Another plug appears to have formed at the Ruang volcano. As a result, pressure is currently building up and could be released in a larger eruption than witnessed in the last 24 hours. While unlikely to come close in magnitude or intensity to the April 17th plinian eruption phase, this could still generate a 12 kilometer high eruption column and carries with it a potential tsunami risk. This video discusses the latest developments at Ruang, along with the possibility that the three regional islands are all vents on the rim of a hidden caldera.

Thumbnail Photo Credit: Bawoleh Yuanita,   / yuanitagretosbawoleh  , Used with Permission

Note: This video’s thumbnail image does not show Ruang’s current activity, but rather its past plinian phase on April 17th. Ruang’s current eruptive activity is much weaker (at least when I posted this video).

I want to give a special thanks to INGVvulcani / INGV, Progetto UNO (@uno_progetto on Twitter), and Tullio Ricci for previously allowing me to use footage of a pyroclastic flow and associated small tsunami in my YouTube videos. The original video was posted on the INGVvulcani channel (   / ingvvulcani  ) at    • Stromboli, 12 ottobre 2022: colata di...   under a CC BY 3.0 license, YouTube Creative Commons.

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Google Earth imagery used in this video: ©Google & Data Providers

This video is protected under "fair use". If you see an image and/or video which is your own in this video, and/or think my discussion of a scientific paper (and/or discussion/mentioning of the data/information within a scientific paper) does not fall under the fair use doctrine, and wish for it to be censored or removed, contact me by email at [email protected] and I will make the necessary changes.

Various licenses used in sections of this video (not the entire video, this video as a whole does not completely fall under one of these licenses) and/or in this video's thumbnail image (and this list does not include every license used in this video and/or thumbnail image):
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Sources/Citations:
[1] PVMBG (Pusat Vulkanologi dan Mitigasi Bencana Geologi) (Indonesia)
[2] VEIs, dates/years, composition, tephra layer name, DRE estimates, and bulk tephra volume estimates for volcanic eruptions shown in this video which were assigned a VEI 4 or larger and are not Ruang's 2024 eruption or Hunga Tonga-Hunga Ha'apai's 2022 eruption are sourced from the LaMEVE database (British Geological Survey © UKRI), https://www2.bgs.ac.uk/vogripa/view/c..., Used with Permission
[3] Source of Volcanic Explosivity Index (VEI) methodology and criteria: Newhall, C. G., and Self, S. (1982), The volcanic explosivity index (VEI) an estimate of explosive magnitude for historical volcanism, J. Geophys. Res., 87(C2), 1231–1238, doi:10.1029/JC087iC02p01231. Accessed / Read by    / geologyhub   on Oct 5th, 2022.
[4] INGVvulcani

0:00 Ruang Volcano Erupts
0:59 An Ancient Caldera?
1:51 Undated Caldera
2:59 What Might Happen Next