The obtained contrasts of V p are more persistent and higher (up to 20 per cent) than the contrasts of V s (up to 15 per cent), although the differences may stem (at least partially) from the higher resolution of V p images. In the central section of the SJFZ, from the San Jacinto valley to the trifurcation area, the northeast side of the fault has generally higher seismic velocities than the southwest block. The velocity reductions in fault zone regions are generally highest in geometrically complex areas (up to 30–50 per cent in the top few kilometres), are higher for V s than for V p, and follow a flower-type pattern with depth. Our final velocity results show zones of low-velocity and anomalous V p/ V s ratios associated with various fault strands and sedimentary basins, along with clear velocity contrasts across the SJFZ and the southern SAF. Though ray coverage is limited at shallow depths, we obtain detailed images of seismic velocities from 3 to 20 km throughout much of the study area. After 30 iterations we improve the average traveltime misfit by a factor of 16. Because differential traveltimes used in the double-difference inversions are most sensitive to near-source structures, we obtain high resolution around the earthquake sources. The examined volume stretches from Cajon Pass to the northernmost Imperial Fault Zone and includes portions of the southern San Andreas Fault (SAF), the Elsinore Fault and the Brawley Seismic Zone in the Salton Trough. Starting with a layered 1-D model, and continuing in later iterations with various updated initial models, we invert the data for V p and V s in a 270 km long, 105 km wide and 35 km deep volume around the SJFZ using a spatially variable grid with higher density around the SJFZ. Absolute arrival times of 247 472 P and 105 448 S wave phase picks for 5493 earthquakes recorded at 139 stations in southern California are used. Was this recommendation.We present tomographic images of crustal structures in the southern California plate-boundary area, with a focus on the San Jacinto fault zone (SJFZ), based on double-difference inversions of earthquake arrival times. With theme-based courses designed for maximum mayhem, TYCO RC: Assault With a Battery delivers all the excitement without having to tell Mom you destroyed another car. Test your skills in Single-Player mode or challenge your friends in Two-Player. The elaborate detail in the construction of the vehicles is also found in such features as each individual racer's speed, acceleration rate, turning ratio, and all-out power. Race as Tantrum, replete with a front-spinning axle that damages all in it's path Nitro-Dozer, with the ability to transform into a powerful bulldozer or even Speed Wrench, a monster truck that becomes an on-road terror twice it's width. Each racer is completely unique and brandishes it's own signature maneuver breaking out with awesome offensive or defensive moves, or even morphing into a menacing super car. Choose one of eight RC cars modeled after real life Tyco-brand toy racers such as The Recoil, Fast Traxx and Hot Rocker. Taking RC racing to the next level, TYCO RC: Assault With a Battery is every schoolyard remote-controlled racer's dream come true.
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