Anonymous ID: b34227 Dec. 9, 2018, 3:15 p.m. No.4231568   🗄️.is 🔗kun   >>1576

>>4231536

Every once in a while there appears to be a subterranean wave across a vast area moving in one direction, that propagates much farther than a normal earthquake pattern should. It is like a wave of small earthquakes across the USA It appears USGS map ignores these earthquakes for some reason you have to find them on the plots.

https://earthquake.usgs.gov/monitoring/operations/heliplot.php

Anonymous ID: b34227 Dec. 9, 2018, 3:58 p.m. No.4232012   🗄️.is 🔗kun

>>4231950

Newport Washington

Lookout Washington

Wrangell Island (South-East Alaska)

Those are the largest amplitudes, But they all happened at about the same time.