Mild eruptive activity which started at the New Southeast Crater (NSEC) on July 14 gradually intensified on July 18, INGV reports. Frequent ash emissions, producing only minor anomalies in images recorded by the thermal surveillance cameras were reported on July 17….
Elevated seismicity that began under Semisopochnoi volcano, Alaska on July 17, 2019, increased overnight and was followed by a stronger tremor signal recorded at 07:39 UTC, July 18. In addition, an infrasound signal was produced on an infrasound array located 260 km…
New activity/unrest was reported for 5 volcanoes from July 10 – 16, 2019. During the same period, ongoing activity was reported for 18 volcanoes. New activity/unrest: Great Sitkin, Andreanof Islands (USA) | Manam, Papua New Guinea | Shishaldin, Fox Islands (USA) |…
Intense activity continues at Stromboli volcano with strong explosions in northern crater area, where at least 5 vents were active overnight July 13, and lava flows from the collapsed rims of the crater terrace. INGV is replacing equipment destroyed during July 3,…
The Alaska Volcano Observatory is raising the Aviation Color Code to YELLOW and the Alert Level to ADVISORY at Shishaldin Volcano, the observatory said 21:09 UTC on July 12, 2019. The last eruption of this volcano took place in 2015 (VEI 1). This change is based on…
New activity/unrest was reported for 4 volcanoes from July 3 to 9, 2019. During the same period, ongoing activity was reported for 14 volcanoes. New activity/unrest: Manam, Papua New Guinea | Semisopochnoi, United States | Stromboli, Aeolian Islands (Italy) |…
The seismic activity that started early July 6, 2019 at the southern margin of Coso Volcanic Field in Inyo County, California continues at a rate of about 600 M1.0 or greater earthquakes per day. The activity was triggered by a magnitude M5.4 earthquake at 04:19…
Taiwan's Wandan mud volcano erupted again on July 8, 2019, ejecting mud more than 1.5 m (4.9 feet) above the ground. The eruption continued into July 9 with flames coming out of the ground. Its last eruption was on December 24, 2019. Wandan Township…
New activity/unrest was reported for 5 volcanoes from June 26 – July 2, 2019. During the same period, ongoing activity was reported for 11 volcanoes. New activity/unrest: Manam, Papua New Guinea | Mauna Loa, Hawaiian Islands (USA) | Raikoke, Kuril Islands (Russia) |…
Due to an increase in seismicity above background levels over at least the last 8 hours AVO is raising the Aviation Color Code to YELLOW and Alert Level to ADVISORY at Semisopochnoi. No explosive activity has been detected on the Adak infrasound array and clouds…
