Why Russian scientists have listed the Siberian earthquake as a 9.5 event

December 28, 2011MOSCOWThe intensity of a powerful earthquake that rocked the southeastern part of Siberia on Tuesday reached 9.5, Russian Emergency Situations Minister Sergei Shoigu said at a teleconference in the early hours of Wednesday. “The earthquake’s intensity in the epicenter has been estimated at 9.5. The main threat will come tomorrow morning. As soon as the people wake up, they will see cracks in the walls, stoves, and chimneys,” he said. It was reported earlier that an earthquake reaching 8-9 in the epicenter had been recorded in the Kaa-Khemsky district of Tyva 100 kilometers east of Kyzyl at a depth of 10 kilometers at 7:22 p.m. Moscow time on Tuesday. The earthquake’s magnitude reached 6.7. The tremors were felt in Tyva, Khakasia, the Krasnoyarsk territory and the Irkutsk region. Preliminary reports indicate that the quake did not cause casualties and significant destruction. The population of the Kaa-Khemsky district is about 12,700 people. Emergency Situations Ministry experts are examining communities now. –KYIV 
The Russian earthquake scale: The Russian system measures earthquake intensity and the 9.5 of the Siberian quake does not reflect magnitude. The Medvedev-Sponheuer-Karnik scale, also known as the MSK or MSK-64, is a macroseismic intensity scale used to evaluate the severity of ground shaking on the basis of observed effects in an area of the earthquake occurrence. The scale was first proposed by Sergei Medvedev (USSR), Wilhelm Sponheuer (East Germany), and Vít Kárník (Czechoslovakia) in 1964. It was based on the experiences being available in the early 1960s from the application of the Modified Mercalli scale and the 1953 version of the Medvedev scale, known also as the GEOFIAN scale. With minor modifications in the mid-1970s and early 1980s, the MSK scale became widely used in Europe and the USSR. In early 1990s, the European Seismological Commission (ESC) used many of the principles formulated in the MSK in the development of the European Macroseismic Scale, which is now a de facto standard for evaluation of seismic intensity in European countries. MSK-64 is still being used in India, Israel, Russia, and throughout the Commonwealth of Independent States. The Medvedev-Sponheuer-Karnik scale is somewhat similar to the Modified Mercalli (MM) scale used in the United States. The MSK scale has 12 intensity degrees expressed in Roman numerals (to prevent the use of decimals). Wikipedia
This entry was posted in Earth Changes, Earth Watch, Earthquake Omens?, High-risk potential hazard zone, Seismic tremors, Signs of Magnetic Field weakening. Bookmark the permalink.

11 Responses to Why Russian scientists have listed the Siberian earthquake as a 9.5 event

  1. John says:

    Two different scales. The 9.5 on the MSK scale equals only 6.7 on the Richter scale, so NOT a once in lifetime earthquake…


  2. Irene C says:

    Fascinating. I always thought that they all used the same scale. (I learn something new every day.) So, which scale is more accurate or is there really a comparison?



  3. david says:

    A state of emergency has been declared in Tuva, Central Siberia, close to the border with Mongolia. An earthquake of magnitude 6.7 on the Richter scale hit the area in the early hours of Wednesday. The Russian Emergency Situations Ministry has dispatched extra units to the region to deal with the aftermath of the quake, as well as the aftershocks which have occurred…

    Oleg Starovoit, deputy Director for scientific work at the Russian Academy of Sciences’ Geophysics Service says that nobody expected an earthquake of such a magnitude. “Earthquakes of such force are rare in Tuva, and therefore, it cannot be called a typical phenomenon…

    The people of Tuna remain calm, and many people are already reportig the quake in their blogs and on their sites. Their comments show no evidence of panic. Seismologists have analyzed the seismic state of Tuva for the past 20 years, and they have concluded that a shift in the earth’ crust in the region is possible within a month, but no serious damage will occur. http://hisz.rsoe.hu/alertmap/site/?pageid=event_desc&edis_id=EQ-20111228-33568-RUS


  4. david says:

    On another note, Massive solar storm ‘could knock out radio signals’ over next three days, warn scientists



  5. This is very very unusual earthquake in my prediction history since 1996 and this time I got confused while analysing the peculiar precursor registered at my Sun Shadow Deviation observatory located at my home Coimbatore, South India which is never forgetable. Finally I have
    fixed the place as Western Australia considering the outgoing long wave radiation sat view. Hence I have omitted Siberia location. But hereafter I am more cautious about Siberia location. My findings are regularly updated at http://earthquake.itgo.com/today.htm


  6. Well, we Russians count differently, whether it’s votes or earth quakes. Makes it easier to have landslide victories …


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