Beat me to it.
We're evenโฆI didn't use anything but a cap.
You may pass.
That 7.6 mag quake in Mexico has the heliplots from around the world almost all blacked out in ink. Very intesting. Each horizontal line on a heliplot takes an hour and there are 24 lines per day.
This earthquake was causing full scale deflections on virtually the whole world's heliplots for at least an hour. What kind of a quake does that?
Included just a few in a quick grab. The rest look almost identical from across the globe.
https://earthquake.usgs.gov/monitoring/operations/heliplot.php
That seismo needle is seriously freaking out for a while. Looks like the whole earth was shaking for a long time.