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BRKG ...USGS reports earthquake of 6.1 magnitude south of Fiji shortly after magnitude 6.6 tremor - USGS
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[quote:°Lucy°:MV8yNTQzMzMxXzQ0MTEyMzM4X0EwMjdFNkIx] [quote:Anonymous Coward 41180126:MV8yNTQzMzMxXzQ0MTEyMTEwXzlGNEVEODZG] Is this all that we can come out with right now? Really? [/quote] The quake happened within the mantle. Last year had a 8.3 Mantle quake. http://www.livescience.com/39791-biggest-deep-earthquake-a-mystery.html [i] "It looks so similar to shallow events, even though it's got 600 kilometers of rock on top of it. It's hard to understand how such an earthquake occurs at all under such huge pressure." One possibility is that water or liquid carbon dioxide somehow seeped into the crack to lubricate it, thereby allowing the two slabs of rock to slide past each other more quickly. But though water and gas from the ocean may seep into the shallower depths of the Earth's surface, it's difficult to see how water could seep so deep below. "There may be some source of fluid that we haven't recognized," Lay said. Rock transformation Another possibility is that the main type of rock found at this depth, called olivine, goes through a mineral transformation because of the enormous pressures it is under, which then triggers sliding between different types of rock. A second paper in the same issue of Science bolsters the case for mineral transformation as the culprit for massive deep earthquakes.[/i] [/quote]
Original Message
USGS reports earthquake of 6.1 magnitude south of Fiji shortly after magnitude 6.6 tremor - USGS
Event Time
2014-05-04 09:15:53 UTC
2014-05-04 21:15:53 UTC+12:00 at epicenter
2014-05-04 11:15:53 UTC+02:00 system time
Location
24.642°S 179.084°E depth=527.6km (327.8mi)
Nearby Cities
497km (309mi) SSW of Ndoi Island, Fiji
703km (437mi) SW of Nuku`alofa, Tonga
722km (449mi) S of Suva, Fiji
777km (483mi) SSE of Nadi, Fiji
911km (566mi) S of Lambasa, Fiji
[
link to earthquake.usgs.gov
]
[
link to earthquake.usgs.gov
]
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