Roundup of Global Volcanic Activity

Etna (Sicily, Italy): Sporadic small explosions continue at the New SE crater sometimes with pyroclastic material ejected outside the crater. In April the seismic tremor was characterized by regular cyclic increases of amplitude forming evident stripes on seismograms. This phenomenon called “banded tremor” gradually became less evident and ended on 2 May coincident with a strong seismo-volcanic event occurred most probably at the Bocca Nuova crater.

Kilauea (Hawai’i): Eruption activity remains high on Kilauea, both at the summit and east rift zone. The lava lake within Halemaumau crater at the summit of Kilauea has fluctuated around an estimated 35m (115ft) below the crater floor. The glow produced at night from this lava lake is as bright as ever! At Pu’u ‘O’o cinder cone on the east rift zone, we have seen several new flows including some spilling over to the south. These flows got so close to the webcams that the USGS had to move some of them (seen in this photo). Flows also continue north east of Pu’u ‘O’o although they seem to be weakening. Earthquake activity and gas emissions continue to be elevated at the summit, as well as along the east rift zones.

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