Nevado del Ruiz, after an increase of the seismic signals associated with the movements of internal fluids, presented tremor on September 4th, associated with an emission of ashes.
Alert level remains at Amarillo / 3 / change in behavior of volcanic activity
Source: Servicio Geologico Columbiano 04,09,2018 / 23:30 local
The Cenapred reports 64 low-intensity exhalations of gas, water vapor and a little ash dispersing to a western sector, as well as nocturnal glow at Popocatépetl.
The level of alert remains the same, associated with the recommendation not to access the volcano and the crater.
The aviation code was raised for the second time in two days at Veniaminof, changing to orange.
The seismic activity remains high and small ash emissions observed on the webcam, and confirmed by observers in Perryville.
At Etna, the new crater southeast produced this September 5 at 6:15 and 8:36, two loud explosions audible from the coast, accompanied by emission of a plume of ashes.
Source: EtNative / Grazia Emme
Lo'ihi Seamount - Pele's pit crater near the summit of the submarine volcano, covered with iron oxide - photo E / V Nautilus - Nautilus live29.08.2018
Exploration by E / V Nautilus team of the Lo'ihi seamount continues.
Examination of the hydrothermal activity revealed rocky areas near its summit and the Pele's pit crater covered with a yellow carpet of iron oxide deposits, produced by the active vents or by iron-consuming microbes.
This oceanic environment would be similar to other environments of the solar system, and could perfect the knowledge about the habitability of other planets.
Source: Nautilus Live