Bulusan Volcano Update; Alert Level Raised, Intense Earthquake Swarm

The alert level was just raised at the Mount Bulusan volcano in the Philippines due to more than 300 earthquakes occurring in the last 24 hours, which is highly abnormal. Additionally, in the past several weeks volcanic uplift has been detected, alongside increasing hot spring temperatures and gas emissions. As a result, a new volcanic eruption at Bulusan is surprisingly likely. This video will discuss the ongoing volcanic unrest and what might happen next.

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Graphics, tables, and images which contain eruption dates, lengths, and/or VEIs are sourced from (and sometimes courtesy of) the Global Volcanism Program, Smithsonian Institution (although sometimes with minor changes made by GeologyHub). https://volcano.si.edu/
Citation: Global Volcanism Program, 2013. Volcanoes of the World, v. 4.11.2 (02 Sep 2022). Venzke, E (ed.). Smithsonian Institution. Downloaded 13 Oct 2022. https://doi.org/10.5479/si.GVP.VOTW4-2013.

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 on Oct 5 2022.

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

Thumbnail Photo Credit: Chris Newhall (U.S. Geological Survey), Public Domain

0:00 Bulusan Alert Level Raised
1:11 Sulfur Odor
2:20 Phreatic Eruptions
2:33 Exclusion / Danger Zone
2:52 Caldera Forming Eruption
3:28 Average Eruption at Bulusan
4:03 Conclusion

Key for volcano color codes shown in this video (this is only if they do not represent official alert levels from local government / volcanological agencies):
GREEN - Normal volcanic activity, very low chance of an eruption.
LIGHT YELLOW - Minor increase in levels of volcanic activity, such as increased earthquakes, very low chance of an eruption, but higher than with green.
BRIGHT YELLOW - Notable increase in levels of volcanic activity, potential changes at the volcano, increased risk of an eruption.
ORANGE - High volcanic unrest, this often means a volcano is about to erupt or has a greatly increased likelihood of erupting in the short to mid term future (seconds to weeks). However, an eruption occurring is not a certainty as this alert level.
RED - The volcano is erupting.

Creative Commons Licenses used for specific content (such as a single image within the video which as a whole does not entirely fall under the same license) or sections of specific content (such as a photo within a table) in this video (not the entire table for this example):
CC0 1.0: https://creativecommons.org/publicdomain/zero/1.0/legalcode
CC BY 2.0: https://creativecommons.org/licenses/by/2.0/legalcode
CC BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode

Sources:
[1] De Maisonneuve, C.B. and Bergal-Kuvikas, O. (2020), Timing, magnitude and geochemistry of major Southeast Asian volcanic eruptions: identifying tephrochronologic markers. J. Quaternary Sci., 35: 272-287. https://doi.org/10.1002/jqs.3181, CC BY 4.0.
[2] Global Volcanism Program, 2013. Volcanoes of the World, v. 4.11.2 (02 Sep 2022). Venzke, E (ed.). Smithsonian Institution. Downloaded 13 Oct 2022. https://doi.org/10.5479/si.GVP.VOTW4-2013.
[3] Global Volcanism Program, 2013. Bulusan (273010) in Volcanoes of the World, v. 4.11.2 (02 Sep 2022). Venzke, E (ed.). Smithsonian Institution. Downloaded 13 Oct 2022 (https://volcano.si.edu/volcano.cfm?vn=273010). https://doi.org/10.5479/si.GVP.VOTW4-2013

Видео Bulusan Volcano Update; Alert Level Raised, Intense Earthquake Swarm канала GeologyHub