Re: [Phys-L] Seismic shock wave (bernard cleyet)

[bernard cleyet <bernard@cleyet.org>]

> On 2020/Oct/11, at 09:28, Dan Beeker via Phys-l <phys-l@mail.phys-l.org> wrote:
>
> “bc   hasn't?t yet found a ?lay" article that explains how an atmospheric shock wave is created.”
>
> Did you perhaps mean seismic shock wave?

The explanation for the seismic was included in the article.  ( I assume primary -longitudinal- speed in less compact earth slower, so “waves pile up”. Secondary -transverse-attenuated? and also slower?  

If I weren’t so busy, I’d research in my ton of earthquake books.  I bought them when researching effect of quakes on pendula.  The majority of freq. band is in the range of long clock pendula!,  ¡desaforadamente!

bc   



> Dan Beeker
>
> PureUnobtanium.com
> Indiana University - retired
>
>
>   1. Seismic shock wave (bernard cleyet)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 10 Oct 2020 09:56:55 -0700
> From: bernard cleyet <bernard@cleyet.org>
> To: "phys-l@phys-l.org" <phys-l@phys-l.org>
> Subject: [Phys-L] Seismic shock wave
> Message-ID: <E2410590-CB63-4A16-8717-CC11792AE20A@cleyet.org>
> Content-Type: text/plain;	charset=utf-8
>
> Kohler says that when seismic waves from an earthquake enter the softer sediments that fill in the basin underneath Los Angeles, the waves slow down and their energy piles up, creating larger-amplitude waves that lead to stronger shaking.  
> …
>
> bc   hasn't?t yet found a ?lay" article that explains how an atmospheric shock wave is created.  
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@mail.phys-l.org
> https://www.phys-l.org/mailman/listinfo/phys-l