[Rockhounds] Earthquake Swarm Hits World’s Largest Volcano

[Axel Emmermann]

If I was asked to design a telescope on a place like that, it would float on oil, and have tremor-proof  dampeners.
I don't know how they actually did it but I think they probably have that covered, Linda 😉

Cheers
Axel
 

-----Oorspronkelijk bericht-----
Van: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> Namens linda at middleearthminerals.com
Verzonden: zaterdag 3 april 2021 21:39
Aan: 'Rockhounds at drizzle.com: A mailing list for rock and gem collectors' <rockhounds at rockhounds.drizzle.com>
Onderwerp: Re: [Rockhounds] Earthquake Swarm Hits World’s Largest Volcano

I wonder if those long-exposure photos made through the telescopes are messed up when an earthquake rumbles through?  Perhaps not, because by definition, the long exposure means they're only gathering a few photons at a time, and if the earthquake moves the telescopes for a few seconds out of many minutes, a few stray photons might not matter?  Obviously, just guessing, so if someone else knows, please enlighten (yes, pun intended) me!

-----Original Message-----
From: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> On Behalf Of Kreigh Tomaszewski
Sent: Saturday, April 3, 2021 12:33 PM
To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors <rockhounds at rockhounds.drizzle.com>
Subject: Re: [Rockhounds] Earthquake Swarm Hits World’s Largest Volcano

Mauna Kea is about 35 miles from Mauna Loa, with a big valley between them.

On Sat, Apr 3, 2021 at 2:07 PM Tim Fisher <nospam at orerockon.com> wrote:

> Isn't that dangerously close to the Mauna Kea telescopes? I don't see 
> anything mentioning them.
>
> Tim Fisher
> Http://OreRockOn.com
> Email nospam at orerockon.com
>
>
>
> -----Original Message-----
> From: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] On 
> Behalf Of Kreigh Tomaszewski
> Sent: Wednesday, March 31, 2021 6:41 PM
> To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
> Subject: [Rockhounds] Earthquake Swarm Hits World’s Largest Volcano
>
> An earthquake swarm continues on Mauna Loa, known as the world’s 
> largest active volcano. While nearby smaller Kilauea Volcano is 
> erupting, Mauna Loa is not yet at this time. But that could change with time.
>
> Beginning at 2:30 am HT on March 29, 2021, the U.S. Geological 
> Survey’s
> (USGS)  Hawaiian Volcano Observatory (HVO)  recorded over 130 
> earthquakes beneath the northwest side of Mauna Loa’s summit, about  26 miles west
> northwest of the town of Volcano, Hawaii.   According to HVO, most of these
> earthquakes are occurring in a cluster about  1 mile  wide and  3.5–5 
> miles below the surface.
>
> The swarm continues this morning, with a 2.6 earthquake recorded in 
> Pahala at 2:03 am HT.
>
> The largest event in the sequence, so far, was a magnitude-2.7 
> earthquake, with the bulk of the events being less than magnitude-2.
> Only one event was reported felt by a resident and was described as 
> weak shaking with a maximum Intensity of II on the Modified Mercalli 
> Intensity Scale.
>
> https://weatherboy.com/earthquake-swarm-hits-worlds-largest-volcano/
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