[Rockhounds] Earthquake Swarm Hits World’s Largest Volcano

[Kreigh Tomaszewski]

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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