File:Seismogram from Davao, Philippines 21 November 2019.jpg

Summary

 * Source
 * Tom @TocoiTom on Twitter, November 21, 2019
 * ''This is from Beijing looks like it's the same albeit weaker due to the distance
 * + Taipei, Taiwan and Beijing, China
 * ''The 3 graphs I posted are from Taiwan, Philippines and Beijing.  Basically asian heligraphs are like this Taiwan and the Philippines have the biggest signatures so yea looks like it went off between those two locations
 * Heliplots - Earthquake Hazards - USGS
 * ''These data update automatically every 30 minutes
 * Data from Station IC BJT (Baijiatuan, Beijing, China)
 * See also
 * How to Read a Seismogram - Part II - Seismo Blog, January 1, 2012
 * Other versions