Seismic research in the area is hindered by frequent landslides, which cover up much of the visible tectonic evidence, such as rifts in the ground or exposed ridges, scientists say.

• 科学家们表示，该地区的地震研究也因为频繁的塌方而受阻，塌方掩埋了很多地质构造证据，比如地表的裂纹或暴露的山脊。