I’m not a seismologist, but this jumped out.
On 12/5/18 at 1600 hours, 1700 hours and 2200 hours for appx 10 minutes across the entire United States and in Russia was nearly identical seismic activity.
Also check out Idaho Springs, Colorado
and Disney Wilderness Preserve, Florida.
It looks like DWP is off the charts shaking.
Yesterday, the whole globe looked like DWP.
Earthquake.usgs.gov/monitoring/operations/heliplot.php