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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 : #Actualités volcaniques, #Sismologie
Turrialba - ash emissions on 10.10.2018, respectively at 6:59 and 10:17 - webcam Ovsicori
Turrialba - ash emissions on 10.10.2018, respectively at 6:59 and 10:17 - webcam Ovsicori

Turrialba - ash emissions on 10.10.2018, respectively at 6:59 and 10:17 - webcam Ovsicori

In Costa Rica, an eruption is reported in Turrialba this October 10 from 6:40 local, accompanied by a plume of ash that rose 200 meters above the active crater. She continued for a few hours.

Activity levels 2018 for Turrialba and Poas - Doc.Ovsicori
Activity levels 2018 for Turrialba and Poas - Doc.Ovsicori

Activity levels 2018 for Turrialba and Poas - Doc.Ovsicori

In Poas, more or less significant degassing is noticed on the webcams these last days; on the other hand, the low-amplitude tremor, prolonged for a few minutes, at the rate of 5-10 episodes per hour as from 7 October.

On October 8th, the opening of the park was delayed by a few hours, because the gases were pushed by the wind towards the watchtower.

On October 9, the park remained closed !

The Ovsicori informs a level of activity 3 since September 17, passed at level 4 since October 6-7 (see diagrams above)

Sources: Ovsicori and RSN

Poas - degassing on 07.10.2018 / 13h40 - webcam Ovsicori

Poas - degassing on 07.10.2018 / 13h40 - webcam Ovsicori

Poas - degassing the 08.10.2018 / 13h56 - Ovsicori webcam

Poas - degassing the 08.10.2018 / 13h56 - Ovsicori webcam

Poas - degassing on 09.10.2018 / 15h17 - Ovsicori webcam

Poas - degassing on 09.10.2018 / 15h17 - Ovsicori webcam

The activity of Krakatau continues ... at a steady pace, going up to one episode every 5 seconds.

The seismograph of the volcano is no longer operational because affected by incandescent materials.

The alert level is always 2 / waspada, with a forbidden area of ​​2 km radius around the crater.

Sources: PVMBG & Magma Indonesia

Video Galih Jati / Krakatoa Expedition Tour, added on October 9th.

Krakatau 10.10.2018 - important activity given the black plume that emerges - image Sentinel-2 image bands 12,11,4

Krakatau 10.10.2018 - important activity given the black plume that emerges - image Sentinel-2 image bands 12,11,4

Several earthquakes with a magnitude greater than or equal to 6 occurred on October 10th.

Three are reported on New Britain in Papua New Guinea, one reported off the island of Java and one in the Kuril Islands region.

Although unpredictable, these earthquakes may provide a better understanding of plate tectonics and faults present, and refine the determination of areas more likely to be affected in the future by these earthquakes.

Sources: USGS, EMSC and Chematierra

Earthquakes of great magnitudes 10.10.2018 - Doc. USGS / via Chematierra - a click to openEarthquakes of great magnitudes 10.10.2018 - Doc. USGS / via Chematierra - a click to open

Earthquakes of great magnitudes 10.10.2018 - Doc. USGS / via Chematierra - a click to open

Large-scale earthquakes on 10.10.2018 in Java, the Kuriles and Papua New Guinea respectively - Docs. EMSC - one click to enlarge
Large-scale earthquakes on 10.10.2018 in Java, the Kuriles and Papua New Guinea respectively - Docs. EMSC - one click to enlargeLarge-scale earthquakes on 10.10.2018 in Java, the Kuriles and Papua New Guinea respectively - Docs. EMSC - one click to enlarge

Large-scale earthquakes on 10.10.2018 in Java, the Kuriles and Papua New Guinea respectively - Docs. EMSC - one click to enlarge

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