Volcanic activity worldwide 29 Mar 2016: Santiaguito volcano, Pacaya, Fuego, Pavlof, Sakurajima, Momotombo
Tuesday Mar 29, 2016 21:00 PM |
Spectacular explosion from Sakurajima's Minamidake crater on 26 March (image: Naoto Yoshidome / twitter)
Eruption of Pavlof on 28 March 2016 (image: Almandmoss, Nahshon / Alaska Coast Guard / AVO)
Hot spot visible on Landsat 7 image from 23 Mar (image: Rüdiger Escobar Wolf @rudigerescobar / twitter)
Lava fountains from Fuego during the night 25-26 Mar 2016
Sakurajima (Kyushu, Japan): Over the past days, vulcanian-type explosions have again picked up in number and size, after only very few events during the first 3 weeks of March. Ash plumes rose to up to 10-12,000 ft (3-3.6 km) altitude.
Moderately strong explosion at Momotombo on 26 March
The remarkable novelty is that most of the recent explosions occurred from the Minamidake crater, the volcano's old summit vent, and not from the Showa crater on its eastern flank, which had been (an almost exclusive) protagonist during the 10 years since 2006 until very recently.
Pavlof (Alaska Peninsula, USA): (29 Mar) A new eruption started at the volcano abruptly Sunday (27 Mar) afternoon at 16:16 local time (00:18 UTC). An explosive eruption with lava fountaining produced an ash plume that quickly rose to approx. 20,000 ft elevation (6 km) and the Aviation Color code was raised to red.
The activity continued and reached its peak over the next 24 hours, when a sustained, continuous ash plume extended more than 700 km (400 miles) to the northeast over interior Alaska, with a maximum height of 37,000 ft (9 km) altitude.
... [read more]
Santiaguito (Guatemala): Activity continues at the Caliente lava dome with little changes. The volcano observatory reported strong degassing, some weak to moderate explosions with ash plumes rising up to approx. 900 m and constant block lava avalanches on the eastern and southeastern flanks of the lava dome.
The latter suggests that effusive activity has been elevated recently compared to during previous months.
Pacaya (Guatemala): Mild activity continues at the intra-crater cone of the Mackenney crater. INSIVUMEH reports a steam and gas plume rising 600 m and glow from lava visible at night.
Fuego (Guatemala): After its latest paroxysm a few days ago, activity of the volcano has returned to normal levels with intermittent (one every few hours) weak to moderate-sized strombolian explosions.
During the past week, activity at the volcano gradually increased into the 5th paroxysm in 2016, generating pulsating lava fountains, lava flows and possibly pyroclastic flows.
... [read more]
Momotombo (Nicaragua): A slight increase in activity occurred last week between 23-26 March, when the volcano again produced some mild to moderate explosions, some of which were strong enough to send bombs to its upper outer slopes.
During the past days, activity has again been calmer, although crater glow continues to tell the presence of fresh lava in the summit crater.
Saturday, Mar 26, 2016
Tuesday, Mar 22, 2016
Alaid (Northern Kuriles): The new eruptive phase that started in late February continues. An intense thermal anomaly has been detected from the volcano's summit area on satellite imagery and weak ash emissions extending approx. 60 km NW from the island were observed yesterday and this morning (Tokyo VAAC). ... [more]
Monday, Mar 21, 2016
Dukono (Halmahera): The activity at the volcano remains intense. Our friend Patrick Marcel who visited the volcano last week reported that the vents at the bottom of the crater emitted a sustained, extremely noisy jet of gas, steam and ash, and ejected incandescent bombs to up to 500 m height. Some of them landed outside the crater rim. ... [more]
Tuesday, Mar 15, 2016
Monday, Mar 14, 2016