A、Its level was not big enough. B、Its center was deep below the surface. C、It struck rural mountainous areas. D、The construction

We’re starting today with a report on a major earthquake that struck Southern Asia yesterday. Its center, the point directly above the quake, was in northeastern Afghanistan. The force was felt in neighboring Pakistan and Tajikistan, as well as two countries over in India, Its level was 7.5, capable of huge damage.
    But geologists say [3]because its center was so deep, more than 130 miles below the surface, its effects were limited. Still, Afghan officials say more than 4,000 houses were severely damaged or destroyed and [4]more than 200 people, mostly in Pakistan, were confirmed dead when we produced this show.
    The quake hit a rural mountainous area. Some affected villages are hard for rescuers to reach. They also don’t have good basic constructions like solid bridges or reliable communications systems. So, that’s another challenge.
3. Why was the effect of the earthquake limited?
4. What was the consequence of the earthquake?