Big
on Sep 20, 2004
from USGS

Sep 20, Disney Wilderness Preserve, Florida	Sep 20, Hailar, China
Sep 20, Tornquist, Argentina	Sep 20, Kipapa, Hawaii
Sep 20, Lusaka, Zambia	Sep 20, Yuzhno Sakhalinsk, Russia

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.