Gaia «chunga»

Sinabung (Indonesia) - Report for 14 February-20 February 2018 - NEW

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

PVMBG reported that at 0853 on 19 February a large explosive event at Sinabung generated a dark gray plume with a high volume of ash that rose at least to 16.8 km (55,000 ft) a.s.l. According to the Darwin VAAC, ash plumes that were identified in satellite images, recorded by webcams, and reported by PVMBG continued to rise throughout the day to 13.7 km (45,000 ft) a.s.l. and drift 320 km NNW. Parts of the ash plumes drifted in multiple directions at lower altitudes. As many as 10 pyroclastic flows were observed, traveling as far as 4.9 km SSE and 3.5 km E. Ash and tephra as large as pebbles fell in areas downwind including Simpang Empat (7 km SE), the Namanteran district, Pqyung (5 km SSW), Tiganderket (7 km W), Munthe, Kutambaru (20 km NW), Perbaji (4 km SW), and Kutarayat. Conditions in five districts were so dark that visibility was only about 5 m. Some residents outside of the evacuation zone self-evacuated. The event was possibly the largest since the beginning of the current eruption, which began in September 2013. The Alert Level remained at 4 (on a scale of 1-4), with a general exclusion zone of 3 km and extensions of 7 km on the SSE sector, 6 km in the ESE sector, and 4 km in the NNE sector.

Sources: Badan Nacional Penanggulangan Bencana (BNPB) ,Darwin Volcanic Ash Advisory Centre (VAAC),Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM),Rocky Planet

Categorías: Gaia «chunga»

Klyuchevskoy (Russia) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

Based on information from the Yelizovo Airport (UHPP) and satellite images, the Tokyo VAAC reported that on 18 February an ash plume from Klyuchevskoy rose to an altitude of 5.2 km (17,000 ft) a.s.l. and drifted SW.

Source: Tokyo Volcanic Ash Advisory Center (VAAC)

Categorías: Gaia «chunga»

Ambae (Vanuatu) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

Based on satellite and webcam observations, the Wellington VAAC reported that during 17-19 February ash plumes from Ambae rose to altitudes of 3-5.5 km (10,000-18,000 ft) a.s.l. and drifted in multiple directions.

Source: Wellington Volcanic Ash Advisory Center (VAAC)

Categorías: Gaia «chunga»

Dukono (Indonesia) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 15-20 February ash plumes from Dukono rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted SE, S, SW, and W.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)

Categorías: Gaia «chunga»

Cleveland (United States) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

AVO reported that low-level unrest continued at Cleveland. Thermal anomalies were identified in satellite data during 15-16 February, and possibly on 17 February. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory.

Source: US Geological Survey Alaska Volcano Observatory (AVO)

Categorías: Gaia «chunga»

Ebeko (Russia) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 9-10 and 14 February generated ash plumes that rose as high as 2.2 km (7,200 ft) a.s.l. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

Categorías: Gaia «chunga»

Karymsky (Russia) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

KVERT reported that a thermal anomaly over Karymsky was identified in satellite images on 9 February. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

Categorías: Gaia «chunga»

Mayon (Philippines) - Report for 14 February-20 February 2018 - NEW

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

PHIVOLCS reported that during 14-20 February daily activity at Mayon continued to be characterized by lava effusion from the summit crater, rockfalls, lava fountains, steam emissions, advancing lava flows on the flanks, and pyroclastic flows. Weak and sporadic lava fountaining events each lasted between 5 and 239 minutes, and were sometimes accompanied by rumbling sounds audible with a 10-km radius. Heavy rainfall on 14 February caused lahars in the Anoling drainage, and sediment-laden streams in most channels where pyroclastic flow deposits were emplaced. During 16-17 February lava fountains were 200-500 m tall and generated steam plumes that drifted SW, WSW, and NW. A lava-fountaining event that began at 0103 on 17 February lasted for 12 hours and 18 minutes. Lava flows 3.3 km, 4.5 km, and 900 m long in the Mi-isi (S), Bonga (SE), and Basud (E) drainages, respectively, continued to be active. Pyroclastic flows traveled 4.2-4.6 km in the Mi-isi, Bonga, and Basud drainages. The Alert Level remained at 4 (on a 0-5 scale) and the public was warned to remain outside of the Danger Zone, defined as an area within an 8-km radius.

Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)

Categorías: Gaia «chunga»

San Miguel (El Salvador) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

SNET reported that during 0800-1100 on 19 February gas-and-ash emissions from San Miguel rose 350 m above the crater rim and drifted SW. Ash fell on the upper flanks of the volcano, and a sulfur odor was reported in La Piedra farm.

Source: Servicio Nacional de Estudios Territoriales (SNET)

Categorías: Gaia «chunga»

Sabancaya (Peru) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya was similar to the previous week; there was an average of 19 explosions recorded per day during 12-18 February. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 2.5 km above the crater rim and drifted 30 km NW, SW, and S. The MIROVA system detected three thermal anomalies. The sulfur dioxide flux was the highest value yet registered during the eruption, at 9,270 tons per day on 15 February. The report noted that the public should not to approach the crater within a 12-km radius.

Sources: Instituto Geofísico del Perú (IGP),Instituto Geológico Minero y Metalúrgico (INGEMMET)

Categorías: Gaia «chunga»

Agung (Indonesia) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

PVMBG reported that an event at Agung recorded at 1149 on 13 February generated an ash plume that rose to an altitude of 4.5 km (14,900 ft) a.s.l. and drifted E. The Alert Level remained at 4 (on a scale of 1-4) and the exclusion zone continued at a 6-km radius.

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

Categorías: Gaia «chunga»

Aira (Japan) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

JMA reported that very small events occurred at Minamidake crater (at Aira Caldera?s Sakurajima volcano) during 13-16 and 19 February. An explosive event at 0820 on 19 February generated a plume that rose 1.5 km above the crater rim up into meteorological clouds. The Alert Level remained at 3 (on a 5-level scale).

Source: Japan Meteorological Agency (JMA)

Categorías: Gaia «chunga»

Kilauea (United States) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

During 14-20 February HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea?s Overlook crater. Webcams recorded incandescence from a small lava pond in a pit on the W side of Pu'u 'O'o Crater. Surface lava flows were active above and on the pali, and on the coastal plain.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO)

Categorías: Gaia «chunga»

Sheveluch (Russia) - Report for 14 February-20 February 2018

Actividad volcánica (SI/USGS) - Mar, 2018/02/20 - 14:34

KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images during 9-11 and 15 February. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

Categorías: Gaia «chunga»

Bagana (Papua New Guinea) - Report for 7 February-13 February 2018

Actividad volcánica (SI/USGS) - Mié, 2018/02/14 - 07:13

Based on analyses of satellite imagery and model data, the Darwin VAAC reported that during 7-8 February ash plumes from Bagana rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted NE.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)

Categorías: Gaia «chunga»

Pacaya (Guatemala) - Report for 7 February-13 February 2018

Actividad volcánica (SI/USGS) - Mié, 2018/02/14 - 07:13

INSIVUMEH reported that during 7-13 February Strombolian explosions at Pacaya?s Mackenney Crater ejected material 30 m above the main cone. Lava flows were at most 150 m long on the SW and W flanks.

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

Categorías: Gaia «chunga»

Popocatepetl (Mexico) - Report for 7 February-13 February 2018

Actividad volcánica (SI/USGS) - Mié, 2018/02/14 - 07:13

Each day during 7-13 February CENAPRED reported 25-101 emissions from Popocatépetl, with emissions during 11-13 February containing slight amounts of ash. Explosions were detected at 0130 and 2213 on 7 February, at 0457 on 8 February, at 1729 on 12 February, and at 0631 on 13 February. Minor crater incandescence was visible on the morning of 9 February, and at night during 11-12 February. The Alert Level remained at Yellow, Phase Two.

Source: Centro Nacional de Prevencion de Desastres (CENAPRED)

Categorías: Gaia «chunga»

Santa Maria (Guatemala) - Report for 7 February-13 February 2018

Actividad volcánica (SI/USGS) - Mié, 2018/02/14 - 07:13

INSIVUMEH reported that explosions at Santa María's Santiaguito lava-dome complex, detected by the seismic network during 7-13 February, generated ash plumes that rose as high as 700 m and drifted SW. Avalanches of material descended the E and SE flanks of the lava dome. Ash fell on La Florida ranch (5 km S) on 10 February.

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

Categorías: Gaia «chunga»

Shishaldin (United States) - Report for 7 February-13 February 2018

Actividad volcánica (SI/USGS) - Mié, 2018/02/14 - 07:13

On 7 February AVO reported that seismic and infrasound activity from Shishaldin declined to background levels during the previous month, prompting the observatory to lower the Aviation Color Code to Green and the Volcano Alert Level to Normal.

Source: US Geological Survey Alaska Volcano Observatory (AVO)

Categorías: Gaia «chunga»

Fuego (Guatemala) - Report for 7 February-13 February 2018 - NEW

Actividad volcánica (SI/USGS) - Mié, 2018/02/14 - 07:13

INSIVUMEH reported that explosions at Fuego during 7-13 February generated ash plumes that rose as high as 1.5 km and drifted 10-12 km N, NW, SW, and S. Avalanches of material traveled down the Seca (W), Ceniza (SSW), and Taniluyá (SW) drainages on 12 February, and down the Las Lajas (SE) and Honda (E) drainages on 13 February. Ash fell in areas downwind on 13 February including Morelia (9 km SW) and Panimaché (8 km SW).

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

Categorías: Gaia «chunga»
Distribuir contenido