Complex sentence: They rarely cause much damage (sometimes a few injuries) as they are either too small or far away as quakes tend to dance around the region, particularly active are offshore regions and to a lesser extent Chiba and Ibaraki.
Split into simpler sentences: They rarely cause much damage (sometimes a few injuries) as they are either too small or far away as quakes tend to dance around the region. Particularly active are offshore regions and to a lesser extent Chiba and Ibaraki.