A seismic swarm began on October 19, 2019, in Öxarfjörður, Tjörnes Fracture Zone, North Iceland. The swarm is located around 28 km (17 miles) WNW of Kópasker and Icelandic Met Office's (IMO) seismic network has detected roughly 500…
Small explosion signals from Pavlof volcano have been detected on the infrasound network located at Sand Point and on the local seismic network on October 19, 2019. It is unknown if the explosions produced any volcanic ash, but their small size suggests any hazard…
After further investigation, the plume seen in satellite and webcam looks more like water vapor and gases, the Washington VAAC reported at 16:14 UTC on October 18, 2019, shortly after receiving information about possible volcanic ash plume rising above Momotombo…
The Alaska Volcano Observatory (AVO) raised the Aviation Color Code for Shishaldin volcano to ORANGE and the Alert Level to WATCH on October 17, 2019. Satellite observations indicated that a lava effusion event began on October 13 and is likely continuing. The…
Nicaraguan Masaya volcano expelled small amounts of ash toward the municipality of Ticuantepe on October 15, 2019. Early morning winds blew away most of the accumulated ashes. Winds continue to blow from southeast to northwest, so an investigation and monitoring of…
The Aviation Color Code for Lateiki volcano, previously known as Matis Shoal, was raised to Orange at 21:20 UTC on October 14, 2019, after several observations confirmed eruption in progress. Real Tonga pilots flying between Tongatapu and Vava'u observed the…
New activity/unrest was reported for 1 volcano from October 9 to 15, 2019. During the same period, ongoing activity was reported for 13 volcanoes. New activity/unrest: Lateiki, Tonga Islands Ongoing activity: Aira, Kyushu (Japan) | Ambrym, Vanuatu | Asosan, Kyushu…
An apparent extensive white gas emission was observed over Mount Michael, Saunders Island on October 10, 2019. The gas is being blown in an east-southeasterly direction. According to the South Sandwich Islands Volcano Monitoring Blog, the column is most likely just…
Authorities have issued an aviation warning following the eruption of Indonesia's Mount Merapi on October 14, 2019. The volcano, situated on the border of Central Java and Yogyakarta, erupted at 09:31 UTC (16:31 LT) and expelled a column of ash up to 5.9 km (19…
A white plume was observed rising up to 5 km (17 000 feet) above sea level over underwater Metis Shoal volcano, Tonga at 22:06 UTC on October 14, 2019. The last eruption of this volcano took place in 1995 (VEI 2). The Aviation Color Code was raised to Orange – the…
