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Magnitude
7.7 Mwc
± 0.04
Location
49.784°N, 145.126°E
± 14.5 km
Depth
625.9 km
± 6.9 km
Number of Stations Used
1122
Number of Phases Used
1132
Minimum Distance
1735.5 km (15.59°)
Travel Time Residual
0.68 sec
Azimuthal Gap
16°
Review Status
REVIEWED
Event ID
usc000bz29
Originally posted by murkraz
Originally posted by SpaceJockey1
reply to post by wasobservingquietly
Was only a matter of time
Anyone want to predict when & where the next 7+ quake will strike?
Can't believe it's been almost 4 months since the last one!
ADD: Sorry to those in Japan...seems like I awoke the 'earthquake gods' as there have now been 4 quakes between 4 and 5 mag in the last few hours (3 of them around the Ryukyu Islands alone!edit on 6-8-2012 by SpaceJockey1 because: added
I'm thinking off Russia or Alaska, though it could also be anywhere near Oregon or CA.
Just a prediction like you asked for, though. No basis, just guessing.
Originally posted by kennvideo
Deep earthquake with 7.5 magnitude hits off eastern Russia, north of Japan: USGS
The arc extends about 2,100 km from Hokkaido, Japan, along the Kuril Islands and the Pacific coast of the Kamchatka, Russia, peninsula to its intersection with the Aleutian arc near the Commander Islands, Russia. It marks the region where the Pacific plate subducts into the mantle beneath the Okhotsk microplate, a part of the larger North America plate. This subduction is responsible for the generation of the Kuril Islands chain and the deep offshore Kuril-Kamchatka trench. Relative to a fixed North America plate, the Pacific plate is moving northwest at a rate that decreases from 83 mm per year at the arc's southern end to 75 mm per year near its northern edge.
Subduction zones such as the Kuril-Kamchatka arc are geologically complex and produce numerous earthquakes from multiple sources. Deformation of the overriding North America plate generates shallow crustal earthquakes, whereas slip at the interface of the plates generates interplate earthquakes that extend from near the base of the trench to depths of 40 to 60 km. At greater depths, Kuril-Kamchatka arc earthquakes occur within the subducting Pacific plate and can reach depths of nearly 700 km. Since 1900, eight great earthquakes (M8.3 or larger) have occurred along the Kuril-Kamchatka arc. They are the M8.4 1923 Kamchatka earthquake, the M8.6 1933 Sanriku-oki, Japan earthquake, the M9.0 1952 Kuril Island earthquake, the M8.4 1958 Kuril Island earthquake, the M8.5 1963 Kuril Island earthquake, the M8.4 1994 Kuril Island earthquake, the M8.3 2003 Hokkiado, Japan earthquake, and the M8.3 2006 Kuril Island earthquake.edit on 13-8-2012 by kennvideo because: info
Originally posted by murkraz
Originally posted by murkraz
Originally posted by SpaceJockey1
reply to post by wasobservingquietly
Was only a matter of time
Anyone want to predict when & where the next 7+ quake will strike?
Can't believe it's been almost 4 months since the last one!
ADD: Sorry to those in Japan...seems like I awoke the 'earthquake gods' as there have now been 4 quakes between 4 and 5 mag in the last few hours (3 of them around the Ryukyu Islands alone!edit on 6-8-2012 by SpaceJockey1 because: added
I'm thinking off Russia or Alaska, though it could also be anywhere near Oregon or CA.
Just a prediction like you asked for, though. No basis, just guessing.
Do I win cookies?
In any case, here's the long awaited 7, hopefully it's the last big one for 2012.
Originally posted by Roald
The quakes are not far from oilrigs. Wonder how they handled the quakes. And my main hub is located not far from Yozhno Sakhalinsk airport.
Ahh.. Too deep to be of any concerned and it could barely be felt at the airport.
edit on 13/8/2012 by Roald because: Too deep
The majority of tectonic earthquakes originate at the ring of fire in depths not exceeding tens of kilometers. Earthquakes occurring at a depth of less than 70 km are classified as 'shallow-focus' earthquakes, while those with a focal-depth between 70 and 300 km are commonly termed 'mid-focus' or 'intermediate-depth' earthquakes. In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, deep-focus earthquakes may occur at much greater depths (ranging from 300 up to 700 kilometers).[14] These seismically active areas of subduction are known as Wadati-Benioff zones. Deep-focus earthquakes occur at a depth where the subducted lithosphere should no longer be brittle, due to the high temperature and pressure. A possible mechanism for the generation of deep-focus earthquakes is faulting caused by olivine undergoing a phase transition into a spinel structure.[15]
In any case, here's the long awaited 7, hopefully it's the last big one for 2012.