刚刚发生的青海地震让大家心里都对地震又恨又怕。虽然天灾我们无法控制，但我们可以做好应对措施，这样就可以尽可能的减少伤亡。
2010年高考英语作文热点范文集锦
an earthquake is a tremor of the earth's surface usually triggered by the release of underground stress along fault lines. this release causes movement in masses of rock and resulting shock waves. in spite of extensive research and sophisticated equipment, it is impossible to predict an earthquake, although experts can estimate the likelihood of an earthquake occurring in a particular region.
in 1935, american seismologist (地震学家) charles richter developed a scale that measures the magnitude of seismic waves. called the richter scale, it rates earth tremors on a scale from 1 to 9, with 9 being the most powerful and each number representing an increase of ten times the energy over the previous number. according to this scale, any quake that is higher than 4.5 can cause damage to stone buildings; quakes rated a magnitude of 7 and above are consid