Pre-slip explained

In seismology, pre-slip is a phenomenon in which part of a hard bonded region underground detaches and begins to slip by slow. It often occurs before a major earthquake occurs at the plate boundary.^{[1] [2]}

See also

• Slow earthquake

Notes and References

1. Book: Harsh. K Gupta. Encyclopedia of solid earth geophysics. Earthquake precursors and prediction. Uyead. Seiya. Nahaio. Toshiyasu. Kamogawa. Masashi. Springer Science & Business Media. 2011.
2. http://www.jma.go.jp/jma/en/Activities/jishintsunami/jishintsunami_low7.pdf Information on the Tokai Earthquake