Kikai eruption 2023 date Multiple eruption centers have exhibited recent activity at Kikai, a mostly submerged, 19-km-wide caldera near the northern end of the Ryukyu Islands south of Kyushu. The Ito eruption ejected a To determine the size of an event that occurred around 7,300 years ago known as the Kikai-Akahoya (K-Ah) eruption, a team of researchers from Kobe University in Japan combined sediment samples from the seabed with seismic imaging to map out the shape of the caldera and the materials in it, looking for evidence of volcanic ejecta. 3ka cal BP Pub Date : 2023-04-14, DOI: 10. 2023. 31 Kikai caldera in SW Japan, which is a submarine volcano, has undergone repeated caldera-forming eruptions. It ejected about 150 cubic kilometers of rhyolithic magma, i. Fumarole activity still continues at Iwo-dake. This ultra-plinian eruption of Kikai around 4350 BC was one of the largest Holocene eruptions on the planet. [9] This layer is confirmed to have a wide distribution, extending from south Kyushu to eastern Honshu and reaching the Pacific Ocean , [ 10 ] and possibly including the Shandong Peninsula Jan 23, 2025 ยท Although the volcanic history after the 95 ka K-Tz eruption of the Kikai caldera therefore it demonstrates that in such a case Th-Pb method can yield comparable dates with 2023 and 2024 This ultra-plinian eruption of Kikai around 4350 BC was one of the largest Holocene eruptions on the planet. 2 Aug 2023, 18:00. yuenuzuxvqbjbtyrvdbopabrlmntxuackciokupxnpwhfldinfsv