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Volcanic activity worldwide 16 Jul 2014: Katla, Santiaguito, Fuego, Sakurajima, Nishino-shima, Zhupanovsky

Wednesday Jul 16, 2014 15:02 PM |

Location and time vs depth of recent earthquakes under Katla volcano
Location and time vs depth of recent earthquakes under Katla volcano
Landsat 8 image of Zhupanovsky's ash plume this morning
Landsat 8 image of Zhupanovsky's ash plume this morning
Landsat 8 images of Nishino-Shima on 2 June and 4 July, showing the new platform to the east (images: AIST, annotation: Culture Volcan)
Landsat 8 images of Nishino-Shima on 2 June and 4 July, showing the new platform to the east (images: AIST, annotation: Culture Volcan)
Katla (Southern Iceland): An increased number of small earthquakes, up to magnitude 2.7, has been occurring near the surface or at very shallow depths under Katla's ice cap since yesterday.
These quakes are most likely related to weight adjustments of the thick ice cap during the ongoing seasonal melting and unlikely to represent a true seismic swarm caused by (internal) volcanic activity.
In the meanwhile, the alert (uncertainty level) for the areas around rivers from the Mýrdalsjökull glacier has been cancelled by Iceland authorities.

Zhupanovsky (Kamchatka, Russia): A new phase of ash emissions occurred this morning and was observed on satellite imagery. An ash plume rose to 23,000 ft (7 km) and drifted north.

Nishino-shima (Volcano Islands): The currently fastest growing island of the world remains active, with both effusive (lava flows enlarging the island) and explosive activity (strombolian and phreatomagmatic = water-magma explosions).
Recent satellite images collected by Culture Volcan prove that over the past month, lava flows have been mostly active towards the eastern part and shore of the island, where a new platform has been built.

Sakurajima (Kyushu, Japan): During the past 10 days, activity at the volcano has been relatively low, with 1-2 small to moderate vulcanian-type explosions registered on average per day.

Santiaguito (Guatemala): Activity seems to have been a bit higher today, as the report of INSIVUMEH's volcano observatory suggests. A moderate explosion was observed this morning, causing light ash fall towards the SW in the area of Finca El Rosario Palajunoj. The active lava flow from the eastern rim of the Caliente dome continues to advance slowly within the 9 May collapse scar.
A hot lahar descended yesterday through the Nima I river valley.
For a great visualization of the topography and recent evolution of the viscous lava flow of Santiaguito, have a look at an excellent recent article on Culture Volcan.

Fuego (Guatemala): Strombolian activity continues at the volcano. Incandescent material is being ejected to up to 200 m height and ash plumes rise to up to 800 m. The recent, short-lived lava flow has disappeared.

Volcano Activity Summary for 16 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 15 Jul 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)
Fuego (Guatemala): strombolian explosions from summit crater, intermittent lava flows (updated 16 Jul 2014)
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 16 Jul 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 16 Jul 2014)
San Miguel (El Salvador): ash emissions, small explosions, increasing tremor (updated 14 Jul 2014)
Sangeang Api (Indonesia): growing lava dome & lava flow (updated 7 Jul 2014)
Santiaguito (Guatemala): generation of hot lahars (updated 16 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)
Sinabung (Sumatra, Indonesia): effusion of viscous lava, steaming, ash emissions (updated 15 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 15 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 15 Jul 2014)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 16 Jul 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)
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 15 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)
Sangay (Ecuador): degassing (updated 24 May 2013)
Shishaldin (United States, Aleutian Islands): possibly lava fountaining episodes in summit crater (updated 1 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
This morning's lava flow on Stromboli
Tuesday, Jul 15, 2014
Stromboli (Eolian Islands, Italy): Another lava overflow from the NE vent occurred this morning, starting around 10:00 local time. It followed a phase of increased activity from the summit vents. ... [meer...]
Strombolian eruption from Stromboli's NE vent yesterday
Monday, Jul 14, 2014
Stromboli (Eolian Islands, Italy): Since 11 July, the volcano has been calmer compared to the previous weeks. No new lava overflows on the Sciara del Fuoco have occurred since 10 July, but who knows if a next surge of magma is already underway soon? ... [meer...]
Lava flow on Stromboli this morning
Thursday, Jul 10, 2014
Stromboli (Eolian Islands, Italy): (10 Jul) Two new lava (over-)flows occurred from the NE vent last evening and this morning. Similar as during the previous episodes, the flows were the result of surges in magma supply, quickly descended the upper part of the Sciara del Fuoco, and then stopped: ... [meer...]
Epicenters of earthquakes at Katla during the past 7 days
Wednesday, Jul 09, 2014
Katla (Southern Iceland): (9 Jul) Earthquakes have been more frequent recently under the volcano recently. Most of them were small (below mag. 3) and shallow events. It is unknown whether these relate to magmatic movements inside the volcano, increased hydrothermal activity or are adjustments of the ice cap due to increased melting. ... [meer...]
View onto the Sciara del Fuoco (INGV webcam)
Tuesday, Jul 08, 2014
Stromboli (Eolian Islands, Italy): (8 Jul) Similar as during the last times, activity is fluctuating. After a few hours of increased lava effusions, it dropped and the new lava overflow creased again yesterday evening. ... [meer...]

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