Reventador Volcano Volcanic Ash Advisory: ONGOING VA EMS LKLY to 16000 ft (4900 m)
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. …