Something happened after 4 p.m. at Lake FUBAR. It made a big fluid movement jump on the charts. LA17 shows it well but it shows on other helicorders too. It may have been set off by Central American large quakes today. Plus the Guatemala volcano is acting up. They can all be seen on the RSOE map.
A good map shown here:
LINK – http://youtu.be/Req59IFfi6M