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Volcanic activity worldwide 29 Mar 2014: Reventador, Shishaldin, Fuego, Karymsky

samedi mars 29, 2014 21:00 |

Current seismic signal of Fuego (FG3 station, INSIVUMEH)
Current seismic signal of Fuego (FG3 station, INSIVUMEH)
Overlaying of thermal and visible images showing the new lava flows on Reventador (image: F. Vásconez , IG)
Overlaying of thermal and visible images showing the new lava flows on Reventador (image: F. Vásconez , IG)
Karymsky (Kamchatka): Activity at the volcano seems to have been on comparably high levels, since ash plume reports have become more frequent recently.
VAAC Tokyo reported ongoing ash emissions with a plume drifting eastwards at estimated 7,000 ft (2.1 km) altitude.

Shishaldin (United States, Aleutian Islands): The Alaska Volcano Observatory raised the alert level for the volcano to Aviation Color Code ORANGE and Alert Level WATCH: "Elevated surface temperatures were detected in satellite data beginning on March 18 and have persisted to the present time.
Analysis of this data shows that temperatures are consistent with the eruption of lava within the summit crater. The current activity appears to be confined to the deep summit crater and there have been no observations of lava on the flanks of the volcano or surrounding the summit crater.
... [read more]

Fuego (Guatemala): The volcano's activity has dropped again a bit. During 27-28 March, 34 moderate explosions with ash plumes up to 800 m high were reported by the volcano observatory. Light ash falls occurred in areas to the west and many explosions were accompanied by shock waves.
The recent lava flow, though, seems to be inactive again.

Reventador (Ecuador): The volcano's activity has remained high since the beginning of the current eruptive phase since 25 March. Fresh lava continues to extrude at the summit crater, adding to the dome that had been active since 2011, and producing incandescent avalanches, small pyroclastic flows on its flanks and ash emissions.
Seismic activity has remained at high levels, showing continuous tremor and emissions signals. IGPEN reports that the pyroclastic flows on the E, SE and S flanks have traveled up to 1.5 km from the summit. Additionally, there seems to be at least 2 lava flows that descend the south-eastern and eastern flank of the volcano, with fronts reaching approx. 500 m distance.
Actualités précédentes
Earthquakes under Grímsvötn volcano, probably a result of the glacial flood (Icelandic Met Office)
vendredi, mars 28, 2014
Grímsvötn (Iceland): (27 Mar) A small jökulhlaup (glacier outburst flood) started yesterday from the subglacial lake Grímsvötn and has been discharging into the river Gígjukvísl. ... [details]
Etna's New SE crater this morning (Etna Trekking webcam on Schiena dell'Asino)
jeudi, mars 27, 2014
Etna (Sicily, Italy): During the night, the lava effusion and persistent mild explosive activity from the New SE crater ceased, after being nearly continuously active for over two months. ... [details]
Ash puff from a strombolian eruption at Slamet last weekend
mercredi, mars 26, 2014
Slamet (Central Java): Strombolian explosions of generally small size continue at irregular intervals. ... [details]
mardi, mars 25, 2014
Kilauea (Hawai'i): No major changes in eruption activity on Kilauea over the past week - lava lake at summit remains 45 m (148 ft) below the floor of Halema`uma`u crater. All surface flows on the east rift zone remain slow in progress, but continue to burn tree lines in the closed Kahauale`a reserve. ... [details]
An eruption from Fuego volcano this morning (INSIVUMEH)
lundi, mars 24, 2014
Karymsky (Kamchatka): A volcanic ash plume was see on satellite imagery this morning at 10,000 ft (3 km) altitude and extending SE of the volcano, VAAC Tokyo reported. ... [details]

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