Skip to comments.Earthquake off Siberian land mass was the 'largest deep earthquake' ever recorded
Posted on 09/22/2013 6:02:21 AM PDT by TigerLikesRooster
Earthquake off Siberian land mass was the 'largest deep earthquake' ever recorded
By The Siberian Times reporter
21 September 2013
Scientists are puzzling to explain the tremor, 8.3 on the Richter scale, by far the largest since records began
The quake broke other records, too, as outlines in journal Science. The rupture extended about 180 km, by far the longest known rupture. Picture: Picture: Alexey Yemanov via copah.info
The earthquake struck 609 km beneath the Sea of Okhotsk on 24 May this year, and is seen as 30% larger than its nearest rival, a 1994 earthquake 637 km beneath Bolivia, according to researchers.
'It's a mystery how these earthquakes happen. How can rock slide against rock so fast while squeezed by the pressure from 610 kilometres of overlying rock?' said Thorne Lay, professor of Earth and planetary sciences at the University of California, Santa Cruz.
They would have expected the intense pressure on the fault to inhibit the kind of dramatic movement. The Sea of Okhotsk quake released three times as much energy as the 1994 Bolivia earthquake, comparable to a 35 megaton TNT explosion, said scientist Lingling Ye and Lay and their coauthors.
The quake broke other records, too, as outlines in journal Science. The rupture extended about 180 km, by far the longest known rupture.
This deep quake resulted in shear faulting with a fast rupture velocity of about 4 km per second, more like a conventional earthquake near the surface than other deep earthquakes. Analysist showed the fault slipped as much as 10 metres, compared with an average of about 2 metres.
'It looks very similar to a shallow event, whereas the Bolivia earthquake ruptured very slowly and appears to have involved a different type of faulting, .....
(Excerpt) Read more at siberiantimes.com ...
Perhaps it’s worth remembering that about 250 million years ago the largest known period of volcanic activity occurred in Siberia. Extinction event. Siberian Traps if I recall correctly. Happy Sunday!
The Sea of Okhotsk quake released three times as much energy as the 1994 Bolivia earthquake
30% larger = 3x the energy? How does this work, exactly?
If "Larger" is not "energy released", then what is it?
So which volcano is going to blow as a result of this?
The fault of Global Warming and George Bush combined.
The Richter scale is logarithmic. The difference between a 5 and a 6 is not 1x, it is 10x. The difference between a 5 and a 7 is not 2x. It is 100x.
So a .3 increase in the size is 3x.
I didn’t feel anything.
Was this reported by anyone besides Russia?
Funny how so many things are “reported” to be so much bigger and so much more dramatic about anything Russian.
Gaia is twerking.
How far back could the records go?
Guessing they would need three direction seismometers to record the depth?
But an increase from 5 to 5.3 or 8 to 8.3 is not 30% is it?
Thinking it out here...
If the scale is logarithmic, an 8.3 is three times as powerful as an 8.
You are correct...it’s not 30% more powerful. It is 3x more powerful, or (gasp) a 300% increase.
It just “seems” to be too much, but you are correct.
Could this be related to the poles shifting, probably moving toward reversing?