TY - JOUR A1 - Mignan, A. T1 - Utsu aftershock productivity law explained from geometric operations on the permanent static stress field of mainshocks JO - Nonlin. Processes Geophys. Discuss. J1 - NPGD VL - 2017 SP - 1 EP - 20 Y1 - 2017/07/18 PB - Copernicus Publications SN - 2198-5634 UR - https://npg.copernicus.org/preprints/npg-2017-38/ L1 - https://npg.copernicus.org/preprints/npg-2017-38/npg-2017-38.pdf DO - 10.5194/npg-2017-38 ER -