Advertisement

You are browsing the archive for seismic data.

22 February 2014

Mount La Perouse: Sunday’s rock avalanche in Alaska has been found

Helicopter pilot Drake Olson has found the rock avalanche that occurred in Alaska on Sunday. It is on the flank of Mount La Perouse.

Read More >>

No Comments/Trackbacks >>


20 February 2014

Breaking news: a very large landslide in Alaska on Sunday

Using seismic data, Colin Stark and colleagues have detected a new, very large landslide in Alaska on Sunday. At about 68 million tonnes, this may have been the largest natural landslide since 2010

Read More >>

1 Comment/Trackback >>


24 May 2012

Another teleseismic landslide – this time in Alaska on Monday 21st May 2012

Using seismic data, Colin Stark identified a large landslide that occurred in remote Alaska on Tuesday. Landsat imaged it a few hours later.

Read More >>

1 Comment/Trackback >>


31 March 2009

Yosemite rockfall – seismic signal

Improvements in the quality of seismic monitoring systems, in addition to increases in the numbers of instruments and better processing techniques have meant that in the last few years it has become increasingly common to detect large rockfall events from their seismic signature. A nice example of this occurred this week. On 28th March a large rockfall occurred from Ahwiyah Point near Half Dome in Yosemite. This is a pretty …

Read More >>

1 Comment/Trackback >>


29 January 2009

Was the Wenchuan (Sichuan) earthquake triggered by humans?

At recent edition of Science carries a really intriguing review piece that examines the triggers of the Wenchuan earthquake. Although earthquake triggering is really beyond the scope of this blog, the huge number of devastating landslides that the earthquake induced means that this is of interest. The article can be read online here. The article has emerged from work undertaken at two different locations. Christian Klose of Columbia University presented …

Read More >>

1 Comment/Trackback >>


7 August 2008

Mount Adams rock and snow avalanche

The online site Oregon Environmental News has today carried a rather nice article on a new, large, rock and snow avalanche on Mount Adams (Fig. 1) in the Cascade Range in Washington State. Mount Adams is a stratovolcano that has a long history of such events. Many readers will be aware for example of the 31st August 1997 event, which had a volume of about 5 million cubic metres, and …

Read More >>

1 Comment/Trackback >>