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【题目】下表显示XY两地同年出现地震的有关资料。X地位于美国西部,Y地位于印度中部。读表回答问题。

地点

人口密度(/km2)

震中距(km)

地震发生时间(地方时)

震级()

死亡人数()

X

200

5.8

1025

7.4

8

Y

500

2.5

400

7.1

1 820

1

A. X地的震源深度大于Y

B. X地地震产生的能量大于Y

C. XY两地都不位于震中

D. XY两地的地震均属于破坏性地震

2

A. Y地人口密度较大

B. Y地距震中较近

C. Y地的地震发生在夜间

D. Y地位于板块边界地带

【答案】

1A

2D

【解析】试题分析:

1】分析上面表格可知,两地地震未明确给出震源深度,所以无法确定XY两地震源深度。故A项说法不可靠。X地地震震级7.4,高于Y地的7.1X地产生的能量大于Y地,B项正确。两地震中距均大于0,表明XY两地都不位于震中,C项正确。两地地震震级均大于5级,故XY两地的地震均属于破坏性地震。

2】分析上表可知,Y地(印度中部)人口密度较大、距离震中较近、地震发生在大多数居民尚熟睡的夜间,故死亡人数较多。Y地(印度中部)位于印度洋板块中北部,距板块边界较远,故D项错误。综合以上分析可知,D为符合题意的选项。

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