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2 earthquakes shake Hawaii island

By Craig Gima

LAST UPDATED: 02:10 p.m. HST, Aug 11, 2013

Two earthquakes near Volcano on the Big Island were widely felt this morning, but caused no major damage.

A magnitude 4.8 earthquake hit at about 5:54 a.m. about 10 miles south of Volcano at a depth of 20 miles, according to the United States Geological Survey. Its magnitude was initially estimated at 4.6.

It was followed by aftershocks, including a magnitude 3.4 earthquake at about 6:07 a.m. in the same location.

People from Captain Cook to Honolulu, 215 miles away, reported feeling the earthquake on the USGS "Did you feel it?" website.

The Pacific Tsunami Warning Center said no tsunami was generated by the earthquake on land.

Scientists said the earthquake was centered in the Hilina region of Kilauea Volcano. about 5 miles south of the summit, almost directly under the Kulanaokuaiki campground within Hawaii Volcanoes National Park.

Hawaiian Volcano Observatory scientists said the earthquake was likely caused by the weight of the island causing a shift in the earth's mantle.

"The earthquake likely occurred on a near-horizontal fault plane in the mantle, which has hosted earthquakes in this region before.  Despite their location near Kilauea’s summit, it’s unlikely that the earthquakes were volcanic in nature due to their depth, which is below, and offset from, the volcano’s known magma plumbing system,” said

Wes Thelen, the observatory's seismic network manager.

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pueo58 wrote:
We felt them in Kaneohe!
on August 11,2013 | 07:16AM
cojef wrote:
Are the intensity of the quakes getting stronger and more frequent? Portent of something big to follow?
on August 11,2013 | 07:24AM
mustangguru wrote:
Global warming.
on August 11,2013 | 07:33AM
soundofreason wrote:
Bush's "fault".
on August 11,2013 | 10:36AM
palani wrote:
Did Hillary land?
on August 11,2013 | 11:38AM
allie wrote:
on August 11,2013 | 12:01PM
dpinsacto wrote:
We felt it in Waikiki. At first we thought it was the wind blowing against our high-rise.
on August 11,2013 | 08:18AM
palani wrote:
Dang! It was raining hard in Laie at that time, so I missed it.
on August 11,2013 | 11:59AM
allie wrote:
hugs her palani
on August 11,2013 | 12:01PM
AshesofAngels wrote:
Hilina region of Kilauea Volcano is a bad area to start experiencing series of earthquakes, especially if as the scientist say because of it's depth that it is likely caused because of the weight of the island causing a shifting in the earths mantle. It spells bad stuff to come, like oh I don't know maybe the entire East Rift Zone collapsing and the shelf falling off into the sea! If you were to calculate the sheer volumetric mass of material which makes up the entire island from sea floor to snow caps than it could be safe to say that you could probably have the heaviest single object on the planet. If you figure all of that dead weight sitting on the crust which in turn would cause a depression on the crust which in turn affects the mantle. Not a good out look!
on August 11,2013 | 04:42PM
Slow wrote:
Can I buy your property?
on August 11,2013 | 07:56PM
Skyler wrote:
I was asleep. :-/
on August 11,2013 | 09:40PM
Nesmith wrote:
I felt it in Kakaako on the 30th floor.
on August 12,2013 | 01:52AM
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