Volcano Discovery Friday Apr 05, 2013 19:54 PM |
Distribution of the recent earthquakes under El Hierro (IGN) - note the distinct two layers at about 20 and 10 km depth
Etna (Sicily, Italy): Today is a very sad day for all free people who like Etna: Etna has become a "forbidden volcano".
Maybe intimidated by the recent lava fountains of Etna, the Prefecture of Catania has decided to take strict measures and published a strict ruleset what is allowed and what not, to protect us from the dangerous volcano:
El Hierro (Canary Islands, Spain): The recent seismic crisis could be over: No further significant earthquake activity has occurred since the last pulse on Wednesday. It becomes more and more likely that the crisis (or, if that is was what caused it, the magmatic intrusion under western El Hierro) has ended.
Deformation (inflation and horizontal displacement to the east) has eased a lot. For the vertical movement, the strong inflation has stopped or even began to show a trend of deflation.
Currently erupting:
Ambrym (Vanuatu): active lava lakes in several craters (updated 22 Mar 2013)
Bagana (Bougainville Island, Papua New Guinea): occasional ash explosions (updated 25 Mar 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 2 Apr 2013)
Colima (Western Mexico): frequent explosions from growing lava dome, glowing rockfalls and small pyroclastic flows (updated 30 Mar 2013)
Erebus (Antarctica): active lava lake in summit crater (updated 21 Jan 2012)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Fuego (Guatemala): weak to moderate strombolian activity (updated 4 Apr 2013)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 2013)
Heard (Australia, Southern Indian Ocean): possible lava lake in summit crater (updated 26 Mar 2013)
Karkar (Northeast of New Guinea): possible ash eruption on 1 February (updated 15 Mar 2013)
Kilauea (Hawai'i): lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 4 Apr 2013)
Kizimen (Kamchatka): growing lava dome, lava flow on eastern flank, avalanches (updated 4 Apr 2013)
Lokon-Empung (North Sulawesi, Indonesia): frequent small to moderate ash explosions (updated 4 Apr 2013)
Manam (Papua New Guinea): steaming, occasional ash venting (updated 27 Mar 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 2 Apr 2013)
Ol Doinyo Lengai (Tanzania): spattering and lava flows of natrocarbonatite lava inside the summit crater (updated 9 Dec 2012)
Pacaya (Guatemala): weak strombolian activity from Mackenney crater (updated 4 Apr 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 4 Apr 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash emissions, small explosions (updated 14 Mar 2013)
Raung (East Java): mild strombolian eruption inside the crater (updated 8 Nov 2012)
Reventador (Ecuador): growing lava dome, lava flows on upper flank, frequent explosions (updated 2 Apr 2013)
Sakurajima (Kyushu, Japan): 0-3 weak to moderate vulcanian-style explosions per day, ash clouds up to 2-3 km altitude (updated 2 Apr 2013)
Santa María / Santiaguito (Guatemala): advancing viscous active lava flows, weak occasional explosions (updated 4 Apr 2013)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): slow dome growth, occasional explosions and pyroclastic flows (updated 2 Apr 2013)
Stromboli (Eolian Islands, Italy): strong strombolian explosions, intermittent small lava overspills (updated 4 Apr 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 4 Apr 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 12 Mar 2013)
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