Activist Post: The Cascadia Fault Line: Locked, Loaded And Ready To Fire
Excerpt: A particular feature of the Cascadia Fault is that it doesn’t produce smallquakes, it remains still and silent until the pressure gets too much and one of the plates slips...giving rise to a mega-thrust earthquake of massive force. These quakes can be compared to the Indonesian quake of 2004 and the Japanese quake of 2011.
[...]The Cascadia, courtesy of its length will give rise to a long quake if the whole fault ‘unzips’ at the same time, as it’s believed to have done in 1700. The first P waves will travel the length of the fracture in a minute or two; the S waves that follow, the ones that cause the real damage are slower and will cause shaking and movement for about five minutes though their speed can vary depending on the rock they are traveling through.
more:
http://www.activistpost.com/2013/06/the-cascadia-fault-line-locked-loaded.html
Excerpt: A particular feature of the Cascadia Fault is that it doesn’t produce smallquakes, it remains still and silent until the pressure gets too much and one of the plates slips...giving rise to a mega-thrust earthquake of massive force. These quakes can be compared to the Indonesian quake of 2004 and the Japanese quake of 2011.
[...]The Cascadia, courtesy of its length will give rise to a long quake if the whole fault ‘unzips’ at the same time, as it’s believed to have done in 1700. The first P waves will travel the length of the fracture in a minute or two; the S waves that follow, the ones that cause the real damage are slower and will cause shaking and movement for about five minutes though their speed can vary depending on the rock they are traveling through.
more:
http://www.activistpost.com/2013/06/the-cascadia-fault-line-locked-loaded.html