Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 20 kts in W direction. When observed yesterday evening, the lower vent on the NW flank of the cone, which had been a site of near-constant low, liquid fountaining gradually ceased to produce fountains, but it seems that the energy then went to the NW summit vent, which started an impressive show of violent, near vertical fountaining reaching 3-500 m height: Suwanose-jima (Ryukyu Islands): Explosive activity continues. The upper vents produce tall pulsating lava fountains, with moderate ash plumes. Some of the lava still finds its way to the sea entry, which is growing slowly. 8 vents in total are active producing several lava flows, some of which seem to go directly into lava tubes, others overlapping older flows or feeding more or less stable lava channels. (Check the latest lava flow maps in high res at the Copernicus mapping site). 50 m width and there is no explosive activity at its vent. The flow forms an impressive channel of approx.
The new lava flow from the separated vents just below the northwestern base of the erupting cone slowly make their way through so-far untouched land north of the existing flow field, destroying additional buildings and other infrastructure so far spared. The lava output rate remains very high and volcanic tremor is stable at high levels.
3 Oct: The eruption continues at impressive intensity. The full report is as follows: ERUPTION AT 20210919/1410Z ONGOING ASH EMISSION OBS VA DTG:03/1500Z to 10000 ft (3000 m). Volcanic Ash Advisory Center (VAAC) Toulouse warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 and is moving at 10 kts in SW direction. Satellite image of Langila volcano on La Palma (Canary Islands (Spain)): Explosive activity continues.
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