Gaia «chunga»

Klyuchevskoy (Russia) - Report for 29 November-5 December 2017 - NEW

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

KVERT reported that strong gas-and-steam emissions at Klyuchevskoy were recorded by a webcam during 2-5 December, and contained some ash starting at 2300 on 5 December. The gas-and-ash plumes were visible in satellite data drifting 170 km E. KVERT raised the Aviation Color Code to Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

Categorías: Gaia «chunga»

Pacaya (Guatemala) - Report for 29 November-5 December 2017 - NEW

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

On 28 November INSIVUMEH reported that 6-8 Strombolian explosions per hour at Pacaya?s Mackenney cone ejected material as high as 25 m above the main cone. A lava flow traveled 30 m down the NW flank of the cone.

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

Categorías: Gaia «chunga»

Villarrica (Chile) - Report for 29 November-5 December 2017 - NEW

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

Gradually increasing activity at Villarrica since 15 November prompted OVDAS-SERNAGEOMIN to raise the Alert Level to Yellow (the second lowest level on a four-color scale) on 5 December, and warn the public to stay outside of a 1-km radius around the crater. Increased activity was characterized by recorded volcano-tectonic earthquakes, increased thermal anomalies identified in satellite data, and increased lava-lake activity. The infrasound network, photos, and field observations confirmed a higher lake level and explosions that were ejecting material deposited in the crater area. Lava fountains 150 m high were documented by POVI during the second half of November.

Sources: Proyecto Observación Villarrica Internet (POVI),Servicio Nacional de Geología y Minería (SERNAGEOMIN)

Categorías: Gaia «chunga»

Etna (Italy) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

INGV reported that, although weather conditions often prevented views of Etna during 27 November-3 December, gas emissions from the summit craters were visible along with ash emissions from a series of explosions from the vent in the saddle between the Southeast Crater (SEC) - New Southeast Crater (NSEC) cone complex.

Source: Sezione di Catania - Osservatorio Etneo (INGV)

Categorías: Gaia «chunga»

Karymsky (Russia) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

Based on satellite data KVERT reported that an eruption at Karymsky began at about 0630 on 4 December and generated an ash cloud that rose to an altitude of km (9,000 ft) a.s.l. An ash cloud 16 x 12 km in dimension was identified in satellite images about three hours later, 92 km E of the volcano. The Aviation Color Code was raised to Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

Categorías: Gaia «chunga»

Turrialba (Costa Rica) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

OVSICORI-UNA reported that a small event at Turrialba at 1319 on 1 December generated a weak ash plume that rose 50 m above the crater rim and drifted SW.

Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)

Categorías: Gaia «chunga»

Great Sitkin (United States) - Report for 29 November-5 December 2017 - NEW

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

AVO reported that during 28 November-5 December low-level unrest continued at Great Sitkin. Nothing noteworthy was identified in seismic data nor in partly cloudy to cloudy satellite images. 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»

Agung (Indonesia) - Report for 29 November-5 December 2017 - NEW

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

PVMBG reported that the eruption at Agung, which began on 21 November, continued during 30 November-5 December. On 29 November gray ash plumes levels were rising to 2 km above the crater rim, resulting in ashfall to the SE. During 30 November-5 December emissions continued to rise 2 km; most were white in color, but dense gray ash emissions were noted during 1-2 December. Satellite data indicated that lava effusion continued at least through 1 December, and the erupted volume of lava was estimated to be 20 million cubic meters, equivalent to about a third of the total crater volume. The base of the plume was often reddish during 29 November-5 December reflecting incandescence from lava in the crater. BNPB noted on 5 December that 63,885 evacuees were distributed in 225 evacuation shelters. Lahars were first noted on 21 November and continued to be observed through 5 December. The lahars flowed down drainages on the S flank (along the Tukad Yehsa, Tukad Sabuh, and Tukad Beliaung drainages) and also down the Tukad Bara drainage on the N flank, impacting houses, roads, and agricultural areas. The Alert Level remained at 4 (on a scale of 1-4), and the exclusion zones continued at a general 8-km radius and 10 km in the NNE, SE, S, and SW directions.

Sources: Badan Nacional Penanggulangan Bencana (BNPB) ,Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)

Categorías: Gaia «chunga»

Ebeko (Russia) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 25-26 and 28-30 November generated ash plumes that rose as high as 2 km (6,600 ft) a.s.l. Ashfall was reported in Severo-Kurilsk on 28 November. 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»

Aira (Japan) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

JMA reported that an explosion at Minamidake summit crater (at Aira Caldera?s Sakurajima volcano) occurred at 1637 on 27 November, and generated an ash plume that rose 2 km above the crater rim. Nighttime crater incandescence was sometimes visible during 27 November-1 December. Very small events occurred at Minamidake Crater on 1 December, and at Showa Crater during 2-3 December. The Alert Level remained at 3 (on a 5-level scale).

Source: Japan Meteorological Agency (JMA)

Categorías: Gaia «chunga»

Cleveland (United States) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

AVO reported that during 29 November-5 December no significant activity was visible in cloudy to mostly cloudy satellite images, and no activity was detected by seismic or infrasound sensors. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

Source: US Geological Survey Alaska Volcano Observatory (AVO)

Categorías: Gaia «chunga»

Sabancaya (Peru) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya slightly decreased compared to the previous week; there was an average of 69 explosions recorded per day during 27 November-3 December. Seismicity was dominated by long-period events, with signals indicating emissions. Gas-and-ash plumes rose 3.3 km above the crater rim and drifted 40 km NE and SW. The MIROVA system detected eight thermal anomalies. The sulfur dioxide flux was high, at 2,036 tons per day, on 28 November. 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»

Sinabung (Indonesia) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

Based on observations by PVMBG, satellite and webcam images, and model data, the Darwin VAAC reported that during 29 November and 1-2 December ash plumes from Sinabung rose 3.4-4.9 km (11,000-16,000 ft) a.s.l. and drifted S and E.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)

Categorías: Gaia «chunga»

Dukono (Indonesia) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

Based on analyses of satellite imagery and wind model data, the Darwin VAAC reported that during 29 November-5 December ash plumes from Dukono rose to altitudes of 2.1-2.3 km (7,000-8,000 ft) a.s.l. and drifted E, ESE, and SE.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)

Categorías: Gaia «chunga»

Kilauea (United States) - Report for 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

During 29 November-5 December HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea?s Overlook crater. Webcams recorded incandescence from long-active sources within Pu'u 'O'o Crater and from a small lava pond in a pit on the W side of the 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 29 November-5 December 2017

Actividad volcánica (SI/USGS) - Mié, 2017/12/06 - 06:19

KVERT reported that a thermal anomaly over Sheveluch was identified in satellite images during 24 November-1 December. The Aviation Color Code remained at Orange.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)

Categorías: Gaia «chunga»

The Atlantic hurricane season runs from June 1st through November 30th.

National Hurricane Center (Atlántico) - Sáb, 2017/12/02 - 11:30
The Atlantic hurricane season runs from June 1st through November 30th.
Categorías: Gaia «chunga»

Atlantic Tropical Weather Outlook

National Hurricane Center (Atlántico) - Jue, 2017/11/30 - 23:30

000
ABNT20 KNHC 302330
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
700 PM EST Thu Nov 30 2017

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Tropical cyclone formation is not expected during the next 5 days.

This is the last regularly scheduled Tropical Weather Outlook of
the 2017 Atlantic hurricane season. Routine issuance of the
Tropical Weather Outlook will resume on June 1, 2018. During the
off-season, Special Tropical Weather Outlooks will be issued as
conditions warrant.

$$
Forecaster Beven
Categorías: Gaia «chunga»

Atlantic Tropical Weather Outlook

National Hurricane Center (Atlántico) - Jue, 2017/11/30 - 17:19

000
ABNT20 KNHC 301719
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
100 PM EST Thu Nov 30 2017

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Tropical cyclone formation is not expected during the next 5 days.

$$
Forecaster Stewart
Categorías: Gaia «chunga»

Atlantic Tropical Weather Outlook

National Hurricane Center (Atlántico) - Jue, 2017/11/30 - 11:40

000
ABNT20 KNHC 301140
TWOAT

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
700 AM EST Thu Nov 30 2017

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

Tropical cyclone formation is not expected during the next 5 days.

$$
Forecaster Stewart
Categorías: Gaia «chunga»
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