We developed an open source software for crustal strain analysis using the least-squares collocation method based on the spherical model of the earth. The software is able to simultaneously determine the signal and noise of the velocities at the observation points with the best possible removal of the observational errors, or at any other position with no velocity observation. Furthermore, the ...

The tearing and healing of a one-dimensional crack in a solid, in the presence of external tectonic forces, pre-stress, static friction, cohesion and dynamic friction is investigated. It is found that cohesive forces have a strong influence on the velocity of rupture; the velocity of rupture is always less than or equal to the velocity of sound. The extension of the crack ceases either when the...

CURRENT SCIENCE, VOL. 89, NO. 11, 10 DECEMBER 2005 1937 e-mail: [email protected] from Ninetyeast Ridge. In Proc. Ocean Drill. Programme Sci. Results, 1990, vol. 121, pp. 777–882. 15. Seeber, L., Armbruster, J. G. and Quittmeyer, R. C., Seismicity and continental subduction in the Himalayan Arc. Am. Geophys. Union Geodyn. Ser., 1981, 3, 215–242. 16. Seih, K. and Natawidjaja, D., Neotectonics ...

Current needs for high-reliability, reusable software; rapid, evolutionary development; and veriication of innovative software architectures have focused attention on improving techniques for analysing the safety and reliability of embedded software. The work reported here integrates two successful safety analysis techniques which have been used separately on software and hardware into the syst...

The movement of tectonic plates leads to strain build-up in the Earth, which can be released during earthquakes when one side of a seismic fault suddenly slips with respect to the other. The amount of seismic strain release (or 'strain drop') is thus a direct measurement of a basic earthquake property, that is, the ratio of seismic slip over the dimension of the ruptured fault. Here the analysi...

The ShakeOut Scenario assessed earth-science impacts, physical damage, and socioeconomic impacts of a hypothetical M7.8 southern San Andreas Fault earthquake. Among many detailed studies were special studies of 12 lifelines, 7 of which were performed by panels of employees of the utilities at risk. Panels met for four hours. Panelists were presented with the scenario’s earth science impacts and...

A method of modeling internal turn-to-earth and turn-toturn faults in distribution transformer is discussed in this paper. The models are entirely compatible with the Alternative Transients Program(ATP). The simulation of the faults is based on known leakage factors between the various coils of the transformer. These leakage factors are evaluated by using a simple method implemented in this pap...

Cluster management middleware schedules tasks on a cluster, controls access to shared resources, provides for task submission and monitoring, and coordinates the cluster’s fault tolerance mechanisms. Thus, reliable continuous operation of the management middleware is a prerequisite to the reliable operation of the cluster. Hence, the management middleware should tolerate a wide class of faults ...

We present a new procedure for the determination of rupture complexity from a joint inversion of static and seismic data. Our fault parameterization involves multiple fault segments, variable local slip, rake angle, rise time, and rupture velocity. To separate the spatial and temporal slip history, we introduce a wavelet transform that proves effective at studying the time and frequency charact...

A non-contact, wideband method of sensing dynamic fault slip in laboratory geophysical experiments employs an inexpensive magnetoresistive sensor, a small neodymium rare earth magnet, and user built application-specific wideband signal conditioning. The magnetoresistive sensor generates a voltage proportional to the changing angles of magnetic flux lines, generated by differential motion or rot...