A small explosion occurred on August 16 in Nishinoshima, visible in a NASA image.
The VAAC Tokyo reports the continuation of the ash emissions, up to an altitude of flight 130.
Sources: Nasa Eosdis worldview, VAAC Tokyo
Nishinoshima - Volcanic ash advisory for 16 and 17.08.2020 - Doc. VAAC Tokyp - one click to enlarge thumbnails
Sinabung, on Sumatra remains in activity level 2 / siaga, with a red aviation code.
VAAC Darwin reported ash emissions at flight altitude 150, in a southwesterly direction.
Magma Indonesia provides information for the seismicity of August 16:
- 3 blast earthquakes, with an amplitude of 2 to 5 mm and the earthquake lasted 15 to 65 seconds.
- 4 low frequency earthquakes with an amplitude of 2 to 10 mm and the earthquake lasted 10 to 20 seconds.
- 1 deep volcanic earthquake with an amplitude of 11 mm, S-P 2.3 seconds and the duration of the earthquake was 9 seconds.
- 1 local tectonic earthquake with an amplitude of 9 mm, S-P 4.6 seconds and a long earthquake of 24 seconds.
- 2 distant tectonic earthquakes with an amplitude of 6-7 mm, S-P 13-41 seconds and a long earthquake of 105-110 seconds.
- 4 episodes of continuous tremor with an amplitude of 0.5-16 mm, dominating 4 mm.
Sources: PVMBG, Magma Indonesia, VAAC Darwin
We wish a happy 75th anniversary of Independence to the Indonesians.
The sequence of volcanic earthquakes that began on Saturday August 15, 2020 at 2:47 a.m. local time (Saturday August 15, 2020 at 6:47 a.m. UTC *) in the volcanic aera of La Soufrière of Guadeloupe continues.
Since the start of this sequence, the OVSG-IPGP networks have recorded 372 very low magnitude earthquakes (M <1). No earthquakes were reported felt. The events are located at a depth of <2.5 km below the top of the dome of La Soufrière.
The alert level remains: yellow, vigilance.