Articles tagged "us volcanoes"

kilauea october 2 2021 f

Lava continues to erupt from multiple vents at Kilauea, sulfur dioxide emissions increase, Hawaii

Lava continues to erupt from multiple vents along the floor and western wall of Kilauea's Halemaʻumaʻu crater since September 29, 2021. As of October 3, 2021, all lava activity is confined within Halemaʻumaʻu in Hawai’i Volcanoes National Park....

October 04, 2021

kilauea 0130z september 30 f

New eruption at Kilauea volcano, Aviation Color Code raised to Red, Hawaii

A new eruption began at Kilauea volcano's Halema‘uma‘u crater at approximately 01:20 UTC on September 30, 2021 (15:20 HST, September 29). As a result, the USGS Hawaiian Volcano Observatory (HVO) raised the Volcano Alert Level for ground-based hazards...

September 30, 2021

mount cerberus semisopochnoi alaska september 7 2021 f

Eruptive activity continues at Mount Cerberus on Semisopochnoi Island, Alaska

Eruptive activity continues at the north crater of Mount Cerberus on Semisopochnoi Island, the Alaska Volcano Observatory (AVO) reported at 20:01 UTC on September 8, 2021. Seismicity at the volcano remains elevated and variable, with periods of continuous tremor,...

September 09, 2021

korovin volcano 3d atka alaska july 22 2021 f

Increased seismicity at Atka volcanic complex, alerts raised, Alaska

Due to increased seismicity detected southwest of Korovin volcano, Atka volcanic complex, the Alaska Volcano Observatory (AVO) has raised the Aviation Color Code for the volcano to Yellow and Alert Level to Advisory on August 11, 2021. Numerous small earthquakes...

August 12, 2021

pavlof volcano 1632z august 5 2021 f

Ash-emissions at Pavlof volcano, Aviation Color Code raised to Orange, Alaska

Low-level ash emissions were observed at Pavlof volcano, Alaska on August 5, 2021, prompting the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to Orange and Alert Level to Watch. In addition, seismic tremor and small explosions have been detected...

August 06, 2021

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Yellowstone registers most energetic swarm of earthquakes since 2017

The month of July saw the most energetic swarm of earthquakes in the region since the Maple Creek earthquake swarm of June-September 2017, the Yellowstone Volcano Observatory (YVO) reported in their monthly update released August 2, 2021. While above average, this...

August 03, 2021

mt hood earthquake swarm june 5 and 6 2021 f2

Earthquake swarm under Mount Hood volcano, Oregon

The Cascades Volcano Observatory (CVO) has detected an earthquake swarm in the Mount Hood area, Oregon on June 5, 2021. The swarm continued into June 6 when the activity started to quiet down. The last known eruption of this volcano took place in 1865 and 1866 (VEI...

June 06, 2021

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