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Volcanic activity worldwide 7 Jul 2014: Etna, Stromboli, Santa María / Santiaguito, Nyamuragira, Fu...

Monday Jul 07, 2014 17:30 PM |

New lava overflow on Stromboli's Sciara del Fuoco this morning (INGV thermal webcam)
New lava overflow on Stromboli's Sciara del Fuoco this morning (INGV thermal webcam)
Current tremor amplitude (ESLN station, INGV Catania)
Current tremor amplitude (ESLN station, INGV Catania)
Eruption from Shiveluch volcano yesterday (KVERT webcam)
Eruption from Shiveluch volcano yesterday (KVERT webcam)
Eruption of Sakurajima Sunday morning (local time)
Seismic signal from this morning's earthquake at Santiaguito (STG2 station, INSIVUMEH)
Seismic signal from this morning's earthquake at Santiaguito (STG2 station, INSIVUMEH)
Fuego volcano yesterday morning (INSIVUMEH)
Fuego volcano yesterday morning (INSIVUMEH)
Small ash puff from Ubinas this morning
Small ash puff from Ubinas this morning
SO2 plume over Nyiragongo / Nyamuragira volcanoes (NOAA)
SO2 plume over Nyiragongo / Nyamuragira volcanoes (NOAA)
Stromboli (Eolian Islands, Italy): After a weekend with comparably low activity and no lava overflows, a new surge of lava effusion has started and a small lava overflow is again active on the upper Sciara del Fuoco.
Tremor is elevated as well.

Etna (Sicily, Italy): The lava flow continues to advance slowly from the new fissure vent into the Valle del Leone. Tremor has been rising gradually overall, but is still low.
The following time-lapse from 14:00 local time Saturday until now shows the arrival of the new dike causing the new fissure vent to open and the advance of the lava flow:


Shiveluch (Kamchatka): Several small to moderate explosions occurred at the active lava dome during the past days. Ash plumes were reported to up to 27,000 ft (8 km) altitude.

Sakurajima (Kyushu, Japan): The volcano had a busy weekend with at least 6 explosions during 48 hours. The largest produced an ash plume to 12,000 ft (3.6 km) altitude.

Batu Tara (Sunda Islands, Indonesia): Explosive activity has been pronounced during the past days. Several ash plumes were spotted on satellite data, indicating relatively strong strombolian eruptions.

Sangeang Api (Indonesia): Activity continues at least intermittently. An ash plume at estimated 9,000 ft (2.7 km) altitude was observed Friday extending almost 100 km to the NW (VAAC Darwin).

Santa María / Santiaguito (Guatemala): According to INSIVUMEH, a "very strong and prolonged" earthquake occurred under the volcano this morning at 05:25 local time. Paintings in houses were bouncing and small landslides occurred in steep river bed sides. The earthquake also triggered small avalanches on the steep flanks of the active Caliente lava dome.
Last night, an explosion with visible incandescent material occurred at 18:57. During the night, intermittent glow could be seen from the summit area of the dome. Incandescence was also observed from the upper eastern flank of the dome, where a blocky lava flow continues to be weakly active.

Fuego (Guatemala): The latest lava flow seems to have stopped. The volcano remained in its typical persistent type of activity, with intermittent mostly weak to moderate strombolian explosions. Incandescent material was ejected to 50-100 m and ash plumes rose up to 400 m above the summit.
Strong jet-like degassing noises accompany the eruptions.

Ubinas (Peru): The volcano has been very calm except for one or very few small ash explosions during the past days.

Nyamuragira (DRCongo): The new eruption continues in the form of a lava lake in the summit caldera. No evidence of lava flowing on the flanks of the giant volcano is availabe.
Thermal satellite data show the hot spot at the summit and a large SO2 plume from both Nyamuragira and neighboring Nyiragongo, which also has a (very active) lava lake, are evidence of this.
Unfortunately, the area of both volcanoes is still unsafe to travel to.

Volcano Activity Summary for 7 Jul 2014:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 14 Aug 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 27 May 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 7 Jul 2014)
Colima (Western Mexico): extrusion of lava flow from summit, intermittent explosions (updated 10 Apr 2014)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 28 Jun 2014)
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)
Ibu (Halmahera, Indonesia): growing lava dome, occasional ash emissions (updated 30 Mar 2014)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 13 Aug 2013)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 25 Jul 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): lava effusion enlarging the new island (updated 30 Jun 2014)
Nyamuragira (DRCongo): lava lake in summit crater (updated 7 Jul 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)
Reventador (Ecuador): ash emissions, explosions (updated 2 Jul 2014)
Sakurajima (Kyushu, Japan): ash venting, intermittent explosions (updated 7 Jul 2014)
Sangeang Api (Indonesia): growing lava dome & lava flow (updated 7 Jul 2014)
Santa María / Santiaguito (Guatemala): generation of hot lahars (updated 7 Jul 2014)
Semeru (East Java, Indonesia): growing lava dome, ash venting and small to moderate explosions (updated 25 Jul 2012)
Shiveluch (Kamchatka): growing lava dome, incandescent avalanches, occasional explosions (updated 7 Jul 2014)
Slamet (Central Java): strombolian explosions from central crater (updated 4 Jul 2014)
Stromboli (Eolian Islands, Italy): strombolian explosions from summit crater, intermittent lava flows (updated 7 Jul 2014)
Suwanose-jima (Ryukyu Islands): strombolian activity in summit crater (updated 19 Jun 2014)
Ubinas (Peru): degassing, sporadic small explosions and ash venting (updated 7 Jul 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): ash emissions (updated 19 Jun 2014)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 1 May 2014)
Etna (Sicily, Italy): new lava flow from vent at E base of NE crater (updated 19 Apr 2014)
Fuego (Guatemala): strombolian explosions from summit crater, intermittent lava flows (updated 7 Jul 2014)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 27 May 2014)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 3 Jul 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kelud (East Java): steaming, activity at crater unknown (updated 2 Mar 2014)
Kerinci (Sumatra): seismic unrest (updated 5 Jun 2013)
Krakatau (Sunda Strait, Indonesia): degassing (updated 31 Mar 2014)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): currently calm (updated 1 Jul 2014)
Piton de la Fournaise (La Réunion): short-lived eruption during 21-22 June (updated 23 Jun 2014)
Poas (Costa Rica): occasional small phreatic explosions, intense degassing (updated 23 Jun 2014)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 3 Jul 2014)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): weak ash explosions (updated 26 Aug 2013)
Rasshua (Central Kuriles)
Raung (East Java): strombolian activity in summit crater (updated 5 Aug 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 12 Apr 2014)
San Miguel (El Salvador): gas and ash emissions (updated 2 Jul 2014)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): possibly lava fountaining episodes in summit crater (updated 1 Jul 2014)
Sinabung (Sumatra, Indonesia): effusion of viscous lava, steaming, ash emissions (updated 3 Jul 2014)
Soputan (North Sulawesi, Indonesia): degassing, seismic crisis, eruption warning (updated 1 May 2014)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)

Vorig nieuws
The effusive vent this morning (Milo webcam, INGV Catania)
Sunday, Jul 06, 2014
Etna (Sicily, Italy): A new effusive vent opened yesterday afternoon on the eastern base of the North-East crater feeding a small lava flow. ... [meer...]
Thermal image of the northeastern vents and the upper Sciara del Fuoco (INGV Catania)
Saturday, Jul 05, 2014
Stromboli (Eolian Islands, Italy): Activity decreased again last night, and the latest lava flow (almost) stopped. Very weak lava effusion continues from the NE hornito vent ("N2" in INGV Catania's nomenclature) at the time of this update. ... [meer...]

Friday, Jul 04, 2014
Stromboli (Eolian Islands, Italy): A second, powerful surge of lava, again from the NE vent, started short time ago and has been feeding a new lava flow that quickly descended several 100 meters the upper Sciara del Fuoco (s. video below). ... [meer...]
The crater terrace of Stromboli this morning (Pizzo webcam, INGV Catania).
Wednesday, Jul 02, 2014
Stromboli (Eolian Islands, Italy): The activity, although still quite intense for Stromboli standards, has decreased. No new or only very small lava overflows occurred from the vents. ... [meer...]

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