historical Japan Publisher: National Geographic Society Country: Japan Year: 1984 Series: National Geographic Map Type: Geographic Scale: 1:2,982,000
Title: Hagiwara Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1984 Map Type: Topographic Scale: 1:50,000
Title: Japan Publisher: DMA Aerospace Center Country: Japan Year: 1983 Series: TPC Map Type: Topographic Scale: 1:500,000
Title: Hakusan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1982 Map Type: Topographic Scale: 1:50,000
Title: Geol Map of Japan/ Geol Atlas Publisher: Geol Survey of Japan Country: Japan Year: 1982 Map Type: Geology Scale: 1:1,000,000
Title: Mikkamachi Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1982 Map Type: Topographic Scale: 1:50,000
Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1980 Series: CIM 1:1 mil Map Type: Topographic Scale: 1:1,000,000
Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1980 Map Type: Topographic Scale: 1:1,000,000
Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1980 Map Type: Topographic Scale: 1:1,000,000
Title: Geological Map of Japan Publisher: Geological Survey of Japan Country: Japan Year: 1978 Map Type: Geology Scale: 1:1,000,000
Title: Geological Map of Japan Publisher: Geological Survey of Japan Country: Japan Year: 1978 Map Type: Geology Scale: 1:1,000,000
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
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
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
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
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
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
Title: Central Japan Publisher: Geographical Survey Institute of Japan Country: Japan Year: 1966 Map Type: Topographic Scale: 1:1,000,000
Title: Nagoya Publisher: US Army Map Service Country: Japan Year: 1953 Series: AMS Map Type: Topographic Scale: 1:250,000
Title: Kanazawa Publisher: US Army Map Service Country: Japan Year: 1953 Series: AMS Map Type: Topographic Scale: 1:250,000
Title: Nagoya Publisher: US Army Map Service Country: Japan Year: 1945 Series: AMS Map Type: Road Scale: 1:250,000
Title: Osaka Publisher: US Army Map Service Country: Japan Year: 1945 Series: AMS Map Type: Topographic Scale: 1:1,000,000
Title: Haku-San Publisher: US Army Map Service Country: Japan Year: 1945 Series: AMS Map Type: Topographic Scale: 1:50,000
Title: Kanazawa Publisher: US Army Map Service Country: Japan Year: 1944 Series: AMS Map Type: Topographic Scale: 1:1,000,000

Smithsonian Sample Collections Database

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

External Sites

WOVOdat    Single Volcano View    Temporal Evolution of Unrest    Side by Side Volcanoes	WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore. GVMID Data on Volcano Monitoring Infrastructure The Global Volcano Monitoring Infrastructure Database GVMID, is aimed at documenting and improving capabilities of volcano monitoring from the ground and space. GVMID should provide a snapshot and baseline view of the techniques and instrumentation that are in place at various volcanoes, which can be use by volcano observatories as reference to setup new monitoring system or improving networks at a specific volcano. These data will allow identification of what monitoring gaps exist, which can be then targeted by remote sensing infrastructure and future instrument deployments.
Volcanic Hazard Maps	The IAVCEI Commission on Volcanic Hazards and Risk has a Volcanic Hazard Maps database designed to serve as a resource for hazard mappers (or other interested parties) to explore how common issues in hazard map development have been addressed at different volcanoes, in different countries, for different hazards, and for different intended audiences. In addition to the comprehensive, searchable Volcanic Hazard Maps Database, this website contains information about diversity of volcanic hazard maps, illustrated using examples from the database. This site is for educational purposes related to volcanic hazard maps. Hazard maps found on this website should not be used for emergency purposes. For the most recent, official hazard map for a particular volcano, please seek out the proper institutional authorities on the matter.
MIROVA	Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.
MODVOLC Thermal Alerts	Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
Sentinel Hub Playground Sentinel Hub EO Browser	The Sentinel Hub Playground provides a quick look at any Sentinel-2 image in any combination of the bands and enhanced with image effects; Landsat 8, DEM and MODIS are also available. Sentinel Hub is an engine for processing of petabytes of satellite data. It is opening the doors for machine learning and helping hundreds of application developers worldwide. It makes Sentinel, Landsat, and other Earth observation imagery easily accessible for browsing, visualization and analysis. Sentinel Hub is operated by Sinergise
IRIS seismic stations/networks	Incorporated Research Institutions for Seismology (IRIS) Data Services map showing the location of seismic stations from all available networks (permanent or temporary) within a radius of 0.18° (about 20 km at mid-latitudes) from the given location of Yakedake. Users can customize a variety of filters and options in the left panel. Note that if there are no stations are known the map will default to show the entire world with a "No data matched request" error notice.
UNAVCO GPS/GNSS stations	Geodetic Data Services map from UNAVCO showing the location of GPS/GNSS stations from all available networks (permanent or temporary) within a radius of 20 km from the given location of Yakedake. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player.
DECADE Data	The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the Mapping Gas Emissions (MaGa) Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO2 to the atmosphere, but installing CO2 monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere.
Large Eruptions of Yakedake	Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
EarthChem	EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).