SLIP movements along active faults may either occur violently, and generate earthquakes, or gradually in a little understood process called fault creep1–5. An interesting feature of fault creep is that it is frequently episodic rather than continuous and the episodes of movement propagate along the fault1. The mathematics, but not the physics, of the process are identical to those of crystal dislocations6.
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KING, G., BILHAM, R., CAMPBELL, J. et al. Detection of elastic strainfields caused by fault creep events in Iran. Nature 253, 420–423 (1975). https://doi.org/10.1038/253420a0
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