Alaska

Eruptions

Category archives for Alaska

Some news for the last Friday in January: Volcanic lightning captured over Redoubt in March 2009. Tungurahua in Ecuador continues to erupt. Yesterday, the volcano spread ash over much of central Ecuador. Apparently people in Ecuador aren’t taking the hazard of ash too seriously, with many ignoring recommendations to wear masks when the ash is…

A pile of news for the new week! The glow of new lava flows from Nyamuragira in the Congo, taken from the Virunga Park Headquarters, January 2, 2010. Mayon PHIVOLCS may lower the alert status at Mayon to Level 2 after almost a week of lower seismicity and no ash explosions since December 29th. Schools…

2009 is over! If you missed the Volcanic Year in Review, check out my summary of the volcanic events that captivated many of us over the past year. However, only one event will get the coveted 2009 Pliny for Volcanic Event of the Year. A lot of you wrote in with votes and comments –…

2009: The Volcanic Year in Review

Here it is, my attempt to recap a year’s worth of volcanic events. By no means is this supposed to capture every event, but rather the highlight/lowlights and what most captivated me during 2009. I’ll be announcing the winner of the 2009 Pliny for Volcanic Event of the Year tomorrow. Waimangu Geothermal Valley in New…

Not much new to report today, so I’ll just add some notes to the two volcanoes in the news right now: Mayon and Redoubt. Mt. Redoubt in Alaska, taken on September 23, 2009. Image courtesy of AVO/USGS, taken by Game McGimsey. Mayon: The volcano continues to show signs that a major eruption is in the…

Redoubt Returns?

The most recent image on the AVO website of the dome at Redoubt, taken in November 2009. Image courtesy of AVO/USGS, by Cyrus Read. Not much information on this, but AVO just raised the alert status at Redoubt in Alaska to Yellow for the first time since late September. A series of small earthquakes were…

I did an excellent job of forgetting my notes from GSA 2009, so no wrap up on the meeting until tomorrow, but we do have some new volcano news to digest: The crater of El Reventador in Ecuador in an undated photo. Ecuadorian officials have called for evacuations around El Reventador. The Ecuadorian Geophysics Institute…

Cleveland erupts!

And not because the Indians’ season is finally (mercifully) over (zing!) Cleveland steaming away in a 2008 AVO image. Cleveland (the volcano) erupted on Friday, producing an ash column that reached 4.5-6 km / 15,000-20,000 feet. The full report from AVO: Satellite data indicate that Cleveland volcano erupted briefly this morning at ~0730 UTC (2330…

The big geology news right now is the M8 earthquake in American Samoa that generated a killer tsunami (which made it all the way to the Bay Area in California). Mammoth Mountain in California’s Long Valley region. In more benign, volcano-related news: The aviation alert level at Redoubt in the Alaska has been returned to…

Some brief tidbits for your Wednesday: The view of Mt. Saint Helens from the Johnston Ridge Observatory. There is a decent article about research being done at a dissected caldera system in the Italian Alps’ Sesia Valley. The caldera in question is the Permian in age (248-298 million years old) so don’t expect to find…