强震地表破裂宽度与震级的统计关系研究

STATISTICAL RESEARCH ON RELATION BETWEEN SURFACE FAULT WIDTH OF STRONG EARTHQUAKE AND MAGNITUDE

摘要:

研究了强震造成地表破裂的宽度范围,得出造成地表破裂的下限震级是6.6级.对应最大震级(M=8.5)的可能破裂宽度是100 km,它是一种带状破裂而不是一种线状破裂.统计得出震级-地表破裂宽度的经验关系式.

Abstract:

Surface fault width caused by strong earthquake is studied.The result shows earthquake (M_S=6.6) is minimum magnitude of producing surface fault,and earthquake (M_S=8.5) may produce fault zone with width of 100 km.It means,for the very strong earthquake,the surface fault is stringy rupture,isn't lineal rupture.An empirical formula between surface fault width of earthquake and magnitude is obtained.