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Summary of world-wide volcanic activity 28 March - 3 April

Thu, 5 Apr 2012, 11:13
11:13 AM | BY: T
Another volcanically relatively quiet week has passed. Some exceptions were April's Fool's day eruption at Etna, and ongoing strong eruptions at Shiveluch in Kamchatka (where activity needs to be colossal to make the news.)
Several volcanoes have calmed down and been set back to lower alert levels. As usual, the new Smithsonian / USGS Weekly Volcanic Activity Report has been issued today and is summarized as follows:

-- new activity ---

Cleveland (Aleutians): new lava dome growth detected, alert raised again
Fuego (Guatemala): strong strombolian activity
Iliamna (Alaska): slightly increased seismic activity
Lewotobi (Flores, Indonesia): steaming and seismic activity decreased, alert lowered back to 1 (out of 4)
Nevado del Ruiz (Colombia): increasing seismic activity, strong degassing, eruption warning
Soufriere Hills (Montserrat): low seismic activity, strong degassing and SO2 emission
Sundoro (Central Java, Indonesia): alert lowered to normal

--- ongoing activity ---

Etna (Sicily, Italy): New SEC paroxysm nr 23 on 1 April
Karmysky (Kamchatka): occasional ash eruptions, thermal anomaly at summit crater
Kilauea (Hawai'i): active lava lake in Halema'uma'u crater, incandescence visible from both a small pit on the NE edge and a small spatter cone on the SE edge of the Pu'u 'O'o crater floor, and on the upper part of the lava-tube system on the E flank. Lava flows continued to advance down the pali and across the coastal plain, reaching about 1.6 km from the coast. On 2 April a small lava flow issued from a vent on the S edge of the Pu'u 'O'o crater floor.
Popocatépetl (Mexico): steam-and-gas emissions and incandescence from the crater
Puyehue-Cordón Caulle (Chile): small plumes up to 1.2 km above crater, incandescence at crater
Shiveluch (Kamchatka): strong explosive activity, ash plume up to 7 km altitude, viscous lava flow in 2010 crater
Tengger caldera (Bromo) (East Java, Indonesia):activity decreased to normal levels over past months, alert lowered to normal (1 out of 4)
Tungurahua (Ecuador): steaming, minor ash emission, lahars triggered by rainfalls
Links / Sources:
Previous news
Thu, 29 Mar 2012, 12:58
No major eruptions have occurred during the past week. Iceland, Santorini and Etna remain quiet. In Indonesia, Krakatau and Semeru are very active, Ijen remains at high alert. Soufrière Hills on Montserrat seems to be waking up, while Puyehue in Chile's eruption is fading. ... read all
Thu, 22 Mar 2012, 08:15
A relatively quiet week of volcanic activity has passed and as on every Thursday, the new Smithsonian / USGS Weekly Volcanic Activity Report is issued. It is summarized as follows: ... read all
Thu, 15 Mar 2012, 09:13
The new Smithsonian / USGS Weekly Volcanic Activity Report summarized: ... read all
Mon, 12 Mar 2012, 19:21
A technically minor, but visually obvious design change was just implemented,- everything stays the same, but we thought to add a picture to the top... I hope you like the change! read all

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