It lasted over 1/2 an hour. Really BIG! It looked like this, LA17
And before that all the helicorders had an OUTAGE from after 5 til after 7 p.m. . . — OR — someone removed the data then. Many helicorders showed a half hour of fluid movement at 1 p.m..
Here’s the LA12 chart:
At 8 A.M. there is big fluid movement again showing on LA17. Maybe they are ading/removing water with pumps. It looks suspicious when it happens during work hours even though they say they are on a Code 2. There was a 6.2 quake in Chile about that time.