One-Two Sweep
on Apr 11-12, 2004
from USGS

Apr 11, BJT, Baijiatuan, Beijing, ChinaApr 14, KMBO, Kilima Mbogo, Kenya
Apr 11, HRV, Harvard, Massachusetts, USAApr 14, MAJO, Matsushiro, Japan
Apr 11, PMG, Port Moresby, New GuineaApr 14, COR, Corvallis, Oregon, USA

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.