Volcanos

Roundup of Global Volcanic Activity:

Stromboli (Eolian Islands, Italy): The volcano remains in a state of elevated activity with the magma column literally overflowing the crater rim. Lava flows are active on the upper slopes of the NE crater. Tremor and explosion signals are sometimes reaching medium-high levels.

Etna (Sicily, Italy): Weak strombolian activity has been taking place from the New SE crater since last night. At the moment, the tremor signal is still low. It will be interesting to see whether (and when) this activity will increase in the near future.

Kamchatka: There are no significant changes in activity at any of the volcanoes in Kamchatka: Fluid lava continues to erupt from Tolbachik volcano, accompanied by stable, still relatively high tremor levels. Moderate seismicity suggests ongoing lava extrusion and dome building at Sheveluch and Kizimen. Low seismic activity was reported from Karymski and Klyuchevskoi volcano. The strong seismicity from Tolbachik obscures the signals from Bezymianny, which also continues to slowly build a lava dome. Gorely continues to show medium levels of tremor caused by fluid movements and strong degassing.

Paluweh (off Flores Island, Indonesia): A report published by the Indonesian Volcanological Survey (VSI) indicates that the intense eruptive phase on 3 Feb caused the collapse of about 1/4 of the volume of the dome, a little more one million cubic meters. VSI points out that the main hazard zones for pyroclastic flows, if the dome continues to grow, include now also the valleys to the west and south-east, in addition to the open valley to the south.

Kilauea (Hawai'i): Not much has changed recently at the ongoing eruption. At the summit, the lava lake level stabilized at 31 m (100 ft) below the Halema`uma`u Crater floor. At Pu`u `O`o cone on the east rift zone, lava flows continued to spread out on older flows to the north of the cone. To the southeast of Pu`u `O`o, lava continues to enter the ocean in multiple areas both inside and outside the National Park boundary. (HVO daily update)

Popocatépetl (Central Mexico): Strong gas emissions (SO2) and night-time glow indicate continuing magma supply. The number of emissions has decreased to less than 1 every 2 hours on average.

Santa María / Santiaguito (Guatemala): A pyroclastic flow occurred from the NE side of the lava dome and reached the base of Santa Maria mountain. Visual observations over the past days were generally poor due to cloud cover. The same goes for Fuego volcano, from which only weak rumblings were heard.

Reventador (Ecuador): After a phase of more intense activity yesterday, the volcano has been quieter today. Tremor has decreased, but there are still many volcanic earthquakes and explosion signals. A MODIS hotspot indicates that some lava extrusion probably continues at the summit.