Volcanos

Roundup of Global Volcanic Activity:

Etna (Sicily, Italy): Weak strombolian activity and ash emissions continue from the New SE crater. Tremor amplitude continues to rise very slowly.

Klyuchevskoy (Kamchatka): Strombolian activity, strong degassing, and the effusion of a lava flow on the upper flank continue.

Sakurajima (Kyushu, Japan): Activity remains at high levels with near-constant ash venting and frequent and often large vulcanian explosions (ash plumes rising to 10,000 ft / 3 km altitude and more).

Batu Tara (Sunda Islands, Indonesia): Eruptions that produce relatively large ash plumes spotted on satellite imagery, and typically rising to 7-8,000 ft (2.1-2.4 km) altitude, have been occurring daily over the past days.

Sinabung (Sumatra, Indonesia): No more eruptions have taken place during the past days.Authorities allowed about 6,000 of the more than 10,000 reported evacuees to return to their homes.

Dukono (Halmahera): Activity (strombolian to vulcanian explosions from the crater) is currently at relatively high levels. An ash plume rose to 10,000 ft (3 km) altitude yesterday, and a weak SO2 plume can be detected on satellite data.

Lokon-Empung (North Sulawesi, Indonesia): No more explosions have occurred and degassing also has been much reduced recently. While the latest eruptive phase seems to be thus over, it is only a matter of time when the next one will occur.

Kilauea (Hawai'i): Lava effusion through the tube system of the Peace Day flow continues. Due to blocking of the former tube, new breakouts of surface flows are currently found and accessible on the upper pali in the Royal Gardens area at about 16000 ft elevation (about 3-4 hours one way hike).

Veniaminof (Alaska Peninsula, USA): The Alaska Volcano Observatory recently lowered the alert status from Orange/Watch to Yellow/Advisory. Although some weak tremor continues to be recorded under the caldera, no more eruptive activity seems to have taken place during the past weeks. The lava flows and the new cinder cone that was built inside the caldera are now cooling.

Popocatépetl (Central Mexico): No significant changes in activity have occurred. The number of small emissions has sunken to less than one per hour average. The largest during the past 24 hours occurred this morning producing an ash plume rising 1.5 km above the crater.

Santa María / Santiaguito (Guatemala): After the violent explosion and partial dome collapse 3 days ago, the lava dome has returned to its typical comparably low activity. Two explosions of moderate size were observed this morning at 5:47 and 6:00 am local time, with ash plumes rising about 500 m. Ash fall occurred in the area of Monte Claro.

Pacaya (Guatemala): INSIVUMEH reports continuing strombolian activity with explosions at intervals of 30 seconds to 3 minutes. Glowing bombs are thrown to heights of 50-100 m above the rim of the crater.

Fuego (Guatemala): A new lava flow has appeared during the past days and is currently flowing from the summit crater towards the Trinidad canyon (SE side) with a length of 300 m this morning. Weak glowing avalanches detach from its front. Explosive activity in turn has weakened and consisted of strombolian eruptions with ash plumes of 2-400 m height and incandescent material being ejected to about 100 m above the crater.

Reventador (Ecuador): Activity (as far as could be observed) has been a bit calmer with less frequent explosions during the past days, but essentially remains unchanged. Seismic activity is at moderate to high levels and a thermal hot spot is visible at the summit.