Eruption of Sierra Negra volcano on Isabela Island in the Galapagos
It was preceded by a seismic swarm with earthquakes characterized by a depth between 3 and 5 km below the volcano and magnitudes up to M4.6.
Since a M4.2 at 13:38 TG, the amplitude of seismicity and infrasonic signals have greatly increased. Galapagos National Park staff report rumbles coming from the Chico volcano (the other name of Sierra Negra), suggesting the beginning of the eruption.
According to park rangers, lava flows inside the caldera and on the northern flank of the volcano towards Bahia Elizabeth.
Isabela Island is populated. Authorities have ordered the evacuation of 50 residents. Tourist access to Sierra Negra volcano and to El Cura area hs been restricted.
This is the second eruption in the Galapagos islands in 10 days after the nearby La Cumbre volcano / Fernandina Island erupted on June 16, 2018.
Eruption of Cleveland volcano in Alaska
Agung volcano refuses to go back to sleep in Bali Indonesia. Activity seems to be picking up again! Plenty of flights cancelled
The day started with weak but steady steam/smoke coming out of the crater. This increased in strength later in the day, and remains pretty much continuous. 57 blowing tremors were recorded between 06:00 and 18:00. After sunset, a steady glow can be observed in the crater, indicating a flow of fresh lava up into the crater. There are reports of sand and stones starting to fall outside the confines of the crater.
PVMBG issued a summary press release this evening that describes the current situation very well. The key conclusion is that at long as we have continuous emission of gases and steam/smoke, any eruption is likely to be effusive – that’s good. If the glow and steam/smoke stops, that would indicate the pipes leading to the crater have become plugged, and the risk of an explosive eruption start increasing. The status of Gunung Agung remains at Level III (Siaga), with a 4 km exclusion zone around the crater.