Spatial and temporal constancy of seismic strain release along an evolving segment of the Pacific–North America plate boundary

2011 ◽  
Vol 304 (3-4) ◽  
pp. 565-576 ◽  
Author(s):  
Kurt L. Frankel ◽  
James F. Dolan ◽  
Lewis A. Owen ◽  
Plamen Ganev ◽  
Robert C. Finkel
Keyword(s):  
North America ◽  
Plate Boundary ◽  
The Pacific ◽  
Seismic Strain ◽  
Strain Release ◽  
Seismic Strain Release

scholarly journals Distribution of the Pacific/North America motion in the Queen Charlotte Islands-S. Alaska plate boundary zone

2003 ◽  
Vol 30 (14) ◽  
Author(s):  
Stéphane Mazzotti ◽  
Roy D. Hyndman ◽  
Paul Flück ◽  
Alex J. Smith ◽  
Michael Schmidt
Keyword(s):  
North America ◽  
Plate Boundary ◽  
Boundary Zone ◽  
Queen Charlotte Islands ◽  
The Pacific ◽  
Plate Boundary Zone

scholarly journals Some characteristics of the seismicity of the Tyrrhenian Sea Region

2010 ◽  
Vol 27 (1-2) ◽  
Author(s):  
S. MESZAROS ◽  
P. HEDERVARI
Keyword(s):  
South America ◽  
Elastic Strain ◽  
Seismic Events ◽  
Tyrrhenian Sea ◽  
Seismic Belt ◽  
Maximum Value ◽  
Seismic Strain ◽  
Strain Release ◽  
Seismic Strain Release ◽  
Global Tectonics

In the first p a r t of the paper the seismic strain release of the T y r r h e n i a n Sea Region (including Italy), as the function of time, is examined on the basis of t h e d a t a of the e a r t h q u a k e s t h a t took place f r om 1901.01.01 to 1970.12.31, between the northern l a t i t u d e s of 34° and 44° and between the eastern longitudes of 8° and 18.5°, respectively. All registered shocks with a R i c h t e r - m a g n i t u d e of 5.5 or over it were considered, i n d e p e n d e n t l y f r om t h e focal d e p t h . Three periods were recognized in the a c t i v i t y ; t h e lengths of which are not t h e same, however. I n the second p a r t the elastic strain release in accordance with the focal d e p t h of t h e same e a r t h q u a k e s is t r e a t e d briefly. It was found t h at t h e t o t a l strain-release had a maximum value in t h e depth between 0 and 74 kms and there was a minimum between the depth of 300 and 524 kins with an interval between 375 and 449 kms within which no earthquakes occurred at all. The general p a t t e r n of the d i s t r i b u t i o n of seismicity as t h e f u n c t i o n of hypocentral d e p t h reminds to the well-known picture, one can experience in other regions where i n t e r m e d i a t e and deep shocks occur. This s t a t e m e n t is consistent w i t h t h e idea, according to which t h e seismicity of t h e Tyrrhenian Sea Region can be discussed and explained in t h e light of t h e theory of new global tectonics. F i n a l l y , in the t h i r d p a r t of the study, the authors have s t a t e d t h at in some cases multiple events occurred b e n e a t h t h e Tyrrhenian Sea Region. Such multiple seismic events were detected in the case of other areas, such as the Fiji-Tonga-Kermadec Region, the seismic belt of South America etc., — but, according to the knowledge of t h e authors, this is t h e first occasion when multiple seismic events are demonstrated in the Tyrrhenian Sea Region.

Subcontinental-scale crustal velocity changes along the Pacific–North America plate boundary

Nature ◽  
2006 ◽  
Vol 441 (7097) ◽  
pp. 1131-1134 ◽  
Author(s):  
J. L. Davis ◽  
B. P. Wernicke ◽  
S. Bisnath ◽  
N. A. Niemi ◽  
P. Elósegui
Keyword(s):  
North America ◽  
Plate Boundary ◽  
Crustal Velocity ◽  
The Pacific ◽  
Velocity Changes
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