Volcanoes

Alaska volcano lava dome forms, alert level raised

The warning level for a remote Alaska volcano has been raised after a new lava dome began forming, indicating the mountain could explode and send up an ash cloud that could threaten aircraft.

Alaska Volcano Observatory Cleveland page

Alaska volcano sends ash plume up to 15,000 feet

A volcano in Alaska's Aleutian Islands sent up an ash cloud Thursday that prompted scientists to increase the alert level for commercial aircraft traffic.

Cleveland Volcano alert level lowered

Scientists have lowered the alert level for Cleveland Volcano in the Aleutian Islands.

Lightning detection could confirm volcano eruptions

Lightning flashes through a cloud of ash pouring out of a remote Alaska volcano. A radio signal from the electrical discharge travels thousands of miles in milliseconds and gets picked up by dozens of antennas.

More about Alaska volcanoes

Lava builds in Aleutian volcano

Lava has reached the edge of a crater in a volcano in Alaska's remote Aleutian Islands, indicating the mountain could explode and send up an ash cloud that could threaten aircraft.

Website: More on Cleveland volcano

Cleveland Volcano lava dome may be growing

The Alaska Volcano Observatory said Sunday satellite data is indicating a "thermal anomaly" at Cleveland Volcano in the Aleutian Islands, which means a lava dome at the mountain may be growing.

Alaska Volcano Observatory Cleveland page

Remote Alaska volcano again building a lava dome

The lava dome at a remote Alaska volcano has resumed growing, prompting officials to raise its alert level.

AVO Cleveland Volcano page

Alert level lowered on Alaska volcano

The Alaska Volcano Observatory has lowered the alert level for a remote Aleutian Islands volcano from "watch" to "advisory."

Lava dome slowly grows in erupting Aleutian volcano

The lava dome on the erupting Mount Cleveland volcano in Alaska's Aleutian Islands chain is growing slowly but has not shown any explosive behavior that would generate ash plumes.

Aleutians volcano emits lava but no big ash plumes so far

Alaska Volcano Observatory updates on Mount Cleveland

Aleutians volcano emits lava but no big ash plumes so far

A volcano on a remote Aleutian island has begun erupting but is not yet generating large ash plumes that would pose danger to aircraft, officials said Tuesday.

Alaska Volcano Observatory updates on Mount Cleveland

Volcano watchers raise alert status for Mount Cleveland (8/3/11)

Signs of lava at Mount Cleveland prompted volcanologists to raise their alert level Tuesday afternoon for the Aleutian Islands volcano.

Alaska Volcano Observatory updates on Mount Cleveland

Russia's Kamchatka volcanoes spew giant ash clouds

Two volcanoes erupted Thursday on Russia's far eastern Kamchatka Peninsula, tossing massive ash plumes miles into the air, forcing flights to divert and blanketing one town with thick, heavy ash.

Inlet council hears report on volcano-threatened oil tanks

A new report on the potential for a disastrous oil spill during the Mount Redoubt eruption last year ignited a brief but loud argument Friday among directors of the Cook Inlet Regional Citizens Advisory Council over whether they are properly exercising their oversight role.

Alert level raised for Cleveland volcano in Aleutians

Scientists are raising the alert level for Cleveland Volcano in Alaska's Aleutian chain after satellite data has indicated thermal anomalies. The Alaska Volcano Observatory today raised the level to advisory status.

NED ROZELL

Underwater desert surrounds Aleutian volcano

Stephen Jewett has dived in ocean waters from one end of Alaska to the other, but he has never seen an underwater landscape as barren as one he saw last summer.

Murkowski pushes for better volcano watch

U.S. Sen. Lisa Murkowski says volcano eruptions in Iceland demonstrate that Congress needs to pass her bill to set up a volcano early warning and monitoring system.

Iceland volcano recalls near tragedy in Alaska

With the ash cloud from the Iceland volcano shutting down air traffic across much of Europe, a 1989 near-disaster in Alaska has been cited repeatedly in recent days as an example of what can happen when volcanic ash is sucked into jet engines. Here's the Daily News' story about the near-crash of a KLM jumbo jet from the following day.

Icelandic ash plume extends flight restrictions over Europe

Photos: Iceland volcano erupts

Redoubt gets a green code

Redoubt volcano is back to code green. A swarm of small, shallow earthquakes that began April 5 has ended, and the shaking there now is at normal background levels, the Alaska Volcano Observatory reported Monday. The observatory lowered the aviation code from yellow.

Redoubt seismic activity drops after day of quakes

The rate of shallow, small earthquakes at Mount Redoubt has decreased markedly since Monday, the Alaska Volcano Observatory said Tuesday.

Redoubt volcano rumbles anew; scientists raise alert level

A swarm of small earthquakes began Monday at Mount Redoubt in what scientists said was a warning that the volcano could be waking from its slumber.

Alaska Volcano Observatory Redoubt alert page:

Scientists lower Redoubt volcano alert level to 'normal'

The Alaska Volcano Observatory today reduced Mount Redoubt's alert level to "normal" after days of low activity at the Cook Inlet volcano 106 miles southwest of Anchorage.

Photo galleries: Alaska volcanoes

Flyover shows Redoubt appears unchanged

Despite a number of earthquakes at Mount Redoubt earlier this week, the volcano's exterior appears to be unchanged, according to scientists who flew to the volcano for a close-up view on Thursday.

Photo galleries: Alaska volcanoes

Web site: Alaska Volcano Observatory Redoubt page

Redoubt rumblings ease; alert remains at yellow

Although it's too soon to shrug off Mount Redoubt's latest mood swing, the volcano has simmered down considerably since Wednesday and the alert level remains upgraded a notch from green to yellow.

Mount Redoubt continues rumbling

The Mount Redoubt volcano across Cook Inlet continued to rumble Tuesday, with the alert code remaining yellow.

Scientists aren't overly worried about volcano

Mount Redoubt, the volcano across Cook Inlet that erupted in the spring, is rumbling again with shallow earthquakes and is being closely monitored by scientists.

Cleveland Volcano's threat level reduced

Geologists have returned an Alaska volcano to unmonitored status because it has remained quiet following a brief eruption earlier this month.

Cleveland Volcano in Aleutian Islands spews ash plume

Geologists are on alert after Cleveland Volcano in Alaska's Aleutians Islands spewed an ash plume up to 20,000 feet Friday.