Scientists find that in an unfelt, weeks-long seismic phenomenon called episodic tremor and slip, the tremor can suddenly reverse direction and travel back through areas of the fault that it had ruptured in preceding days.
Scientists find that in an unfelt, weeks-long seismic phenomenon called episodic tremor and slip, the tremor can suddenly reverse direction and travel back through areas of the fault that it had ruptured in preceding days.