The activity of Bromo is up this Monday, with already five eruptive episodes; a thick plume of ash is observed by the officer in charge of the observation post of the volcano reaching 1,500 meters above the summit.
At the seismicity level, a continuous micro-tremor is recorded, with an amplitude of 0.5-19 mm, the dominant being 3 mm. Volcanic earthquakes are of the order of 29-30 mm of amplitude, with a duration of 47-58 sec.
Note : a tectonic earthquake remote with an amplitude of 32 mm during 253 seconds.
Although the activity is increasing, the level remains at 2 / waspada, with a recommendation not to approach the volcano within a radius of 1 km.
VAAC Darwin reports an orange aviation code.
Sources: BNPB, PVMBG via Wartabromo, and VAAC Darwin
At Anak Krakatau, an eruptive episode is reported on March 18 at 6:05 am WIB, accompanied by a white plume, tilted to the north, reaching about 500 meters above the current summit / about 657 meters asl.
On the seismogram, the maximum amplitude is 55 mm for a duration of 4 min. 3 sec.
The alert level is 3 / siaga, with a prohibited area of 5 km radius. The aviation code is set to orange by VAAC Darwin.
Sources: PVMBG and VAAC Darwin
Also in Indonesia, a magnitude 5.4 earthquake hit Lombok Island on 17.03.2019 at 07:07 UTC; its epicenter is located east of the Rinjani volcano.
He damaged houses, caused landslides and claimed two lives and dozens of injuries.
It is considered as a replica of the sequence of earthquakes that shook the region in July-August 2018.
In Chile, POVI reports a sporadic Strombolian explosion on 17.03.2019 at 0:12 am at Villarica, with expulsion of incandescent material 25 meters above the crater rim.
Small return on the active volcanoes in Kamchatka.
The aviation code remains orange for Sheveluch, Karymsky and Bezimianny.
Annamaria Luongo shared a Sentinel 2B L1C image of the simultaneous plumes of the three volcanoes.
Simon Carn illustrates the ash - gas split in a volcanic cloud issued on March 15 by the Bezimianny, with images of Sentinel 5P / Tropomi from March 16 running at 1:20 am.
Sources: A.Luongo and S.Carn
Shiveluch, Bezymianny and Karymsky, in the same picture (detected by Sentinel2, 2019-03-16 / Anamaria Luongo / Twitter).