Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 31.771°N
  • 130.592°E

  • 40 m
    131 ft

  • 282081
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Yonemaru-Sumiyoshiike.

The Global Volcanism Program has no Weekly Reports available for Yonemaru-Sumiyoshiike.

The Global Volcanism Program has no Bulletin Reports available for Yonemaru-Sumiyoshiike.

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 2 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
6200 BCE (?) Unknown Confirmed 3 Tephrochronology Yonemaru
6250 BCE (?) Unknown Confirmed 2 Tephrochronology Sumiyoshi-ike

Deformation History

There is no Deformation History data available for Yonemaru-Sumiyoshiike.

Emission History

There is no Emissions History data available for Yonemaru-Sumiyoshiike.

Photo Gallery

Sumiyoshi-ike maar provides a backdrop to a campground on the south side of the lake. The 500-m-wide maar was created about 7000 years ago. Sumiyoshi-ike and Yonemaru are two maars that formed in coastal lowland deposits north of the Aira caldera during a period of rising sea level at the beginning of the Holocene. The larger, 1.2-km-wide Yonemaru maar erupted about 2 km west of Sumiyoshi-ike about 6500 years ago.

Copyrighted photo by Yoshihisa Kawanabe (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/).
See title for photo information.

Smithsonian Sample Collections Database

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

Affiliated Sites