1887

Abstract

Summary

Unipolar magnetic pulses (UMPs) are recorded prior to strong earthquakes at different points: California, Italy, Peru. Their basic characteristics are considered and analyzed. Supposed mechanism of UMPs are underground electric currents of impulse type. Laboratory experiments have evidenced the phenomenon that igneous rocks under stress/strain change conditions turn into semiconductor plasma. Stress induced (current-carrying) impulse modes of rock plasma (petroplasma) are suggested. The emerging diffusion processes inside and outside the current-carrying channel are discussed to explain the pre-seismic UMPs ⌝ their appearance, with one polarity, pulse width, etc. A possible cause of pre-seismic UMPs is proposed.

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/content/papers/10.3997/2214-4609.201902656
2019-09-18
2024-03-28
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References

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