Articles tagged "us volcanoes"

korovin volcano october 25 2020 f

Low-level seismicity continues at Korovin volcano, Alaska

Low-level seismicity continues at Korovin Volcano with no other signs of volcanic activity detected in infrasound sensors or partly cloudy satellite views, the Alaska Volcano Observatory (AVO) reported at 19:42 UTC on November 1, 2020. The last eruption at this...

November 02, 2020

korovin volcano july 27 2019

Korovin volcano alert level raised, Alaska

Increased seismicity and recent satellite detections of significant sulfur dioxide emissions forced the Alaska Volcano Observatory (AVO) to increase alert levels for Korovin volcano on October 28, 2020. The Aviation Color Code was raised to Yellow and Alert Level to...

October 28, 2020

pavlof volcano alaska

Increased seismicity at Pavlof volcano, Alaska

Seismic activity at Pavlof volcano has increased on September 21, 2020, prompting the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to Yellow and Alert Level to Advisory. While this does not necessarily mean that an eruption is likely or...

September 22, 2020

makushin volcano june 7 2018

Increased earthquake activity at Makushin volcano, Alaska

The Alaska Volcano Observatory (AVO) is recording increased earthquake activity at Makushin volcano over the past 2 weeks. In response, the observatory raised the Aviation Color Code to Yellow on June 15 and plans to continue close monitoring of seismic activity,...

July 01, 2020

veniaminof september 21 2019 f

Alerts raised after increased seismicity under Veniaminof volcano, Alaska

Over the past several days there have been periods of seismic tremor and occasional earthquakes at Veniaminof volcano, forcing the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. The volcano has a...

June 19, 2020

steamboat geyser ft img june 2 2020

Geysers may be signaling magma intrusion under Yellowstone caldera

Steamboat Geyser in Wyoming is the world's tallest active geyser, which sometimes blasts water over 90 m (300 feet) into the air. At times, the geyser stays quiet for years then abruptly bursts back to life-- a behavior that has been puzzling scientists. A new...

June 04, 2020

mount cleveland may 15 2020 f

Explosion at Cleveland volcano, Aviation Color Code raised to Orange, Alaska

A small explosion was detected at Cleveland volcano by regional infrasound sensors at about 06:32 UTC on June 2, 2020 (22:32 AKST, June 1). No other significant activity was detected and local monitoring stations are offline. A small ash plume was observed at 6.7...

June 02, 2020

shishaldin lava flow january 18 2020 f

Eruptive activity resumes at Shishaldin volcano, lava flows on the NE flank, Alaska

Eruptive activity at Shishaldin volcano resumed on January 18, 2020, with lava flows visible on the NE flank. The Aviation Color Code remains Orange and Alert Level Watch since January 7. A weak plume, possibly containing a small quantity of ash, is visible in...

January 19, 2020

shishaldin alaska january 7 2020 f

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...

January 07, 2020

shishaldin volcano january 2 2019 f

Eruption at Shishaldin volcano, ash cloud to 7.3 km (24 000 feet) a.s.l., Alaska

A new eruption is taking place at Shishaldin volcano, Alaska on January 3, 2020, with ash cloud rising to 6 - 7.3 km (20 000 - 24 000 feet) above sea level at 21:00 UTC, drifting E-SE. According to Alaska Volcano Observatory, the level of seismicity has increased to...

January 03, 2020

shishaldin november 1 2019 2

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)....

December 12, 2019

shishaldin november 11 2019 alaska by anamaria luongo f

Significant increase of activity at Shishaldin volcano, fire-fountaining observed, Alaska

Activity at Shishaldin has increased significantly over the past day with fire-fountaining observed in web camera views throughout the evening and night, the Alaska Volcano Observatory (AVO) reported at 22:20 UTC on November 11, 2019. Strongly elevated surface...

November 12, 2019

shishaldin november 1 2019 f

Eruption at Shishaldin continues, lava flowing beyond the summit crater, Alaska

Low-level eruptive activity continues at Shishaldin Volcano. Two stalled lava flows extend beyond the summit crater up to 1.8 km (1.1 miles) down the northwest flank, and satellite data show trace ash deposits on the north flank and a lahar extending at least 4 km...

November 03, 2019

salton butte satellite image california

Salton Buttes lava domes: Mud volcano threatens railroad track and state highway, California

One of the mud geysers near the town of Niland, California's Imperial County, is growing rapidly, threatening nearby railroad track and state highway which may soon have to be closed. This area consists of a group of volcanoes in the Niland Field, known as...

November 02, 2018