Roundup of Global Volcanic Activity
Dukono (Halmahera): Ash emissions from the volcano remain intense, suggesting near continuous ash-venting activity inside the crater. Almost every day, VAAC Darwin reports ash plumes drifting from the volcano as altitudes around 7,000 ft (2.1 km) and extending several tens of kilometers.
Ubinas (Peru): A small explosion occurred at 16:35 local time on 1 October. It generated a small ash plume that rose a few hundred meters and quickly dissipated.
Piton de la Fournaise (La Réunion): The eruption continues with little changes overall. The lava flow field gradually expands (and thickens) towards the southeast from the vents, with the most distant flow fronts now being around 2600-2700 m away. A slight increase in tremor has been noted over the past week, but volcanologists believe that it is probably due to rainwater infiltration. An inversion of the deformation trend has been detected as well: now, the upper part of the central Dolomieu cone seems to have started to deflate, which could indicate a beginning exhaustion of magma supply.
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