Medium
on Oct 21, 2004
from USGS

Oct 21, Rarotonga, Cook Islands	Oct 21, Pohakaloa, Hawaii
Oct 21, Charters Towers, Australia	Oct 21, Port Moresby, New Guinea

Note: Whiplash Sweeps bump first the Dark Twin toward Earth, then the Earth toward Planet X, and within a couple days Planet X hops over the Sweeping Arm thus pushing Earth again, and finally Earth collides again with her Dark Twin behind her.