Tuesday, April 21, 2020

One of the seismographs up at Lassen is registering some unusual and sustained harmonic tremor today, starting at about 7:30 this morning and continuing.

None of the other four are showing anything other than the usual bumps and nudges, so who knows.  If this is followed up by some earthquakes, it will bear a closer look.


1 comment:

  1. What's shakin' baby?

    Sorry, couldn't help myself.

    Thanks for the post.
    Paul L. Quandt

    ReplyDelete