These marvels have been found wonderfully near San Andrea, Calif., And are connected and balanced, but they are not, for nearly 10,000 years, on the same nature, resistant to 50 to 100 devastating earthquakes.
Liza Grande Ludig of the University of California, Pervin, surveyed the field next to 36 of these carefully packed granite pieces and completed seismic measurements. These stones are 7 kilometers from the famous San Andrea and 10 kilometers from another less famous volcano, San Jacinto.
The researcher also completed with her team a model for one of these rock pieces, in order to know the kinetic energy that can fall.
After ten years of research , Lisa published an explanation in Seismology magazine summarizing that the movement of seismic waves around these pieces is less powerful than expected, due to the interaction of the force of the two ringers present in the region. Seismic seismic barriers.
The study is expected to open the door to debate on current seismic models, as the faults affect each other.
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