阅读理解。
What happened on Friday and why was it so deadly?

Time:2∶46 pm local time, March 11, 2011
Place:Near Japan's northeastern Honshu Island
Depth:about 10 km
Magnitude(巨大):9.0 in the Richter scale(It has been the largest earthquake in Japan over 140 years.)
Disaster:The strong earthquake hit Japan and resulted(导致)in 10-metre tsunami(海啸)and serious nuclear leakage(核泄露)accident, causing heavy casualties and property losses.By March 25, Japan's quake and tsunami have left 10102 people dead and 17053 missing.