[Rockhounds] Earthquake Swarm Hits World’s Largest Volcano
Kreigh Tomaszewski
kreigh at gmail.com
Wed Mar 31 18:40:52 PDT 2021
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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