Eruption at Shishaldin intensifies, Aviation Color Code raised to Red, Alaska

Eruption at Shishaldin intensifies, Aviation Color Code raised to Red, Alaska

Ash eruption at Shishaldin continues and has intensified as shown in satellite and lightning data, the Alaska Volcano Observatory (AVO) reported at 21:33 UTC on January 7, 2020. Satellite data suggest the ash cloud is as high as 8.2 km (27 000 feet) above sea level…

Increased seismicity, alerts raised for Pavlof volcano, Alaska

Increased seismicity, alerts raised for Pavlof volcano, Alaska

Seismic activity at Pavlof volcano, Alaska has increased over the past several days, forcing the Alaska Volcano Observatory to raise the Alert Level to Advisory and the Aviation Color Code to Yellow at 20:43 UTC on December 28, 2019. Pavlof is a snow- and…

Short-lived explosion at Shishaldin, heightened level of unrest, Alaska

Short-lived explosion at Shishaldin, heightened level of unrest, Alaska

A short-lived explosion occurred at Shishaldin volcano, Alaska, U.S. at 16:10 UTC (07:10 LT) on December 12, 2019. The eruption lasted about 3 minutes and produced an ash cloud up to 6 – 7.6 km (20 000 – 25 000 feet) above sea level, moving W-NW at 83 km/h (52 mph)….

Eruption detected at Semisopochnoi volcano, Alaska

Eruption detected at Semisopochnoi volcano, Alaska

An eruption signature was detected at Semisopochnoi as strong tremor on local seismic and in regional infrasound networks on Adak Island, Alaska Volcano Observatory reported at 10:25 UTC on December 7, 2019. The event started at 09:26 UTC (00:26 AKST) on December 7…