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Table 6 Estimated aftershock durations

From: Spatio-temporal clustering of successive earthquakes as inferred from analyses of global CMT and NIED F-net catalogs

Mainshock \({M}_{\mathrm{min}}\) 2-year Background (per day) k value p value c value \({t}_{d}\) (year)
1992 \({M}_{w}\) 7.3 Landers Eq 3.5 0.112 80.5 1.12 1.2 ~ 0.96
4.0 0.032 15 0.98 0.9 ~ 1.5
5.0 0.0014 12 1.04 5 ~ 16.4
1993 \({M}_{w}\) 7.8 Hokkaido–Nansei–Oki Eq 3.5 0.018 274.4 1.27 0.01 ~ 5.5
4.0 0.004 80.7 1.32 0.01 ~ 4.9
5.0 0.001 10 1.283 0.226 ~ 3.6
1994 \({M}_{w}\) 7.7 Sanriku–Oki Eq 3.5 0.293 68.5 0.83 0.01 ~ 1.9
4.0 0.138 38.7 0.89 0.01 ~ 1.5
5.0 0.022 10 0.99 0.01 ~ 1.2
1999 \({M}_{w}\) 7.4 Izmit Eq 3.5 0.007 107.3 1.26 5 ~ 6
4.5 0.007 17.9 1.13 0.01 ~ 2.7
5.0 0.007 12 1.18 5 ~ 1.5
2010 \({M}_{w}\) 7.2 Darfield Eq 3.5 0.3 95.7 1.01 0.55 ~ 3.5
4.0 0.3 17 0.95 0.01 ~ 0.2
5.0 0.3 10 0.82 5 ~ 0.12