Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Aogashima
The small 2.5 x 3.5 km basaltic island of Aoga-shima, seen here from the SE, is located in the central Izu Islands. Aoga-shima is surrounded by steep cliffs and contains a small 1.7 x 1.5-km-wide caldera. Two pyroclastic cones were formed inside the caldera during the volcano's latest eruption from 1780 to 1785. Photo by Richard Fiske (Smithsonian Institution).
Volcano Number:284060
Volcano Name:Aogashima
Country:Japan
Volcano Type:Stratovolcano
Last Eruption:1785 CE
Elevation:423m
Tectonic Setting:Subduction zone / Oceanic crust (< 15 km)
Pop. within 5km:232
Pop. within 10km:232
Pop. within 30km:232
Pop. within 100km:8559
Latitude:32.458
Longitude:139.759



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
284060 Aogashima 18302 Confirmed Eruption 2 ? Northwest flank Radiocarbon (corrected) -1800
284060 Aogashima 18303 Confirmed Eruption Radiocarbon (corrected) -1200
284060 Aogashima 18304 Confirmed Eruption NNW flank Tephrochronology -1100
284060 Aogashima 18305 Confirmed Eruption 4 SE flank (Kintagaura) Radiocarbon (uncorrected) -600
284060 Aogashima 18306 Confirmed Eruption 3 Ikenosawa crater Historical Observations 1652
284060 Aogashima 18307 Confirmed Eruption 2 Ikenosawa crater Historical Observations 1670 1680
284060 Aogashima 18308 Confirmed Eruption 3 Maru-yama, SW part of Ikenosawa crater Historical Observations 1780/7/27 1785
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Title Author Release Date DOI Link
Melt Inclusion data from the Marianas and Izu volcanic arcs, and Mariana Trough back-arc basin Hauri, Erik 2021-06-29 10.26022/IEDA/112036 Details
Data from the Earthchem Portal
Sorry. No data exist for this volcano in the EarthChem Portal.


Data from the SESAR Database


Data from the MaGa Database
Location: Funakoyama Fumarole Field (View Details at MaGa DB)
Description: unknown
Hazard Description: unknown
Type: fumarole
Region: Tokyo, Japan
Country: Japan
Volcanic Complex: Aogashima
Gas Concentration Data:
Measurement Name Detail Date Specie Concentration Unit of Measure
Aog-3 Detail 2005/07/29 H2O 996.2 micromol/mol
Aog-3 Detail 2005/07/29 CO2 861.86 micromol/mol
Aog-3 Detail 2005/07/29 S (total) 0.55 micromol/mol
Aog-3 Detail 2005/07/29 H2S 0.55 micromol/mol
Aog-3 Detail 2005/07/29 HCl 3.219 micromol/mol
Aog-3 Detail 2005/07/29 HF 0.768 micromol/mol
Aog-3 Detail 2005/07/29 NH3 0.945 micromol/mol
Aog-3 Detail 2005/07/29 Ar 1.24 micromol/mol
Aog-3 Detail 2005/07/29 N2 101.333 micromol/mol
Aog-3 Detail 2005/07/29 He 0.01419 micromol/mol
Aog-3 Detail 2005/07/29 H2 1.179 micromol/mol
Aog-3 Detail 2005/07/29 O2 27.863 micromol/mol
Aog-3 Detail 2005/07/29 CH4 1.028 micromol/mol
Aog-3 Detail 2005/07/29 CO 0 micromol/mol
Aog-3a Detail 2005/07/29 H2O 996.78 micromol/mol
Aog-3a Detail 2005/07/29 CO2 835.46 micromol/mol
Aog-3a Detail 2005/07/29 S (total) 0.68 micromol/mol
Aog-3a Detail 2005/07/29 H2S 0.68 micromol/mol
Aog-3a Detail 2005/07/29 HCl 12.116 micromol/mol
Aog-3a Detail 2005/07/29 HF 1.764 micromol/mol
Aog-3a Detail 2005/07/29 NH3 0.711 micromol/mol
Aog-3a Detail 2005/07/29 Ar 1.379 micromol/mol
Aog-3a Detail 2005/07/29 N2 112.425 micromol/mol
Aog-3a Detail 2005/07/29 He 0.01744 micromol/mol
Aog-3a Detail 2005/07/29 H2 1.304 micromol/mol
Aog-3a Detail 2005/07/29 O2 33.068 micromol/mol
Aog-3a Detail 2005/07/29 CH4 1.074 micromol/mol
Aog-3a Detail 2005/07/29 CO 0 micromol/mol
Gas Isotope Data:
Measurement Name Detail Date Isotope Abundance Unit of Measure
Aog-3 Detail 2005/07/29 d15N -2.5 permill_vs_smow
Aog-3a Detail 2005/07/29 d15N -2.1 permill_vs_smow
Gas Temperature Data:
Measurement Name Detail Date Temperature Unit of Measure
Aog-3 Detail 2005/07/29 99.4 °C
Aog-3a Detail 2005/07/29 99.4 °C

Location: Maruyama Volcano Central Cone (View Details at MaGa DB)
Description: unknown
Hazard Description: unknown
Type: fumarole
Region: Tokyo, Japan
Country: Japan
Volcanic Complex: Aogashima
Gas Concentration Data:
Measurement Name Detail Date Specie Concentration Unit of Measure
Aog-1 Detail 2005/07/29 H2O 898.22 micromol/mol
Aog-1 Detail 2005/07/29 CO2 504.56 micromol/mol
Aog-1 Detail 2005/07/29 S (total) 1.27 micromol/mol
Aog-1 Detail 2005/07/29 H2S 1.27 micromol/mol
Aog-1 Detail 2005/07/29 HCl 10.633 micromol/mol
Aog-1 Detail 2005/07/29 HF 1.256 micromol/mol
Aog-1 Detail 2005/07/29 NH3 3.457 micromol/mol
Aog-1 Detail 2005/07/29 Ar 4.679 micromol/mol
Aog-1 Detail 2005/07/29 N2 386.547 micromol/mol
Aog-1 Detail 2005/07/29 He 0 micromol/mol
Aog-1 Detail 2005/07/29 H2 0.023 micromol/mol
Aog-1 Detail 2005/07/29 O2 87.562 micromol/mol
Aog-1 Detail 2005/07/29 CH4 0 micromol/mol
Aog-1 Detail 2005/07/29 CO 0 micromol/mol
Gas Isotope Data:
Measurement Name Detail Date Isotope Abundance Unit of Measure
Aog-1 Detail 2005/07/29 d15N 1.3 permill_vs_smow
Gas Temperature Data:
Measurement Name Detail Date Temperature Unit of Measure
Aog-1 Detail 2005/07/29 85.8 °C

Location: Misone Fumarole Field (View Details at MaGa DB)
Description: unknown
Hazard Description: unknown
Type: fumarole
Region: Tokyo, Japan
Country: Japan
Volcanic Complex: Aogashima
Gas Concentration Data:
Measurement Name Detail Date Specie Concentration Unit of Measure
Aog-2 Detail 2005/07/29 H2O 986.79 micromol/mol
Aog-2 Detail 2005/07/29 CO2 965.52 micromol/mol
Aog-2 Detail 2005/07/29 S (total) 6.31 micromol/mol
Aog-2 Detail 2005/07/29 H2S 6.31 micromol/mol
Aog-2 Detail 2005/07/29 HCl 0.862 micromol/mol
Aog-2 Detail 2005/07/29 HF 0.193 micromol/mol
Aog-2 Detail 2005/07/29 NH3 0.09 micromol/mol
Aog-2 Detail 2005/07/29 Ar 0.138 micromol/mol
Aog-2 Detail 2005/07/29 N2 22.475 micromol/mol
Aog-2 Detail 2005/07/29 He 0.01052 micromol/mol
Aog-2 Detail 2005/07/29 H2 3.388 micromol/mol
Aog-2 Detail 2005/07/29 O2 0.011 micromol/mol
Aog-2 Detail 2005/07/29 CH4 0.733 micromol/mol
Aog-2 Detail 2005/07/29 CO 0 micromol/mol
Aog-2a Detail 2005/07/29 H2O 988.68 micromol/mol
Aog-2a Detail 2005/07/29 CO2 961.54 micromol/mol
Aog-2a Detail 2005/07/29 S (total) 6.9 micromol/mol
Aog-2a Detail 2005/07/29 SO2 2.64 micromol/mol
Aog-2a Detail 2005/07/29 H2S 4.23 micromol/mol
Aog-2a Detail 2005/07/29 HCl 3.585 micromol/mol
Aog-2a Detail 2005/07/29 HF 1.141 micromol/mol
Aog-2a Detail 2005/07/29 NH3 0.199 micromol/mol
Aog-2a Detail 2005/07/29 Ar 0.131 micromol/mol
Aog-2a Detail 2005/07/29 N2 21.611 micromol/mol
Aog-2a Detail 2005/07/29 He 0.01255 micromol/mol
Aog-2a Detail 2005/07/29 H2 3.963 micromol/mol
Aog-2a Detail 2005/07/29 O2 0 micromol/mol
Aog-2a Detail 2005/07/29 CH4 0.916 micromol/mol
Aog-2a Detail 2005/07/29 CO 0 micromol/mol
Gas Isotope Data:
Measurement Name Detail Date Isotope Abundance Unit of Measure
Aog-2 Detail 2005/07/29 d15N 1.6 permill_vs_smow
Aog-2a Detail 2005/07/29 d15N 1.3 permill_vs_smow
Gas Temperature Data:
Measurement Name Detail Date Temperature Unit of Measure
Aog-2 Detail 2005/07/29 99.2 °C
Aog-2a Detail 2005/07/29 99.2 °C