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Volcanic activity worldwide 28 Dec 2014: Popocatépetl volcano, San Miguel

Sunday Dec 28, 2014 21:00 PM |

Ash plume from a moderately strong explosion at Popocatépetl on Friday
Ash plume from a moderately strong explosion at Popocatépetl on Friday
Pulsating steam emissions from Chaparrastique on 20 Dec 2014 (MARN)
Pulsating steam emissions from Chaparrastique on 20 Dec 2014 (MARN)
Popocatépetl (Central Mexico): A series of small to moderate explosions occurred during 26-27 Dec at the volcano. The largest one, at 17:07 local time Friday, produced an ash plume that rose 3.5 km above the crater.
Yesterday, CENAPRED recorded 6 explosions. Night-time incandescence is visible at the crater where a cake-like lava dome is growing, confirmed also during a recent overflight.
This type of activity is still well within the normal range of the current state of semi-persistent mild activity at the volcano, and the alert level remains unchanged at "Yellow Phase 2".

San Miguel (El Salvador): The volcano remains restless with seismic activity above background and shows occasional pulsating gas and steam emissions. Overall, activity has been slowly decreasing over the past months.
Tomorrow Monday marks the anniversary of the strong explosion on 29 Dec 2013, when a large ash plume caused ash falls in Chinameca, New Guadalupe, Santiago de María, San Jorge and other areas near the volcano.

Volcano Activity Summary for 28 Dec 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Aso (Kyushu): intense strombolian activity from main vent in Nakadake crater (updated 27 Dec 2014)
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 10 Nov 2014)
Bardarbunga (Central Iceland): lava lake, sporadic fountains, lava flow (updated 18 Sep 2014)
Barren Island (Indian Ocean): intermittent activity, likely strombolian-type and/or lava flows (updated 4 Feb 2014)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 4 Nov 2014)
Colima (Western Mexico): new lava flow on SW flank (updated 30 Nov 2014)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
Daikoku (Volcano Islands): underwater eruption discovered on 14 Dec 2014 (updated 22 Dec 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 25 Nov 2014)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Fogo (Cape Verde): decreasing lava effusion (updated 27 Dec 2014)
Fuego (Guatemala): strombolian explosions from summit crater, intermittent lava flows (updated 27 Dec 2014)
Gamalama (Halmahera): new eruption on 18 Dec 2014 (updated 22 Dec 2014)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 14 Nov 2014)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 4 Oct 2014)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 13 Aug 2013)
Manam (Papua New Guinea): degassing, occasional ash venting (updated 28 Aug 2013)
Marapi (Western Sumatra, Indonesia): sporadic explosions (updated 27 Mar 2014)
Nasu (Honshu)
Nishino-shima (Volcano Islands, Japan): growing island (updated 27 Dec 2014)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 28 Dec 2014)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Raung (East Java): mild strombolian activity in summit crater (updated 2 Dec 2014)
Reventador (Ecuador): lava flow on southwestern flank, intermittent explosions (updated 7 Dec 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 15 Dec 2014)
Sangeang Api (Indonesia): growing lava dome & lava flow (updated 7 Jul 2014)
Santiaguito (Guatemala): small explosions from the Caliente dome and active lava flow (updated 27 Dec 2014)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 26 Nov 2014)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 27 Dec 2014)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 18 Dec 2014)
Slamet (Central Java): intense strombolian explosions (updated 13 Sep 2014)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 14 Nov 2014)
Tungurahua (Ecuador): moderate to strong strombolian explosions from central crater (updated 25 Sep 2014)
Ubinas (Peru): degassing, sporadic small explosions and ash venting (updated 11 Sep 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): degassing, last eruption ended mid Oct 2014 (updated 16 Dec 2014)

Eruption warning / minor activity:

Augustine (Cook Inlet (SW Alaska))
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 5 Dec 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): incandescent lava dome (updated 24 Oct 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, alert lowered (updated 25 Oct 2014)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): explosion on 3 Aug 2014 (updated 5 Dec 2014)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 13 Sep 2014)
Lopevi (Vanuatu ): eruption warning (updated 16 Dec 2014)
Mayon (Luzon Island): steaming (updated 18 Dec 2014)
Monowai (Kermandec Islands, New Zealand): frequent submarine eruptions, last confirmed during Oct 2014 (updated 14 Nov 2014)
Nevado del Ruiz (Colombia): ash emissions (updated 16 Dec 2014)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Piton de la Fournaise (La Réunion): short-lived eruption during 21-22 June (updated 4 Dec 2014)
Rasshua (Central Kuriles)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sabancaya (Peru): steaming, elevated seismic activity (updated 10 Nov 2014)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 12 Apr 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): mild explosive activity, intermittent more intense phases (updated 18 Dec 2014)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 12 Dec 2014)
Turrialba (Costa Rica): occasional ash emissions (updated 9 Dec 2014)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Villarrica (Central Chile): deep-seated strombolian explosions in summit crater (updated 18 Dec 2014)

Previous news
Map of the Nornahraun lava field as of 24 Dec 2014 (Univ. Iceland)
Saturday, Dec 27, 2014
Bardarbunga (Central Iceland): The eruption continues, but seems to be becoming slowly weaker. The latest measurement shows the Nornahraun lava field measures now more than 81 square km. ... [more]
Active lava flow in the Cova Tina area west of the vents on 20 Dec (Image: Abraão Barbosa Vicente, via AVCAN)
Thursday, Dec 25, 2014
Fogo (Cape Verde): Lava effusion continues from the vents, while explosive activity there has more or less ended. ... [more]
Cross-section over the top of Daikoku seamount with the results from a CTD tow (black line), showing anomalies in turbidity (warm colors indicate high particle concentrations) in the eruption plume. Image courtesy of Submarine Ring of Fire 2014 - Ironman, NOAA/PMEL, NSF
Monday, Dec 22, 2014
Fogo (Cape Verde): The eruption continues its destructive work: the lava effusion from the vents remains at moderate intensity and feeds various active flows that spread in the Cha Caldera. ... [more]
Map of the lava flow near Pahoa as of 19 Dec
Sunday, Dec 21, 2014
Kilauea (Hawai'i): (21 Dec) The June 27th lava flow continues to advance slowly, at a rate of approx. 100 m per day. The active northern flow front was approx. 800 m from the west edge of the Pahoa Marketplace and about 1 km from Highway 130, measured in a straight line. ... [more]

Saturday, Dec 20, 2014
Fogo (Cape Verde): (19 Dec) It seems that after a short period of quietening down (9-14 December) the Fogo eruption has regained its strength. This confirms our earlier report of increased emission of sulphur dioxide thought to indicate the rise of a new magma batch. ... [more]

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