[Rockhounds] Earthquake Swarm Hits World’s Largest Volcano

Axel Emmermann axel.emmermann at telenet.be
Sun Apr 4 03:12:18 PDT 2021


Indeed, Tim...
OTOH... "Pele's hair" can be carried quite far by wind.
"lauoho o Pele", as the Hawaii people call it is finely spun volcanic glass. It can fly kilometers in strong winds.

Cheers 
Axel

-----Oorspronkelijk bericht-----
Van: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> Namens Tim Fisher
Verzonden: zondag 4 april 2021 1:40
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

That's what I meant, damage from a quake. I didn't think that lava raining down on them would be very likely.

Tim Fisher
Http://OreRockOn.com
Email nospam at orerockon.com




-----Original Message-----
From: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] On
Behalf Of Axel Emmermann
Sent: Saturday, April 03, 2021 3:09 PM
To: 'Rockhounds at drizzle.com: A mailing list for rock and gem collectors'
Subject: Re: [Rockhounds] Earthquake Swarm Hits World’s Largest Volcano

Mauna Loa and Mauna Kea are on opposite sides of the Big Island (Hawaii).
Well, not quite completely opposite sides but near enough.
In between the two volcanoes is the "Saddle". It's a broad valley so there
is no chance of any material that's spewed out by Mauna Loa would land on
the telescopes on Mauna Kea, which are at a height of 4.100 m. 
Standing on Mauna Kea, however, on can see a distinct blue veil of sulfurous
oxides that clings to the Mauna Loa slopes. Not at the top but at about 2/3
up from the saddle to the top. These fumes are quite corrosive... I've never
seen so many rusty cars as when we drove down from the saddle to Captain
Cook and further south towards Milolii. Once you come to the south-west of
Mauna Loa, you can actually smell the sulfur and see lots of corroded metal.

What IS bad for the telescopes are tremors, I guess... 

Cheers
Axel


-----Oorspronkelijk bericht-----
Van: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> Namens Tim
Fisher
Verzonden: zaterdag 3 april 2021 20:06
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

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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