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Earth of fire

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

Publié le par Bernard Duyck
Publié dans : #Actualités volcaniques

In Santiaguito, a loud explosion was accompanied on May 6 at 4:40by an ash plume rising to 5,500 m asl, before moving south. Ash falls were reported on in San Felipe Retalhuleu, El Nuevo Palmar, Las Marías, Muluá, San Martín Zapotitlán ... they can extend to wider areas. Pyroclastic flows have descended Dome Caliente on eastern and western flanks of 3,000 meters.

On 5 May, heavy rains generated moderate lahars in the Rio del Angel Cabelleo

Lahar May 5 in the Rio del Angel Cabello / Santiaguito.

Also in Guatemala, Fuego has just begun its seventh eruption of 2016.

From effusive type, it is characterized by glowing projections 300 meters above the crater and long lava flows of 3,000 meters in the barranca Las Lajas, and 1,500 meters in the barranca Trinitad.

Sources: INSIVUMEH & Conred.

Summary of the six eruptions 2016 of Fuego - doc. RSN

Summary of the six eruptions 2016 of Fuego - doc. RSN

 Fuego - 06/05/2016 - Photos INSIVUMEH
 Fuego - 06/05/2016 - Photos INSIVUMEH

Fuego - 06/05/2016 - Photos INSIVUMEH

In Costa Rica, Turrialba  repeating eruptions occurred on May 5 at 12:05 pm, and May 6, where between 6am and 8am, there were six eruptions. The number of eruptions and ash emissions are then maintained with an average of three per hour. The ash plume rises to within 500 meters and quickly dissipated by winds towards the south sector. The level of tremor remains stable

That eruption of May 5 is well documented, technicians and engineers of the NSR were on site for maintenance of measurement devices and webcams.

Source: Ovsicori

Turrialba - erupted on May 5 at 12:05 - Doc. RSN

Turrialba - erupted on May 5 at 12:05 - Doc. RSN

 Maintenance and ash at the Turrialba May 5, 2016 - Photo Ovsicori
 Maintenance and ash at the Turrialba May 5, 2016 - Photo Ovsicori

Maintenance and ash at the Turrialba May 5, 2016 - Photo Ovsicori

Ash eruptions of the last days cover the entire crater of Turrialba - photo RSN

Ash eruptions of the last days cover the entire crater of Turrialba - photo RSN

In the arc of the Aleutian, the Cleveland stratovolcano present on May 5 at 6:44 p.m. local / 2:44 UTC on May 6 an explosion; it has been detected by seismometers and infrasound data. Due to weather conditions, the satellites could not report the explosion. On 2 and 3 May local small earthquakes were recorded by seismographs.

The aviation code is passed to orange and volcanic alert to Watch, since May 5 at 19:35.

The explosion should have modified a new small lava dome in the summit crater, installed after the April 16 explosion.

Source: AVO

 

Cleveland - summit dome - Image archive AVO / John Lyons

Cleveland - summit dome - Image archive AVO / John Lyons

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