The present paper discusses the theoretical problems concerning the possibility of predicting earthquakes in the light of the abnormal variation of directions of earth current.

Some geologists feel that the method they used, probabilistic seismic hazard analysis, may underestimate the possibility of earthquake hazards.

Writing in the journal Nature Geoscience in January, the team warned that the danger of a quake greater than magnitude 8.5 remained along the segment under Padang.