This week, the largest explosion in 20 months occurred at the erupting Marapi volcano, sending bombs of lava more than a kilometer into the sky. Meanwhile, a heat signature at Nicaragua's Telica volcano in my opinion suggests an increased chance of it soon erupting. And, in the Philippines, the Mayon volcano produced a 15 year high level of sulfur dioxide emissions, possibly indicating an increased magma supply. Today's video will discuss these stories through the opinion and analysis of a geologist and list the 40 world volcanoes that are actively erupting. Note: It is purely opinion on my part that Nicaragua's Telica volcano could erupt in the short to mid term future. I am relying on limited data and could be very wrong. This video's thumbnail image displays a previous eruption of the Fuego volcano in Guatemala. If you would like to support this channel, consider using one of the following links: (Patreon: http://patreon.com/geologyhub) (YouTube membership: https://www.youtube.com/channel/UCYeGh5VML5XPr5jYnzh3J6g/join) (Gemstone & Mineral Etsy store: http://prospectingarizona.etsy.com) (GeologyHub Merch Etsy store: http://geologyhub.etsy.com) 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): Public Domain: https://creativecommons.org/publicdomain/mark/1.0/ CC BY 3.0 NZ: https://creativecommons.org/licenses/by/3.0/nz/legalcode CC BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode Sources/Citations: [1] U.S. Geological Survey [2] Hawaiian Volcano Observatory [3] PVMBG (Indonesia) (Pusat Vulkanologi dan Mitigasi Bencana Geologi) (Indonesia) [4] Observatoire Volcanologique de Piton de la Fournaise (OVPF) (Réunion Island) [5] Phivolcs [6] Servicio Geológico Colombiano [7] Sernageomin [8] Tonga Geological Services [9] Observatorio Vulcanológico y Sismológico de Costa Rica (OVSICORI) [10] Vanuatu Meteorology & Geo-Hazards Department [11] IVAR (Instituto de Investigação em Vulcanologia e Avaliação de Riscos) [12] Instituto Geofísico Escuela Politécnica Nacional [13] Alaska Volcano Observatory [14] Geonet (New Zealand) [15] CIVISA (Azores) [16] Rabaul Volcano Observatory [17] Japanese Meteorological Agency [18] Vedur.is / Iceland Met Office