Mauna Loa volcano (Big Island, Hawaii): weekly volcanic activity report 10-17 Sep 2020
During the past week the Hawaiian Volcano Observatory (HVO) recorded 67 small-magnitude earthquakes on the volcano’s summit and upper-elevation flanks. Most of these earthquakes occurred at shallow depths of less than 8 km (~5 miles) below ground level. Slow summit inflation continues to be detected by the GPS, consistent with magma supply to the volcano’s shallow storage system. Gas…
Rincon de la Vieja volcano (Costa Rica): phreatic explosion yesterday
The activity of the volcano continues at low levels characterized by phreatic or hydrothermal explosions. OVSICORI-UNA detected phreatic explosion yesterday morning associated with emissions of gas and steam plume that rose 2,296 ft (700 m) above the crater and drifted NW. No lahars and no ash fall occurred. Instruments detected a deflation at the base and the top of the volcanic edifice. …
Sangay Volcano Volcanic Ash Advisory: LGT VA EMS LKLY to 20000 ft (6100 m)
Volcanic activity worldwide 17 Sep 2020: Semeru volcano, Dukono, Reventador, Sangay, Bezymianny, Nev…
Bezymianny (Central Kamchatka Depression): (17 Sep) KVERT reported that new lava dome is growing in the inner summit crater since around 26 August. During 28-31 August and on 4, 8 and 10 September a thermal anomaly was detected in satellite images. … [read more] … [show less] The Aviation Color Code remained at Yellow. Semeru (East Java, Indonesia): (16 Sep) Volcanic Ash Advisory…