Anthony Qamar

TL;DR: In this article, the authors interpret Global Positioning System (GPS) measurements in the northwestern United States and adjacent parts of western Canada to describe relative motions of crustal blocks, locking on faults and permanent deformation associated with convergence between the Juan de Fuca and North American plates.

TL;DR: It is inferred that the volcano was probably poised in a near-eruptive equilibrium state long before the onset of the 2004–05 eruption, and a dynamical model is formalized that reveals a strong analogy between behaviour of the magma–plug system and that of a variably damped oscillator.

TL;DR: In this paper, high-precision GPS geodesy in the Pacific Northwest provides the first synoptic view of the along-strike variation in Cascadia margin kinematics.

TL;DR: The first explosion occurred October 1, 2004, 8.5 days after the first earthquakes, and was followed by three other explosions over the next four days as mentioned in this paper, and through the end of 2005 seismicity was dominated by these drumbeats, although occasional larger earthquakes (M d 2.0-3.4) dominated seismic energy release.

TL;DR: In this paper, the authors analyzed 3 years of continuous data from 7 permanent GPS stations along the western Washington section of the Cascadia Subduction Zone and found that the direction of the observed horizontal velocities (with respect to station DRAO, nominally representing the stable North American continent) is roughly parallel to the relative plate convergence direction of Juan de Fuca and North America plates and that their magnitude decreases away from the trench.