Helicorders Showing Lots of Activity

FRIDAY

LA12 shows many types of seismic grumbles.   heli_button Some of the recent Central American earthquakes may have shown up on the helicorders. No statement by the officials or USGS on it.

APPJ_blog

SATURDAY

Something went “PLOP!” just before 2.a.m..   This Guatemala volcano might make a ruckus too. LA15 is still out of commission.  LA17 just went down too.Helicorder_13_15out

Thanks David H. for the news tip – 😉

A reader, Rick sent in this screen shot from ANF of large Northern Hemisphere (N. Atlantic) earthquakes that may have affected the helicorders.  eq_8_17_13

SUNDAY

Heli_ANI

Big seismic activity shown on the helicorders. LA12 shows what’s happening.

The following helicorders are out of service:

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15 thoughts on “Helicorders Showing Lots of Activity

  1. Posted 11 hours ago – U.S. Geological Survey

    An earthquake with magnitude 6.5 occurred near WELLINGTON, New Zealand at 02:31:07.42 UTC on Aug 16, 2013. (This event has been reviewed by a seismologist.)
    here’s the link http://www.google.org/publicalerts/alert?aid=833e79c37e52d641&hl=en&gl=US&source=web

    At this exact time, #12 was doing those crazy lines. You have to look back to August 15th to see the UTC time scale, but they coincide.

    Our earth is so fragile. I wonder if it is just the land being monitored that shows signs of the shaking or could you literally get those shake monitors to go off anywhere on earth following a 6.5M earthquake?

    • I just answered my own question–here is the record from the helocorders NOT at Bayou Corne.

      I think this was felt everywhwhere. This still does not bode well for the fragile ground there, but I love it when its not JUST your problem Louisiana!

    • The distance from New Orleans to New Zealand is 7679.9 Miles on the surface.

      P waves can travel 1 – 5 miles a second, and travel as a straight line through the earth.

      So it would have taken the P waves 20 – 25 mins to reach Lake Fubar. Which by curious coincidence is the time at which last nights weirdness started ( 21:51:30 CDT ).

      So it’s well within the realms of possibility that the New Zealand quake rang Lake Fubars bell… HARD!!!

      Though I’m at a loss as to why LA 10 surface, LA 10 mid & LA 17 284m didn’t pick it up, when all the others did.

    • I think yr right! The shakemap RSS feed is on the sidebar with the times. UTC is on the right side of the helicorder charts.

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