Volcanic activity worldwide 14 Nov 2013: Sakurajima, Klyuchevskoy, Popocatépetl, Reventador, Sinabu...

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VolcanoDiscovery-Nov 14,2013

Etna (Sicily, Italy): Activity at the New SE crater has decreased during the night, but probably weak strombolian explosions still occur from time to time. At the moment, weather is very bad and visible observations difficult. The tremor decreased as well, but has gained again and continues to show an overall increasing trend, similar to the days before the 10-11 Nov paroxysm.

The last recorded signal from the Torre del Filosofo seismic station (ETFI), showing the tremor intensity at unprecedented levels. If the eruption size is more or less proportional to the integral of the tremor amplitude, this illustrates the size of the paroxysm:

Klyuchevskoy (Kamchatka): The volcano remains active. It produces a variable but often intense steam plume with possibly some ash. On webcam images, there are sporadic small explosions visible, suggesting that weak strombolian activity continues at the summit. A large steam ring was produced this morning

Aso (Kyushu): The Japan Meteorological Agency reported in its latest activity summary (for September 2013) a seismic crisis that started on 23 September evening. An survey of SO2 emissions 2 days later showed an increase of gas release as well, suggesting a magmatic intrusion was taking place. No eruption has taken place since then.
Japanese volcanologists immediately raised the alert level from 1 to 2, as there is a possibility of sudden explosions that could throw blocks to distances of perhaps as far as 1 km. The new alert level means that the active Nakadake 1 crater is currently closed for access.
In late September seismicity remained high, but with a declining trend. No other information was given in the report.

Sakurajima (Kyushu, Japan): The volcano has picked up activity again. Over the past days, the Showa crater has been producing near-constant ash emissions and several vulcanian explosions with ash plumes rising up to 14,000 ft (4.2 km) altitude.

You are invited to read more: http://www.volcanodiscovery.com/volcano-activity/news/38792/Volcanic-activity-worldwide-14-Nov-2013-Sakurajima-Klyuchevskoy-Popocatpetl-Reventador-Sinabu.html

 

 

 

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