【摘要】 １９９８年第三季度，全球地震活动仍为中等水平。新几内亚北部近海和厄瓜多尔近海各发生一次７级以上地震。亚速尔群岛发生一次６级以上地震。全球中等以上地震活动无异常现象。更多还原

【Abstract】 The global seismicity in the third quarter of the year 1998 was still of medium level An earthquake of magnitude 7 or over respectively occurred off the northern coast of New Guinea and off the coast of Ecuador An earthquake of magnitude 6 or over took place in the Azores Islands Anomalous phenomona did not appear in the global seismicity of medium to strong earthquakes更多还原