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Volcanic activity worldwide 9 Jul 2013: Santa María / Santiaguito, Pacaya, Fuego, Popocatépetl, Ve...

Tuesday Jul 09, 2013 14:49 PM |

Evolution of tremor at Tolbachik as given by KVERT (graphic: Culture Volcan)
Evolution of tremor at Tolbachik as given by KVERT (graphic: Culture Volcan)
MODIS hot spot at Chirpoi volcano in the Kuriles (MODIS, Univ. Hawaii)
MODIS hot spot at Chirpoi volcano in the Kuriles (MODIS, Univ. Hawaii)
Current seismic recording from Veniaminof (VNHG station, AVO)
Current seismic recording from Veniaminof (VNHG station, AVO)
Steam and ash plume rising from Popocatepétl today
Steam and ash plume rising from Popocatepétl today
This morning's seismic recording at Telica (TELN station, INETER)
This morning's seismic recording at Telica (TELN station, INETER)
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.

Chirpoi (Kurile Islands, Russia): A hot spot was again detected on MODIS satellite data, which suggests the presence of lava or hot gasses. However, visual satellite images showed no degassing plume, which would have confirmed possible activity at the volcano.

Sakurajima (Kyushu, Japan): A phase of strong activity started last Sunday. Following a week of almost no explosions, a series of relatively strong eruptions has started. On average, 4-5 explosions have occurred per day, with at least 5 stronger ones producing ash plumes to 10-12,000 ft (3-3.6 km) altitude.

Suwanose-jima (Ryukyu Islands): VAAC Tokyo reported a small ash plume from the volcano at 5,000 ft (1.5 km) elevation today. Likely, some stronger strombolian-type explosion has occurred at the volcano, whose activity is similar to Stromboli in Italy.

Veniaminof (Alaska Peninsula, USA): A significant increase in seismic activity has occurred today, which could suggest that the eruption is gaining strength. During the past days, it continued at low but steady levels with no major changes.
AVO reported low-level volcanic tremor and a thermal anomaly as well as occasional observations of weak incandescence indicate continuing lava effusion. Explosive activity, if at all, is minor.

Popocatépetl (Central Mexico): The volcano has been a bit calmer today, but still emits an impressive steam plume with some ash most of the time as well as occasional smaller explosions. VAAC reported the plume height at 22,000 ft (7 km) altitude drifting SW.

Santa María / Santiaguito (Guatemala): Activity, currently low, has not changed significantly. There are occasional explosions of small to moderate size, that eject ash plumes up to 600 m above the crater. The lava flow on the south side of the Caliente lava dome also remained weakly active during the past days.

Pacaya (Guatemala): Mild strombolian activity persists at the volcano's crater. Some explosions can be heard in up to 5 km distance.

Fuego (Guatemala): Activity remains generally stable with infrequent wek to moderate explosions, sometimes accompanied by shock waves felt in nearby villages. Plumes of fine ash rose to 600-800 m height above the crater and drifted for about 10 km before being dispersed, INSIVUMEH reported this morning in its daily update.

Telica (Nicaragua): The seismic swarm continues with high frequency of small earthquakes.

Momotombo (Nicaragua): Seismic activity has decreased again during the past days with fewer earthquakes.
Vorig nieuws
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...]
Infrared image (1) of the explosions at Popocatepétl yesterday (CENAPRED)
Saturday, Jul 06, 2013
Iwo-Tori-shima (Ryukyu Islands): A possible small eruption occurred this morning. Tokyo VAAC received a (pilot) report of an ash plume rising to 7,000 ft (2.1 km) and drifting 40 nautical miles to the north of the small island. No ash could be detected on satellite images, and sometimes weather clouds are mistaken for ash plumes. ... [meer...]
SO2 plume from Ambrym volcano (NOAA)
Friday, Jul 05, 2013
Kizimen (Kamchatka): The lava dome continues to grow and produce hot avalanches on the western and eastern volcanic flanks. KVERT reports moderate seismicity ... [meer...]
Eruption from Popocatepétl this morning
Thursday, Jul 04, 2013
Popocatépetl (Central Mexico): A phase of strong eruptive activity has started last night and is continuing with frequent explosions that eject incandescent bombs onto the upper outer slope and create a plume of gas and ash rising 3-4 km above the volcano to flight level 250 (25,000 ft). ... [meer...]

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