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Summary of world-wide volcanic activity 25 April -1 May 2012

Thursday May 03, 2012 09:19 AM | DOOR: T

The new Smithsonian / USGS Weekly Volcanic Activity Report was published today and is summarized as follows:

-- new activity ---

Batu Tara (Sunda Islands, Indonesia): occasional ash eruptions, plumes up to 2.4 km altitude
Cleveland (Aleutians, Alaska): new small lava dome 25 m across detected
Iwo-jima (Ioto) (Volcano Islands, Japan): small eruption on 2 May, lake water discoloration
Lokon (North Sulawesi, Indonesia): occasional ash eruptions, plumes reaching 3.7 km altitude
Popocatépetl (Mexico): gas-and-steam emissions, occasional explosions ejecting lava bombs up to 1 km, crater glow

--- ongoing activity ---

Bulusan (Philippines): decline in activity since last phreatic eruption in May 2011, alert lowered to normal
Etna (Sicily, Italy): New SEC paroxysm nr 25 on 24 April
Karmysky (Kamchatka): occasional small ash eruptions, thermal anomaly at summit crater
Kilauea (Hawai'i): active lava lake in Halema'uma'u crater, active lava flows advancing on coastal plain to within about 900 m from coast
Nevado del Ruiz (Colombia): strong degassing, possible phreatic explosions, eruption warning
Sakurajima (Japan): ongoing occasional vulcanian eruptions, ash reaching 2.7 km altitude
Santiaguito (Guatemala): lahar on 25 April, viscous lava flows and occasional explosions
Shiveluch (Kamchatka): continuing strong ash explosions up to 10 km altitude, viscous lava flow in 2010 crater
Soufriere Hills (Montserrat): low level of activity, recent rockfall and pyroclastic deposits observed
Tungurahua (Ecuador): intermittent explosions, ash venting, ash fall
---
Koppelingen / Bronnen:
Vorig nieuws
Thursday, Apr 19, 2012
The past week was characterized by an important increase of Popocatéptl volcano's activity in Mexico and one of the Etna's most spectacular recent episodes of fire fountaining. ... [meer...]
Thursday, Apr 12, 2012
Another unexciting week in terms of volcanic activity has passed. ... [meer...]
Tuesday, Apr 10, 2012
We hebben een nieuwe website die een eenvoudig te gebruiken interface biedt waarmee verschillende vulkaan webcams en sommige andere online gegevens weergeven in één site gemaakt: ... [meer...]
Thursday, Apr 05, 2012
Een ander vulkanisch relatief rustige week is verstreken. Enkele uitzonderingen waren April's Fool's dag uitbarsting op Etna en aanhoudende sterke uitbarstingen op Sjiveloetsj in Kamtsjatka (waar activiteit moet worden om het nieuws kolossale.) ... [meer...]
Thursday, Mar 29, 2012
Geen grote uitbarstingen zijn opgetreden tijdens de afgelopen week. IJsland, Santorini en Etna blijven rustig. In Indonesië, Krakatau en Semeru zijn zeer actief, Ijen op hoge alert blijft. Soufrière Hills op Montserrat lijkt te worden wakker worden, terwijl Puyehue in Chili's uitbarsting is fading. ... [meer...]

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