Wednesday, March 2, 2016

GLOBAL VOLCANISM: The Latest Report Of Volcanic Eruptions, Activity, Unrest And Awakenings – March 1-2, 2016! [PHOTOS + VIDEO]

Explosion at Sinabung (Image: Andi / VolcanoDiscovery Indonesia)

March 2, 2016 - EARTH - The following constitutes the new activity, unrest and ongoing reports of volcanoes across the globe.

Sinabung (Sumatra, Indonesia): The activity of the volcano seems to have picked up.

Eruption of Sinabung on February 29, 2016 - 11:28pm (Image: Endro Lewa / Facebook)

Our correspondent Andi who's there on one of our Volcano Special tours, reported:

"Sinabung increases its activity after the big pyroclastic flow on February 26, which burned the remaining houses left from the previous damaged village (Simacem)...- this and the occurrence of highly hybrid tremors means there is deformation of the lava dome that grows continuously and increases the intensity of rock falls followed by pyroclastic flows."

Suwanose-jima (Ryukyu Islands): After a period of relative calm since last October, a new phase of strombolian activity occurred this morning at the volcano.

WATCH: Time-lapse video of Suwanose-jima.

Telica (Nicaragua): INETER and SINAPRED confirmed that a small amount of lava was erupted from a small new fissure into the crater of Telica during the night, as bright glow had suggested. A warning was issued not to approach the crater because of the risk of sudden explosions.

Shortly before dawn, weak ash emissions occurred from the crater, which since then has remained relatively calm, producing only a small intermittent steam/gas plume mixed with some light ash content.

Ash emission from Telica.

Telica's crater with bright glow from lava (?) about 40 minutes after the first signs of incandescence.

On March 1, a new eruption seems to be underway at the volcano. Bright glow has become visible from the crater since around midnight (local time).

This probably indicates that a new eruptive fissure is opening up there, possibly erupting lava onto the crater floor.

Fuego (Guatemala): The activity of the volcano continued to increase into its 4th paroxysm (called "eruption" by local press) of 2016. Lava effusion rate increased gradually and continued to feed the lava flow on the eastern side into the Las Lajas ravine, where it reached approx 600 m length yesterday and started to produce small pyroclastic flows (by collapse of parts of the flow on the steep slope).

Ash plume from Fuego.

Pulsating lava fountains at the summit vents generated an steam and ash plume that rose 2-3 km above the volcano, reaching altitudes of 17-20,000 ft(5.2 - 6 km). The plume drifted southwest for up to 20 km before dissipating.

Constant moderate to strong rumblings can be heard and felt in nearby areas.

Soputan (North-Sulawesi, Indonesia): The volcano has remained calm since its last eruption on February 6-7, but continues to show significant signs of unrest. Its alert level is being maintained at 3 on the Indonesian scale of 1-4.

Seismic activity at Soputan over the past year
(Red lines=explosion signals, GUGURAN=avalanche signals)

Visual activity during the past weeks consisted in degassing, producing a plume that rose 25-75 meters, and rock avalanches from the lava dome that indicate that magma supply continues into the dome at slow rate.

An exclusion zone of 4 km radius from the summit is in place and increased to 6.5 km towards the western sector. River beds draining from the volcano in particular should be avoided due to the elevated risk of lahars (mud flows) during rainfall.

Erta Ale (Danakil depression, Ethiopia): The level of the active lava lake in the volcano's southern pit crater of the summit caldera has sunk a bit again after its last overflow in mid January, but remains highly agitated. Our expedition leader Enku who was there with a small group from February 12-15 reported:

The lava lake of Erta Ale seen in late December 2015 (image: Enku Mulugheta)

"Erta Ale is going down again to 5- 7 Meters from the rim of the caldera, but the activity is getting very wild at this time and it was very hard to walk on the the recently crusted flow.

The last flow went in every direction from the crater and covered the whole rim with fresh crust of gaseous basaltic pahoehoe lava.

Momotombo (Nicaragua): Two moderately strong explosions occurred during the past 24 hours at the volcano, covering the upper slopes of the cone with fresh lava bombs and producing ash plumes that rose approx 2 km.

Explosion at Momotombo.
Small explosion from Momotombo.

This followed a period of calmer activity that had lasted a few days.

Karymsky (Kamchatka): Two stronger explosions occurred this morning, producing ash plumes that rose to 13,000 and 17,000 ft (4.2 and 5.1 km) altitude and drifted NE, Tokyo VAAC reported.

Shiveluch (Kamchatka): The extrusive activity from the active dome has increased again recently. Near constant small to moderate glowing avalanches can be seen on the SW sector of the lava dome.

Incandescent rockfalls from Shiveluch

Some of them produce pyroclastic flows that travel a few km distance and produce ash plumes that rise up to 17,000 ft (5.1 km) altitude.

Sakurajima (Kyushu, Japan): The volcano is back at its typical style of activity of having intermittent (0-3 on average per day) small to moderate vulcanian explosions.

Eruption of Sakurajima volcano

Compared to most of 2013-15, Sakurajima's activity is relatively low, though.

Dukono (Halmahera): Intense ash emissions continue from the volcano. Darwin VAAC reported an ash plume at 8,000 ft (2.4 km) altitude extending 50 nautical miles to the NE yesterday.

Colima (Western Mexico): No significant changes have occurred recently at the volcano. The small lava dome continues to be active, while explosions have become small and rare.

Glow from Colima's small lava dome inside the summit crater

Nevado del Ruiz (Colombia): The Manizales volcano observatory reported small ash emissions yesterday.

Tungurahua (Ecuador): Ash emissions have continued after the powerful vent-clearing explosion on Sunday (27 Feb). During brief periods when cloud cover lifted, a steam-and ash column was seen rising 1,500 meters above the crater and heading west.

Ash/steam emission from Tungurahua

Ash fall has been occurring in the sector of Mocha. Ground vibrations from the volcano could be felt in Manzano, Pillate, Patilahua and the Tungurahua Volcano Observatory.

- Volcano Discovery .

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