Weekly Volcanic Report

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SI / USGS Weekly Volcanic Activity Report

  • Wed, 17 Apr 2019 00:49:11 -0600: Ibu (Indonesia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    The Darwin VAAC reported that on 10 April ash plumes from Ibu were identified in satellite images drifting N at an altitude of 2.1 km (7,000 ft) a.s.l. During 15-16 April ash plumes drifted N and NE at an altitude of 2.4 km (8,000 ft) a.s.l. 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: Darwin Volcanic Ash Advisory Centre (VAAC)

  • Wed, 17 Apr 2019 00:49:11 -0600: Villarrica (Chile) - Report for 10 April-16 April 2019 - NEW - Smithsonian / USGS Weekly Volcanic Activity Report

    POVI reported that during 14-15 April lava fountains at Villarrica were visible rising as high as 70 m above the crater rim. Seismicity was low.

    Source: Proyecto Observaci�n Villarrica Internet (POVI)

  • Wed, 17 Apr 2019 00:49:11 -0600: Ruapehu (New Zealand) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    GeoNet reported that, at least for the last 10 years of continuous lake-temperature monitoring, heating cycles at Ruapehu?s summit Crater Lake have occurred over periods of about 12 months with temperatures ranging from 15 to 45 degrees Celsius. However, the temperature remained elevated at 30 degrees for a period of six months starting in September 2018. GeoNet noted that during the previous two weeks the lake temperature increased further, at a rate of around a half of a degree per day, to 42 degrees on 9 April. Tremor levels also increased. The Volcanic Alert Level remained at 1 (minor volcanic unrest) and the Aviation Color Code remained at Green.

    Source: GeoNet

  • Wed, 17 Apr 2019 00:49:11 -0600: Aira (Japan) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    JMA reported that incandescence from Minamidake crater (at Aira Caldera?s Sakurajima volcano) was occasionally visible during 12-15 April. Two events and one explosion generated plumes that rose a maximum of 2.2 km above the crater rim and ejected material as far as 700 m. The Alert Level remained at 3 (on a 5-level scale).

    Source: Japan Meteorological Agency (JMA)

  • Wed, 17 Apr 2019 00:49:11 -0600: Agung (Indonesia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that at 1847 on 11 April an explosion at Agung produced a dense gray ash plume that rose 2 km above the crater rim and drifted W. The Alert Level remained at 3 (on a scale of 1-4) with the exclusion zone set at a 4-km radius.

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

  • Wed, 17 Apr 2019 00:49:11 -0600: Krakatau (Indonesia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that an eruption at Anak Krakatau was recorded by the seismic network at 0932 on14 April. An ash plume drifted NE. An event was recorded at 2358 on 15 April, though no ash plume was visible. The Alert Level remained at 3 (on a scale of 1-4), and residents were warned to remain outside of the 5-km radius hazard zone from the crater.

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

  • Wed, 17 Apr 2019 00:49:11 -0600: Ebeko (Russia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    Volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, observed explosions on 9 April that sent ash plumes up to 2.2 km (7,200 ft) a.s.l. Weather clouds obscured views on the other days during 5-12 April. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

    Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

  • Wed, 17 Apr 2019 00:49:11 -0600: Etna (Italy) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    INGV reported that during 8-14 April gas emissions of variable intensity rose from Etna?s summit craters. During each night webcams recorded pulsating flashes from the E vent in New Southeast Crater (NSEC) which became more intense towards the end of the week. A minor ash emission from Bocca Nuova Crater was visible at 0520 on 8 April.

    Source: Sezione di Catania - Osservatorio Etneo (INGV)

  • Wed, 17 Apr 2019 00:49:11 -0600: Fuego (Guatemala) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    INSIVUMEH reported that during 10-11 April steaming lahars descended Fuego?s Las Lajas (SE), El Jute (SE), Ceniza (SSW), and Taniluy� (SW) drainages, carrying blocks up to 3 m in diameter, and branches and tree trunks. On 11 April lahars were 3 m deep and 20 m wide. During 11-15 April there were 12-22 explosions per hour, generating ash plumes that rose almost 1.1 km and drifted10-15 km N, NE, E, and W. Minor ashfall was reported in areas downwind including Alotenango, Ciudad Vieja (13.5 km NE), La R�union, Yepocapa (8 km N), Morelia (9 km SW), Santa Sofia (12 km SW), and Panimache (8 km SW). Shock waves sometimes vibrated residential structures. Incandescent material was ejected 100-300 m high and caused avalanches of material that occasionally traveled long distances down Seca, Taniluy�, Ceniza, Trinidad, Las Lajas, and Honda ravines. A lava flow, 400-500 m long, advanced in the Seca drainage.

    Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)

  • Wed, 17 Apr 2019 00:49:11 -0600: Tengger Caldera (Indonesia) - Report for 10 April-16 April 2019 - NEW - Smithsonian / USGS Weekly Volcanic Activity Report

    The Darwin VAAC reported that during 10-11 and 15-16 April ash plumes from Tengger Caldera?s Bromo cone rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted in multiple directions, based on webcam images and satellite data. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to stay outside of a 1-km radius of the crater.

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

  • Wed, 17 Apr 2019 00:49:11 -0600: Kadovar (Papua New Guinea) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    Based on satellite data and wind model data, the Darwin VAAC reported that on 10 April an ash plume from Kadovar rose to an altitude of 1.2 km (4,000 ft) a.s.l. and drifted SE and E.

    Source: Darwin Volcanic Ash Advisory Centre (VAAC)

  • Wed, 17 Apr 2019 00:49:11 -0600: Kerinci (Indonesia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that at 1559 on 13 April and 0629 on 14 April brownish ash plumes rose 400 m above Kerinci?s crater rim and drifted E and NE, respectively, as noted by a ground-based observer. The Alert Level remained at 2 (on a scale of 1-4), and tourists were warned to remain outside of the 3-km exclusion zone.

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

  • Wed, 17 Apr 2019 00:49:11 -0600: Karangetang (Indonesia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    Based on analyses of satellite imagery and model data, the Darwin VAAC reported that on 16 April an ash emission from Karangetang rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted W. The Alert Level remained at 2 (on a scale of 1-4).

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

  • Wed, 17 Apr 2019 00:49:11 -0600: Merapi (Indonesia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    PVMBG reported that during 5-11 April the lava dome at Merapi continued to grow slowly, with extruded material channeled into the SE-flank Gendol River drainage. The Alert Level remained at 2 (on a scale of 1-4), and residents were warned to remain outside of the 3-km exclusion zone.

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

  • Wed, 17 Apr 2019 00:49:11 -0600: Sheveluch (Russia) - Report for 10 April-16 April 2019 - Smithsonian / USGS Weekly Volcanic Activity Report

    KVERT reported that a thermal anomaly over Sheveluch?s lava dome was identified daily in satellite images during 6-12 April. Explosions on 10 April generated ash plumes that rose to 8-9 km (26,200-29,500 ft) a.s.l. and drifted about 1,300 km SSE. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

    Source: Kamchatkan Volcanic Eruption Response Team (KVERT)


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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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