Weekly Volcanic Report

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Rich

SI / USGS Weekly Volcanic Activity Report

  • Wed, 06 Nov 2019 00:41:22 -0700: Suwanosejima (Japan) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    JMA reported that at 1225 on 19 October a very small eruptive event at Suwanosejima?s Ontake Crater generated a gray plume that rose 300 m above the crater rim. A small amount of ash fell in Toshima, 4 km SW. Very small eruptions during 29-30 October generated grayish-white plumes that rose 800 m. Ashfall was reported in Toshima on 29 October. The Alert Level remained at 2 (on a 5-level scale).

    Source: Japan Meteorological Agency (JMA)

  • Wed, 06 Nov 2019 00:41:22 -0700: Karangetang (Indonesia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that during 1-5 November lava continued to effuse from Karangetang?s Main Crater (S), traveling as far as 1.5 km down the Nanitu, Pangi, and Sense drainages on the SW and W flanks. Sometimes dense white plumes rose to 200 m above the summit. The Alert Level remained at 2 (on a scale of 1-4).

    Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)

  • Wed, 06 Nov 2019 00:41:22 -0700: Shishaldin (United States) - Report for 30 October-5 November 2019 - NEW - Smithsonian / USGS Weekly Volcanic Activity Report

    AVO reported that by 28 October two stalled lava flows extended as far as 1.8 km down Shishaldin?s NW flank, lahars had traveled at least 4 km down the NW flank, and trace ash deposits on the N flank were identified in satellite images. Activity paused during 29-30 October but resumed on 31 October. Numerous small explosions were detected by the local seismic network during 31 October-1 November and incandescence was visible in webcam images. There was no evidence of active lava flows outside of the summit crater. During 1-2 November seismicity remained elevated characterized by periods of high-amplitude tremor. Small explosions were recorded in seismic and infrasound data. Elevated surface temperatures were detected in satellite images and incandescence was observed in webcam images overnight. A pilot observed a lava flow in the morning of 2 November. Sporadic incandescence recorded by the webcam overnight during 2-3 November suggested minor explosive activity and/or lava fountaining. On 3 November lava overflowed the summit crater and traveled at least 400 m down the NW flank and 300 m down the SE flank. By 4 November the flow on the NW flank had branched and lengthened to 1 km. Lahars were as long as 2 km on the N and S flanks. Spatter deposits from explosions or fountaining were visible on the summit cone. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

    Source: US Geological Survey Alaska Volcano Observatory (AVO)

  • Wed, 06 Nov 2019 00:41:22 -0700: Metis Shoal (Tonga) - Report for 30 October-5 November 2019 - NEW - Smithsonian / USGS Weekly Volcanic Activity Report

    GeoNet reported that by 1 November the eruption at Metis Shoal (Lateiki) had formed an elongated island, with no visible evidence of the old 1995 dome. According to a news article the new island is about 100 m wide and 400 m long, and had emerged at a location 120 m away from the former island. The article noted that the eruption had ceased.

    Sources: GeoNet ,Matangi Tonga Online

  • Wed, 06 Nov 2019 00:41:22 -0700: Ebeko (Russia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    Volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, observed explosions during 25-26 and 29-30 October that sent ash plumes up to 2.5 km (8,200 ft) a.s.l. Ash plumes drifted E and NE. A weak thermal anomaly was identified in satellite images on 29 October. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

    Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

  • Wed, 06 Nov 2019 00:41:22 -0700: Aira (Japan) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    JMA reported that incandescence from Minamidake crater (at Aira Caldera?s Sakurajima volcano) was visible at night during 28 October-5 November. There were 32 explosions and 16 non-explosive eruptive events detected by the seismic network. Eruption plumes rose as high as 2.8 km above the crater rim and large blocks were ejected as far as 1.3 km away. The Alert Level remained at 3 (on a 5-level scale).

    Source: Japan Meteorological Agency (JMA)

  • Wed, 06 Nov 2019 00:41:22 -0700: Klyuchevskoy (Russia) - Report for 30 October-5 November 2019 - NEW - Smithsonian / USGS Weekly Volcanic Activity Report

    KVERT reported that ash plumes and steam-and-gas plumes with some ash drifted 130 km SW on 25 October according to video and satellite data. A weak thermal anomaly was identified in satellite images during 26-27 and 30 October. The Aviation Color Code remained at Orange.

    Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

  • Wed, 06 Nov 2019 00:41:22 -0700: Stromboli (Italy) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    INGV reported that during 30 October-5 November activity at Stromboli was characterized by ongoing Strombolian activity and degassing from multiple vents within the crater terrace. Explosions originated at a rate of 2-13 per hour from vents in Area N (north crater area) and at a rate of 7-16 per hour from vents in Area C-S (south central crater area). Explosions from Area N ejected lapilli and bombs no more than 175 m high, while explosions at Area C-S ejected tephra to heights under 250 m.

    Source: Sezione di Catania - Osservatorio Etneo (INGV)

  • Wed, 06 Nov 2019 00:41:22 -0700: Sabancaya (Peru) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    Instituto Geof�sico del Per� (IGP) reported that an average of 28 low-to-medium intensity explosions per day occurred at Sabancaya during 28 October-3 November. Gas-and-ash plumes rose as high as 2 km above the summit and drifted W, SW, and S. There were nine thermal anomalies identified in satellite data. The Alert Level remained at Orange (the second highest level on a four-color scale) and the public were warned to stay outside of a 12-km radius.

    Sources: Instituto Geof�sico del Per� (IGP),Observatorio Vulcanol�gico del INGEMMET (OVI)

  • Wed, 06 Nov 2019 00:41:22 -0700: Ibu (Indonesia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that during 1-5 November white-and-gray plumes from Ibu rose 200-800 m above the summit and drifted E and N. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to stay at least 2 km away from the active crater, and 3.5 km away on the N side.

    Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)

  • Wed, 06 Nov 2019 00:41:22 -0700: Kerinci (Indonesia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that at 0614 on 30 October a brownish-white ash emission from Kerinci rose around 800 m above the summit and drifted NE, E, and SE. Brownish ash emissions rose 800 m and drifted WSW at 1721 on 30 October and to 500 m and drifted ESE at 0543 on 1 November. An eruptive event at 0553 on 2 November generated a brown ash emission that rose 500 m and drifted ESE. During 3-5 November brown ash plumes rose 100-500 m. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 3-km exclusion zone.

    Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)

  • Wed, 06 Nov 2019 00:41:22 -0700: Semeru (Indonesia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    The Darwin VAAC reported that on 30 October an ash plume from Semeru rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted SE and S based on satellite images and weather models. The Alert Level remained at 2 (on a scale of 1-4).

    Source: Darwin Volcanic Ash Advisory Centre (VAAC)

  • Wed, 06 Nov 2019 00:41:22 -0700: Sangeang Api (Indonesia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    The Darwin VAAC reported that during 30-31 October and 3-4 November discrete and short-lived ash emissions from Sangeang Api rose 2.7-3.5 km (9,000-11,000 ft) a.s.l. and drifted NW, W, and SW. Thermal anomalies were visible on 3 and 5 November. The Alert Level remained at 2 (on a scale of 1-4).

    Source: Darwin Volcanic Ash Advisory Centre (VAAC)

  • Wed, 06 Nov 2019 00:41:22 -0700: Yasur (Vanuatu) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    On 31 October the Vanuatu Meteorology and Geo-Hazards Department (VMGD) reported that recent observations and data from Yasur?s seismic network confirmed ongoing sometimes strong explosions. The Alert Level remained at 2 (on a scale of 0-4). VMGD reminded residents and tourists that hazardous areas were near and around the volcanic crater, within a 395-m-radius permanent exclusion zone, and that volcanic ash and gas could reach areas impacted by trade winds.

    Source: Vanuatu Meteorology and Geo-Hazards Department (VMGD)

  • Wed, 06 Nov 2019 00:41:22 -0700: Dukono (Indonesia) - Report for 30 October-5 November 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    Based on satellite and wind model data, and information from PVMBG, the Darwin VAAC reported that during 30 October-5 November ash plumes from Dukono rose to an altitude of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted NE, E, and SE. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 2-km exclusion zone.

    Sources: Darwin Volcanic Ash Advisory Centre (VAAC),Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)


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Updated: March 12, 2011 — 12:36 pm

The Author

Rich Fleetwood

Rich is the founder of SurvivalRing, now in it's 20th year, author of multimedia CDs and DVDs, loves the outdoors, his family, his geeky skill-set, and lives in rural Missouri, just a few miles from the Big Muddy. Always ready to help others, he shares what he learns on multiple blogs, social sites, and more. With a background in preparedness and survival skills, training with county, state, and national organizations, and skills in all areas of media and on air experience in live radio and television, Rich is always thinking about the "big picture", when it comes to helping individuals and families prepare for life's little surprises. Since 1997, he has provided guidance, authentic government survival history, and commentary on why we all need to get ready for that fateful day in the future, when we have to get our hands dirty and step in to save the day. He is an award winning videographer (2005 Telly Award), has received state and national scholarly recognition (2006 New Century Scholar and All USA Academic Team), and is a natural with computers, technology, gadgets, small furry mammals, and anything on wheels. Rich likes making friends, solving problems, and creating solutions to everyday issues. He doesn't mind mixing things up, when there is a teaching moment ready to happen. As a constitutional conservative, he's staying quite busy these days. The SurvivalRing Radio Show at www.survivalringradio.com will be coming back SOON!

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