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Sumiyoshi-ike volcano

Updated: Jun 2, 2023 11:38 GMT - refresh

maars 15 m / 49 ft
Kyushu (Japan), 31.77°N / 130.59°E
Current status: (probably) extinct (0 out of 5)

Sumiyoshi-ike volcano (also referred to as Yonemaru-Sumiyoshiike) are two maars 2 km apart located in the coastal lowland north of the Aira caldera: Sumiyoshi-ike (500 m diameter) and Yonemaru (1.2 km diameter).
The maars erupted when sea level was rising about 8,000 years ago (Sumiyoshi-ike) and 6500 years ago (Yonemaru). The larger of the two, Yonemaru, produced pyroclastic surges that traveled 4 km from the crater.

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Typical eruption style: explosive
Sumiyoshi-ike volcano eruptions: 4550 BC, 5050 BC

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