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Volcanic activity worldwide 22 Jul 2013: Santa María / Santiaguito, Pacaya, Fuego, Popocatépetl, M...

Monday Jul 22, 2013 17:04 PM |

Multilope pyroclastic flows (block and ash flows) yesterday morning at Kizimen (annotation by Culture Volcan)
Multilope pyroclastic flows (block and ash flows) yesterday morning at Kizimen (annotation by Culture Volcan)
Explosion with lightnings from Sakurajima at 20:02 on 21 July
Explosion with lightnings from Sakurajima at 20:02 on 21 July
SO2 plume from Bagana volcano (NOAA)
SO2 plume from Bagana volcano (NOAA)
Seismic signal last night from Pacaya (PCG station, INSIVUMEH)
Seismic signal last night from Pacaya (PCG station, INSIVUMEH)
Seismic signal last night from Fuego (FG3 station, INSIVUMEH)
Seismic signal last night from Fuego (FG3 station, INSIVUMEH)
Strombolian activity from Tungurahua in the night of 19 July (photo P. Ramón - OVT/IGEPN)
Strombolian activity from Tungurahua in the night of 19 July (photo P. Ramón - OVT/IGEPN)
Kizimen (Kamchatka): (22 Jul) A rock spine that had been growing at the summit of the active lava dome has collapsed, producing pyroclastic flows and an ash plume rising to 20,000 ft (6 km) altitude.
Culture Volcan posted the following time-lapse video from KVERT webcam images:
... [read more]

Shiveluch (Kamchatka): (22 Jul) An explosion and/or partial dome collapse produced an ash plume rising to 15,000 ft (4.7 km) last night and drifting east (Tokyo VAAC).

Sakurajima (Kyushu, Japan): (22 Jul) A strong vulcanian explosion occurred last night at 11:02 GMT (20:02 local time), following several hours of near complete calm at the volcano. A loud cannon-shot bang accompanied the explosion, which generated a large mushroom cloud that reached 12,000 ft (3.7 km) altitude and engulfed the NE half of the Sakurajima peninsula and was followed by several smaller ones within about half an hour.
The volcano and much of the surrounding areas remained under the ash plume for several hours until it started to clear up again. In the hours after the explosion, the Showa crater continued to emit ash plumes in often near-continuous pulses, sometimes reaching several 100 m height, but with no visible incandescence or audible sounds.

Bagana (Bougainville Island, Papua New Guinea): (22 Jul) An small SO2 plume is seen on satellite images drifting from Bagana volcano. This suggests continuing activity.

Merapi (Central Java): Merapi volcano, on the island if Java, Indonesia produced a moderate emission of ash earlier today.
Locals reported an eruption of dark red material to a height of 1 km was reported. Rainfall that was occurring at the time, mixed with the ash to create a heavy mud that forced locals to evacuate the slopes of the volcano.
... [read more]

Popocatépetl (Central Mexico): (22 Jul) The volcano has quieted down and produces only smaller emissions of mainly steam and gas at rates of 1-2 per hour.

Santa María / Santiaguito (Guatemala): (22 Jul) Activity remains low with no significant changes. Few explosions occur, but the lava flow on the southern slope of the Caliente dome remains weakly active.

Pacaya (Guatemala): (22 Jul) Activity has dropped at bit apparently. Although the seismic signal suggests that small strombolian-type explosions still seem to continue, INSIVUMEH reported only degassing and no sounds of explosions heard.

Fuego (Guatemala): (22 Jul) There are no significant changes in activity, which remains weak (8 small to moderate explosions during 20-21 July) and mainly effusive; the lava flow on the southern side was about 300 m long and produced small avalanches of blocks towards the Taniluya canyon.

Tungurahua (Ecuador): (22 Jul) An increase of activity occurred yesterday. IGPEN recorded 3 strong pulses of volcanic tremor since midnight 20-21 July (local time), which were accompanied by strombolian activity and strong explosions that produced loud roars, heavy gunfire sounds, and vibrations that rattled floors, windows and doors of houses in areas nearby. Some were heard even in the Tungurahua Volcano Observatory (OVT), located 14 km north of the volcano.
The largest explosion yesterday at 14h18 (local time) generated an eruption column of 5 km height moving east.
... [read more]

Volcano Activity Summary for 22 Jul 2013:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 5 Jul 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): lava flow on upper eastern flank (updated 19 Jul 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 22 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 22 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)
Paluweh (off Flores Island, Indonesia): active growing lava dome (updated 20 Jun 2013)
Popocatépetl (Central Mexico): near continuous explosions (updated 22 Jul 2013)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): weak explosions and ash emissions (updated 14 Mar 2013)
Reventador (Ecuador): lava flow on upper southern flank, numerous small to moderate explosions (updated 21 Jul 2013)
Sakurajima (Kyushu, Japan): constant ash emissions and strong explosions (updated 22 Jul 2013)
Santa María / Santiaguito (Guatemala): Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 22 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 22 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): strong strombolian activity and vulcanian explosions (updated 22 Jul 2013)
Veniaminof (Alaska Peninsula, USA): effusion of lava flows (updated 18 Jul 2013)
Yasur (Tanna Island, Vanuatu): strong strombolian activity (level 3), crater currently closed (updated 29 May 2013)

Eruption warning / minor activity:

Bagana (Bougainville Island, Papua New Guinea): ash explosions (updated 22 Jul 2013)
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): steaming, occasional ash eplosions (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): moderate gas and ash plume on 22 july (updated 22 Jul 2013)
Nevado del Ruiz (Colombia): occasional ash venting (updated 20 Jun 2013)
Nyamuragira (DRCongo): steaming/degassing from pit inside summit caldera (updated 18 Jul 2013)
Pacaya (Guatemala): weak to moderate strombolian activity (updated 22 Jul 2013)
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)
Rincón de la Vieja (Costa Rica): small phreatic eruption on 11 April (updated 6 Oct 2012)
Sacabaya (Northern Chile, Bolivia and Argentina)
Sangay (Ecuador): no recent explosions reported (updated 24 May 2013)
Ulawun (New Britain, Papua New Guinea): steaming, occasional weak ash emissions (updated 20 Jul 2013)
Villarrica (Central Chile): weak deep-seated explosive activity, steaming (updated 20 Jan 2013)

Vorig nieuws
Eruption of Sakurajima just before midnight 20-21 July (local time)
Sunday, Jul 21, 2013
Sakurajima (Kyushu, Japan): (21 Jul) The volcano continues to produce relatively frequent and strong ash-rich explosions, but activity has decreased a bit compared to previous days. During last night, it had long-lasting (up to 1-2 hours) phases of continuous ash emissions of various intensity, with dense plumes up to about 500 m height, but completely silent and with no visible incandescence. During other phases, it was emitting a small plume of vapour with some dilute ash. ... [meer...]
Friday, Jul 19, 2013
Sakurajima (Kyushu, Japan): An ash plume at 20,000 ft (6 km) altitude was reported this morning at 03:08 GMT (12:08 local time). This would be the largest explosion of the volcano in at least 1 year. ... [meer...]
Map of recent earthquakes at Mt Churchill volcano in eastern Alaska
Friday, Jul 19, 2013
Churchill (United States, Eastern Alaska): A seismic swarm with magnitudes up to 3.5 has been occurring in the Wrangell Arc about 40 km NE of Mt. Churchill volcano during the past few days. The intensity and frequency of the quakes has calmed down yesterday. ... [meer...]
Current seismic recording from Veniaminof (VNHG station, AVO)
Thursday, Jul 18, 2013
Sakurajima (Kyushu, Japan): Activity has remained at very high levels, as if the volcano greets the scientific community arriving from all over the world for the 20-24 July IAVCEI conference. During yesterday and the day before, at least 14 explosions were recorded, many of which of moderate to large size with ash plumes up to 15,000 ft (4.5 km) altitude. ... [meer...]
Wednesday, Jul 17, 2013
Reventador (Ecuador): The IG reported that in the last few days, increased seismic activity indicative of increased eruptions has been noticed at the volcano. Seismic data also indicated the presence of a lava flow travelling down the SW slope of Reventador's intracaldera cone. ... [meer...]

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