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Earth of fire

Actualité volcanique, Articles de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #volcanic activity

During the last 24 hours, 51 exhalations were recorded at Popocatépetl, as well as three minutes of harmonic tremor.

On december 2, three explosions were observed accompanied by ejection of incandescent fragments on the flanks of the volcano and plumes of ash reaching 2,500 meters above the crater: the first at 5:09, the second at 9:22, and the third at 15:45.

Popocatépetl - explosion of 02.12.2018 at 5:09 - 5h10 - webcamsdeMexico - a click to enlargePopocatépetl - explosion of 02.12.2018 at 5:09 - 5h10 - webcamsdeMexico - a click to enlarge

Popocatépetl - explosion of 02.12.2018 at 5:09 - 5h10 - webcamsdeMexico - a click to enlarge

Popocatépetl - explosion of 02.12.2018 at 9:22 - WebcamsdeMexico

Popocatépetl - explosion of 02.12.2018 at 9:22 - WebcamsdeMexico

Popocatépetl - explosion of 02.12.2018 at 03:45 pm - WebcamsdeMexico

Popocatépetl - explosion of 02.12.2018 at 03:45 pm - WebcamsdeMexico

Meanwhile, a constant emission of water vapor is noticed, with dissipation to the northeast.

The alert level remains at Amarillo Fase 2, along with the recall of instructions not to access the volcano due to the danger of falling ballistic fragments and lahars in case of rain.

 

Sources: Cenapred & Segob

Villarica - pyroclastic cone at the bottom of the crater - POVI images 25.11.2018

Villarica - pyroclastic cone at the bottom of the crater - POVI images 25.11.2018

At Villarica, Volcanes de Chile reports at the end of November the presence of a small active pyroclastic cone at the bottom of the crater, marked by a warmer zone.

Source: POVI 02.12.2018 / 23h

Manam - mild to moderate thermal anomalies on 29.11.2018 / 01.12.2018 - Doc.Mirova

Manam - mild to moderate thermal anomalies on 29.11.2018 / 01.12.2018 - Doc.Mirova

In Papua New Guinea, the Mirova site reports a mild to moderate thermal anomaly on 25.11, 29.11 and 01.12.2018 on Manam.

A Sentinel 2 image of December 1 shows a bluish plume surmounting the occasional cloud cover over Manam.

Manam - blue plume on 01.12.2018 - image Sentinel 2 bands 12,11,4 - one click to enlarge

Manam - blue plume on 01.12.2018 - image Sentinel 2 bands 12,11,4 - one click to enlarge

Still off the Big Island, Kadovar volcano, in orange aviation code, is the seat of ash emissions spotted by the Himawari 8 / VAAC Darwin satellite, extending to the southeast.

Sources: Mirova, Sat.Himawari 8 and Sentinel2, VAAC Darwin

Kadovar - volcanic ash advisory for 3 and 4.12.2018 - Doc. VAAC Darwin

Kadovar - volcanic ash advisory for 3 and 4.12.2018 - Doc. VAAC Darwin

Anak Krakatau - seismicity on 02.12.2018 - Doc.Magma Indonesia

Anak Krakatau - seismicity on 02.12.2018 - Doc.Magma Indonesia

In Krakatau, the week of 26 November to 2 December saw its nights marked by incandescent explosions 200 meters above the summit; during the day, a black ash plume is noted between 100 and 700 meters above the summit, often covered with fog.

Seismicity is characterized by 154 eruptions, 45 earthquakes, volcanic earthquakes, 60 shallow and 80 deep, 57 episodes of harmonic tremor and a continuous tremor of amplitude between 1 and 58 mm.

 

Source: PVMBG

Compilation of volcanic lightning in the Krakatau plume between 12 and 15 November 2018 - Galig Jati / volcanodiscovery images

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