The rupture process of the 2014 Iquique, Chile earthquake is inverted from teleseismic P wave data applying a novel formulation that takes into account the uncertainty of Green's function, which has been a major error source in waveform inversion. The estimated seismic moment is 1.5 × 10 21 Nm (Mw = 8.1), associated with a 140 km long and 140 km wide fault rupture along the plate interface. The source process is characterized by unilateral rupture propagation. During the first 20 s, the dynamic rupture front propagated from the hypocenter to the large asperity located about 50 km southward, crossing a remarkably active foreshock area at high velocity (of about 3.0 km/s), but small and irregular seismic moment release rate. Our result may suggest that the 20 s long initial phase was influenced by the stress drop due to the foreshock activity near the main shock hypocenter. Moreover, the 2 week long swarm-like foreshock activity migrating roughly at 5 km/day toward the main shock hypocenter, and possibly associated slow slip, contributed to the stress accumulation prior to the Mw 8.1 megaquake. The main shock initial rupture phase might have triggered the rupture of the large asperity, which had large fracture energy.

The drainage and waterproof performance experiments of the plaster on insulation system were conducted.1. Drainage performance was tested to clarify the behavior of rainwater invading behind the EPS put on the wall. As a results, the system using EPS with groove has suffisient drainage performance compare to non grooved one.2. We made a testing method to evaluate the water proof performance of the plaster on insulation system. Test result shows that the system with groove shows suffisient water proof performance. While the system without groove shows insuffisient performance by full-scale wall test based on JIS A 1414-3.

Thermal insulation of windows is particularly important for reducing load, one of the energy-saving methods. The purpose of this study is to quantitatively evaluate the effectiveness of the components of thermally insulated PVC windows in providing thermal insulation and to propose a process for determining optimal components. In this study, we show the effects of each elemental technology on insulation performance, (elemental technologies are expected to contribute to the thermal insulation of the frame and glazing parts), and verify the optimal conditions. We then show the insulation performance of the window under the combined optimum conditions. Also, we report the results of the insulation performance test conducted on samples.

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