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Volcanic activity worldwide 15 Jul 2013: Popocatépetl, Turrialba, Tungurahua, Sakurajima, Kelimutu

Monday Jul 15, 2013 17:04 PM |

Explosion from Sakurajima late on 14 July 2013
Explosion from Sakurajima late on 14 July 2013
Comparison of the crater lakes in June (l) and July (r) (VSI)
Comparison of the crater lakes in June (l) and July (r) (VSI)
View of Popocatépetl this morning
View of Popocatépetl this morning
Current seismic recording from Turrialba volcano (VTUC station, OVSICORI)
Current seismic recording from Turrialba volcano (VTUC station, OVSICORI)
Webcam image of the eruption of Tungurahua on 14 July (IGPEN)
Sakurajima (Kyushu, Japan): The volcano remains in a state of elevated activity. Ash emission and explosions have been occurring with no break when observed from nearby during the past night:
The volcano constantly emitted dilute to dense ash plumes in the form of both steady plumes or in single puffs. The ash emissions occured in long-lasting phases that were either completely silent or, more often, accompanied by weak to loud hissing and roaring sounds of degassing that swell and decrease in pulses, resembling the sound of airplane turbines. It appears that this activity corresponds to deep-seated strombolian activity. At night, faint glow could sometimes be seen at the crater during the emissions.
... [read more]

Kelimutu (Flores): The alert level of the volcano has been placed back to green (normal) by the Indonesian Volcanological Survey. The increased evaporation and the change of color of two of the three crater lakes, that had prompted the raise in alert status in June, have returned to normal levels or been reverted in July, suggesting that the crisis of the volcano is over.
Montitored parameters as seismic and degassing activity have decreased back to normal levels.

Popocatépetl (Central Mexico): Activity has remained stable, with an average of about 2 emissions per hour of mostly low intensity. No larger explosions have occurred since the past update. Bright glow from the crater and a significant SO2 plume indicate that magma continues to rise within the volcano. Although activity is back to levels comparable to most of the previous months, the alert level remains at Yellow phase 3 (but might be soon lowered again to phase 2).

Turrialba (Costa Rica): A significant earthquake swarm has started late on 13 July at the volcano and is continuing. This could indicate a rise of magma in progress and eventually lead to new eruptions in the near future.

Tungurahua (Ecuador): A large explosive eruption occurred Sunday (14 July) morning, producing a large ash plume that could be seen from Quito (135 km away) and pyroclastic flows. According to Washington VAAC, the ash reached altitudes of 45,000 ft (13 km). The eruption followed a fast build-up of seismic activity, and likely corresponds to a vulcanian-type explosion, where pressure builds up to eject a solid plug that has tapped the vent. Elevated seismic activity had been noted in phases at the volcano during the previous weeks and while not completely unexpected as a potential scenario, the strength of the explosion was a surprise.
The threat and hazard of new pyroclastic flows prompted the government to evacuate people living nearest to the volcano.
... [read more]

Volcano Activity Summary for 15 Jul 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 5 Jul 2013)
Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 7 Jun 2013)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 3 Jun 2013)
Cleveland (Aleutian Islands, Alaska): continuous small eruptions (updated 6 May 2013)
Colima (Western Mexico): frequent explosions from growing lava dome, glowing rockfalls and small pyroclastic flows (updated 25 Apr 2013)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 2 May 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): strombolian activity, new lava flow on upper southern flank (updated 14 Jul 2013)
Gamalama (Halmahera): ash eruptions since 17 Sep (updated 17 Sep 2012)
Grozny (Iturup Island): fumarolic activity (updated 3 Apr 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 5 Jul 2013)
Kizimen (Kamchatka): growing lava dome, lava flow on eastern flank, avalanches (updated 5 Jul 2013)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 12 Jun 2013)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): weak to moderate strombolian activity (updated 9 Jul 2013)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 20 Jun 2013)
Popocatépetl (Central Mexico): near continuous explosions (updated 15 Jul 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): ash emissions, small explosions (updated 14 Mar 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 15 Jul 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 9 Jul 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 5 Jul 2013)
Stromboli (Eolian Islands, Italy): continuing lava overflows (updated 6 Jun 2013)
Tinakula (Santa Cruz Islands, Solomon Islands): increased activity at the volcano (updated 8 Feb 2013)
Tolbachik (Kamchatka): effusion of fluid lava flows (updated 14 Jul 2013)
Tungurahua (Ecuador): large explosion on 14 July destroying the plug of the crater (updated 15 Jul 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 14 Jul 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 29 May 2013)

Eruption warning / minor activity:

Bezymianny (Central Kamchatka Depression): slow lava flow extrusion from dome (updated 10 Jun 2013)
Chirinkotan (Northern Kuriles): unspecified activity - possibly lava flows (updated 8 Jul 2013)
Chirpoi (Kurile Islands, Russia): hot spot visible on satellite imagery (updated 14 Jul 2013)
Copahue (Chile/Argentina): degassing, weak sporadic ash emissions (updated 7 Jul 2013)
Dieng (Central Java): increased degassing (updated 28 Mar 2013)
Etna (Sicily, Italy): steaming, degassing (updated 3 Jul 2013)
Galeras (Colombia): sporadic ash emissions (updated 5 Jul 2013)
Gamkonora (Halmahera): seismic swam, minor ash emissions (updated 27 May 2013)
Gaua (Vanuatu): possible ash eruption on 29 april (updated 29 Apr 2013)
Heard (Australia, Southern Indian Ocean): possible lava lake in summit crater (updated 8 Jul 2013)
Ibu (Halmahera, Indonesia): growing lava dome, seismic unrest (updated 9 Jun 2013)
Iwo-Tori-shima (Ryukyu Islands): possible small ash eruption on 6 July 2013 (updated 6 Jul 2013)
Karangetang (Siau Island, Sangihe Islands, Indonesia): hot spot visible at the summit (updated 9 Apr 2013)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 4 Apr 2013)
Kerinci (Sumatra): occasional ash explosions (updated 5 Jun 2013)
Kikai (Ryukyu Islands): steaming at summit crater of Iodake, occasional weak glows (updated 5 Jun 2013)
Kirishima (Kyushu): degassing, slightly increased seismic activity (updated 30 Jul 2012)
Krakatau (Sunda Strait, Indonesia): occasional explosions (updated 27 Jun 2013)
Langila (New Britain, Papua New Guinea): occasional ash explosions (updated 11 Feb 2013)
Lokon-Empung (North Sulawesi, Indonesia): steaming, degassing, occasional ash explosions (updated 14 Jul 2013)
Manam (Papua New Guinea): strombolian explosions, lava flow on southern flank (updated 25 Jun 2013)
Marapi (Western Sumatra, Indonesia): intermittent mild ash explosions (updated 17 Mar 2013)
Medvezhia (Kurile Islands, Russia): strong steaming, thermal anomaly (updated 17 Jan 2013)
Merapi (Central Java): slowly growing lava dome, occasional small explosions (updated 15 Jun 2013)
Nevado del Ruiz (Colombia): occasional ash venting (updated 20 Jun 2013)
Nyamuragira (DRCongo): Fort dégazage du cratère sommital (updated 27 Apr 2012)
Papandayan (West Java): strong hydrothermal activity, increased seismicity (updated 6 May 2013)
Poas (Costa Rica): Small phreatic explosions on 29 October (updated 1 May 2013)
Rasshua (Central Kuriles)
Reventador (Ecuador): steam and ash emissions (updated 7 Jul 2013)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sabancaya (Peru): seismic unrest (updated 11 Jun 2013)
Sacabaya (Northern Chile, Bolivia and Argentina)
Sangay (Ecuador): no recent explosions reported (updated 24 May 2013)
Suwanose-jima (Ryukyu Islands): strombolian activity and occasional ash emissions (updated 9 Jul 2013)
Turrialba (Costa Rica): ash venting, strong degassing (updated 15 Jul 2013)
Ulawun (New Britain, Papua New Guinea): ash emissions and rumblings heard (updated 23 Mar 2013)
Villarrica (Central Chile): weak deep-seated explosive activity, steaming (updated 20 Jan 2013)

Vorig nieuws
Location of quakes during the past 2 weeks (IGN)
Sunday, Jul 14, 2013
El Hierro (Canary Islands, Spain): (14 Jul) Small clusters of earthquakes continue to occur in two areas, at 10-20 km depth, one located beneath the central area of the island and the second under an area off the western tip. Overall, seismic activity has remained low and shows a decreasing trend over the past months. ... [meer...]
Current seismic recording from White Island (GeoNet)
Wednesday, Jul 10, 2013
Sakurajima (Kyushu, Japan): Strong activity continues. This morning, a relatively large vulcanian-type explosion produced a plume rising to 14,000 ft (4.3 km) altitude. The the volcano continued to emit ash for several hours following the explosion. ... [meer...]
Evolution of tremor at Tolbachik as given by KVERT (graphic: Culture Volcan)
Tuesday, Jul 09, 2013
Tolbachik (Kamchatka): While the activity of lava effusion from the southern vent continues, the recent tremor measurements of KVERT have been showing a decreasing trend since mid June, after having been stable or even rising a bit since April. This means that the effusion rate is likely decreasing as well, but still, it is difficult to predict when the eruption will eventually end. ... [meer...]
Aerial view of the crater of Popocatepetl on 7 July (CENAPRED)
Monday, Jul 08, 2013
Chirinkotan (Northern Kuriles): Weak steam-gas emission was observed on 3 July, and a thermal anomaly was observed on 4 July on satellite data, SVERT reports. It is not known what sort of activity is currently occurring at the volcano. ... [meer...]
SO2 plume from Popocatépetl yesterday (NOAA)
Sunday, Jul 07, 2013
Popocatépetl (Central Mexico): The intensity of the current eruptive phase remains high. A phase of particularly strong tremor accompanying continuous explosions and ash emissions occurred this morning. ... [meer...]

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