lundi, juin 10, 2013
Photo of the Day: Strombolian activity from the New SE crater of Etna during the build-up phase of the 27 April paroxysm (26 April evening
dimanche, juin 09, 2013
Veniaminof (Alaska Peninsula, USA): Over the past 2 days, AVO has detected gradually increasing seismic tremor beneath Veniaminof and therefore raised the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. ...plus [lire toutes]
Ibu volcano (Halmahera Island, Indonesia): lava dome overtopping crater rim poses risk of pyroclastic flows
As the Indonesian Volcanological Survey (VSI) specified in its latest bulletin, parts of the active lava dome of the volcano have recently (early June) grown higher than the northern crater rim, where it is cut by a valley extending to the northern feet of the stratovolcano. Therefore, potential continued growth of the dome poses the risk of rockfalls and pyroclastic flows reach the northern flanks, where a number of villages are located, namely Pasilulu and Talen. ...plus [lire toutes]
Photo of the Day: Lava flow on the Sciara del Fuoco in January 2013, Stromboli volcano, Eolian Islands, Italy
samedi, juin 08, 2013
Pavlov (Alaska Peninsula, USA): Weak eruptive activity continues, producing small steam and ash plumes drifting at about 18-20,000 ft (5-6 km) altitude SSE as detected on satellite data (VAAC Anchorage). ...plus [lire toutes]
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vendredi, juin 07, 2013
Volcanic activity worldwide 7 Jun 2013: Etna, Pacaya, Fuego, Popocatépetl, Ibu, Pavlov, Sakurajima,...
Etna (Sicily, Italy): During a visit to the summit craters today, we could observe a new hot fumarole in the western pit of the Bocca Nuova, increased bluish degassing from a vent in the saddle between the old and new SE crater and hear deep-seated explosions inside the NE crater. ...plus [lire toutes]
The alert level of the volcano was raised to 3 ("Siaga", "alarm") on a scale of 1-4 by the Indonesian Volcanological Survey.
jeudi, juin 06, 2013
Stromboli (Eolian Islands, Italy): When observed during 3-6 June, the volcano was at normal levels of activity which had not changed significantly since our last visit 2 weeks ago. On the crater terrace, about 7 active vents were present, with eruptions every about 15-20 minutes: the two vents in the NW crater sometimes erupted simultaneously, one with low ejections of blocks, scoria and ash, the other with loud turbine-like jets of gas and lava fragments that often reached about 250 m height. The hornito at the NW crater rim was not seen erupting. ...plus [lire toutes]
mercredi, juin 05, 2013
Tolbachik (Kamchatka): Activity continues with little changes, although the slow trend of decreasing seismic activity persists. A small lava lake 20 m across and weak strombolian activity were recently observed by Russian volcanologists who visited the site. Lava flows continue to be alimented and spread mainly to the SE. ...plus [lire toutes]
VSI raised the alert level of the volcano on Flores, famous for its 3 differently colored crater lakes, from 1 to 2 ("normal" to "waspada", "watch") on a scaled of 1 to 4, after one of the 3 crater lakes turned from blue to white on 3 June. In addition, a strong smell of sulfur was noted by people from Pemo village a few kilometers south. ...plus
An small eruption occurred last Sunday (2 June) at 8:43 am (local time), preceded by a rise in seismic activity reported by the local volcano observatory. An ash explosion produced a small rising 300-600 m and light ash fall at Gunung Tujuh about 20 km away. According to local news, the sudden eruption caused panik among inhabitants of Sungai Rumpun village and several evacuated their homes. Some climbers who were on the volcano at the time of the explosions returned unharmed. ...plus [lire toutes]
New ash emissions resumed at approximately 11:00 AKDT (19:00 UTC) this morning and were seen in satellite data and observed by pilots. The new ash plume was drifting SE at approx. 19,000 ft (6 km) a.s.l. altitude. AVO reported weak seismicity beginning at 10:57 AKDT and raised the Aviation Color Code to Orange.
mardi, juin 04, 2013
Volcanic activity worldwide 4 Jun 2013: Santa María / Santiaguito, Pacaya, Fuego, Popocatépetl, Pa...
Pavlov (Alaska Peninsula, USA): No further activity has been detected during the past days. Alert status is at yellow. ...plus [lire toutes]
The alert level of the volcano was lowered from "red" to "orange" in response to a declining trend of seismic activity recorded under the volcano. However, seismic activity remains significant and monitoring efforts continue at maximum level. ...plus
lundi, juin 03, 2013
Mayon (Luzon Island): The alert level for the volcano has been raised by PHILVOLCS. A weak incandescence is sometimes observed at the summit, and slight inflation has been detected, suggesting that magma has started to intrude into the volcanic edifice. ...plus [lire toutes]
The alert level for the volcano has been raised by PHILVOLCS. A weak incandescence is sometimes observed at the summit, and slight inflation has been detected, suggesting that magma has started to intrude into the volcanic edifice. ...plus [lire toutes]
dimanche, juin 02, 2013
samedi, juin 01, 2013
Photo of the Month: Lightning in eruption column from an explosion of Sakurajima volcano, Japan (2013)
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