Volcanic activity worldwide 5 Dec 2015: Bromo volcano, Rinjani, Telica, Momotombo, Etna
Samstag Dez 05, 2015 21:00 |
Lava fountain during Etna's 4th Voragine paroxysm
Lava fountain and ash plume from Voragine
Explosion at Etna's Voragine this morning
Lava fountain from Etna, around 1 km tall, this evening
Explosion from Rinjani's Barujari cone on 1 Dec 2015
Bromo volcano this morning (PVMBG)
Telica volcano's crater in calm yesterday
Etna (Sicily, Italy): The speed at which activity increases is truly impressive. Even from webcams located more or less downwind (i.e. receiving much ash blocking clear view), the lava fountain is now visible clearly.
Momotombo volcano last night
The 4th lava fountaining episode in less than 3 days has began at Etna's Voragine. Intermittent strombolian activity, elevated throughout the day since the end of last night's paroxysm, has now merged into sustained jets (fountains) of lava. An ash plume is again rising several kilometers.
At the time of updating, this activity is still increasing.
After the third paroxysmal phase (tall lava fountaining) at the Voragine yesterday evening around 22:00, activity in the form of strong, frequent strombolian explosions and lava spattering continued all night and into the morning.
Tremor remains high, suggesting that the current phase is in fact not over (and more paroxysm could occur). Small incandescent ejections and ash emissions also take place from the small new pit crater on the upper eastern flank of the New SE crater.
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After only about 12 hours since this morning's lava fountaining episode, another paroxysm occurred this evening.
Activity from the Voragine (and minor activity from New SE crater) had in fact not ceased at all after the peak of the paroxysm this morning, but remained with intense strombolian explosions and ash emissions. Tremor had remained elevated.
... [read more]
Rinjani (Lombok): (5 Dec) The volcano continues to erupt, but activity has decreased a lot. When visited during 30 Nov - 2 Dec, "the volcano erupted just 2-3 times eruption per day", but some explosions were fairly big (s. image attached).
Bromo (East Java, Indonesia): (5 Dec) An eruption warning was issued this morning - PVMBG raised the volcano's alert status to "siaga" (alert), or 3 on a scale of 1-4.
Seismic activity and degassing from the crater have sharply increased, suggesting that a new eruption could occur any time at the volcano.
Telica (Nicaragua): (5 Dec) The volcano has calmed down, at least at the surface during the past week. Since 29 Nov, no more significant explosions / ash emissions have taken place.
Whether this is in connection with the new eruptive activity at neighboring Momotombo volcano or pure coincidence is up to speculation.
Momotombo (Nicaragua): (5 Dec) Activity at the volcano continues, but at lower intensity than during the first days of the new eruption. Strombolian explosions at the summit crater accompany the emission of a steam-ash plume rising up to approx. 1000 m, an possibly still continued, but very weak lava flow extrusion.
After the more vigorous onset of the eruption on 2 Dec, the new lava flow had reached the base of the summit cone by next morning, where it had branched into two lobes.
Freitag, Dez 04, 2015
Donnerstag, Dez 03, 2015
Etna (Sicily, Italy): After gradually increasing the already mentioned strombolian activity from Voragine during the evening of 2 Dec, it escalated into a short, but very violent phase of lava fountaining (paroxysm), with high lava fountains and an eruption column several kilometers high. ... [mehr]
Mittwoch, Dez 02, 2015
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