关于新西兰最近两次大EQ的简短说明（2010年9月3日Mw=7.0，2011年2月21日Mw=6.1）。由M1分潮引起的潮汐触发大EQ的典型例子
A short note on the two most recent large EQs of New Zealand (Mw=7.0 on September 3rd, 2010 and Mw=6.1 on February 21st, 2011). A typical example of tidally triggered large EQs by the M1 tidal component
摘要：
将新西兰最近两次大赤道振荡（2010年9月3日Mw = 7.0和2011年2月21日Mw = 6.1）的发生时间与震源区岩石圈振荡达到M1（月差）分潮峰值的时间进行了比较。观测到的EQs出现时间与岩石圈振荡峰值振幅时间的M1分潮分量非常吻合，这清楚地表明这两个EQs都是由岩石圈潮汐振荡的M1分量触发的。据推测，如果安装了适当的硬件，则应在EQ发生之前观察到大的预放电电信号。
英文摘要：
The time of occurrence of the two most resent large EQs of New Zealand (Mw = 7.0 on September 3rd, 2010 and Mw = 6.1 on February 21st, 2011) is compared to the time when the lithospheric oscillation at the focal area reaches its peak amplitude in terms of the M1 (Moon declination) tidal component. The observed very good coincidence of the EQs occurrence time with the lithospheric oscillation peak amplitude time for the M1 tidal component clearly suggests that both these EQs were triggered by the M1 component of the lithospheric tidal oscillation. It is speculated that large preseismic electric signals should be observed before the EQs occurrence if the appropriate hardware were installed.
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