Towada

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 40.51°N
  • 140.88°E

  • 1011 m
    3316 ft

  • 283271
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

There are no activity reports for Towada.



 Available Weekly Reports

There are no Weekly Reports available for Towada.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0915 Aug 17 Unknown Confirmed 5 Historical Observations Goshikiiwa (NE rim Nakanoumi crater)
0750 BCE (?) Unknown Confirmed 4 Radiocarbon (corrected) Nakanoumi, To-B tephra
4150 BCE (?) Unknown Confirmed 5 Radiocarbon (corrected) Goshikiiwa (Nakanoumi), To-C tephra
5550 BCE (?) Unknown Confirmed 3 Radiocarbon (corrected) Goshikiiwa, To-D' tephra
6250 BCE (?) Unknown Confirmed 4 Radiocarbon (corrected) Goshikiiwa, To-D tephra; Oguni Pumice
7250 BCE (?) Unknown Confirmed 5 Radiocarbon (corrected) Goshikiiwa, To-E tephra; Nambu Pumice
8250 BCE (?) Unknown Confirmed 5 Radiocarbon (corrected) Goshikiiwa, To-F tephra
9490 BCE (?) Unknown Confirmed 3 Radiocarbon (corrected) Nakanoumi, To-G tephra; Shingo Pumice

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Hayakawa Y, 1983. Chuseri tephra formation from Towada volcano, Japan. Bull Volc Soc Japan (Kazan), 28: 263-273 (in Japanese with English abs).

Hayakawa Y, 1985. Pyroclastic geology of Towada volcano. Bull Earthq Res Inst, Univ Tokyo, 60: 507-592.

Hunter A G, Blake S, 1995. Petrogenetic evolution of a transitional tholeiitic-Calc-alkaline series: Towada volcano, Japan. J Petr, 36: 1579-1605.

Japan Meteorological Agency, 2013. National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency.

Kudo T, 2008. Radiocarbon ages of the eruptive products from the eruptive episodes E and G, Towada volcano, northeast Japan. Bull Volc Soc Japan (Kazan), 53: 193-199 (in Japanese with English abs).

Nakagawa H, Chuman N, Ishida T, Matsuyama T, Nanasaki O, Oide K, Oike S, Takahashi H, 1972. Historical development of Towada volcano-an outline. Tohoku Univ Inst Geol Paleont Contr, 73: 7-18 (in Japanese with English abs).

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/.

The dramatic, 11-km-wide, lake-filled Towada caldera formed during as many as six major explosive eruptions over a 40,000-year period ending about 13,000 years ago. Pre-caldera eruptive activity dates back about 2 million years and produced basaltic-to-dacitic lava cones. Following late-Pleistocene andesitic-to-rhyolitic caldera-forming eruptions, the basaltic Ninokura stratovolcano grew in the SSE section of the caldera. Successive dacitic-to-rhyolitic Goshikiiwa explosive eruptions led to the formation of the roughly 2-km-wide Nakanoumi caldera, whose SW and NE rims form dramatic peninsulas extending into Lake Towada. The andesitic-to-dacitic Ogura-yama lava dome was built over the NE rim of Nakanoumi. The latest eruption took place in 915 CE, when eruptions from Ogurayama produced widespread ashfall and pyroclastic flows.