Heightened Odds of Large Earthquakes Near Istanbul: An Interaction-Based Probability Calculation
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TLDR
The probability of strong shaking in Istanbul from the description of earthquakes on the North Anatolian fault system in the Marmara Sea during the past 500 years is calculated and the resulting catalog is tested against the frequency of damage in Istanbul during the preceding millennium.Abstract:
We calculate the probability of strong shaking in Istanbul, an urban center of 10 million people, from the description of earthquakes on the North Anatolian fault system in the Marmara Sea during the past 500 years and test the resulting catalog against the frequency of damage in Istanbul during the preceding millennium. Departing from current practice, we include the time-dependent effect of stress transferred by the 1999 moment magnitude M = 7.4 Izmit earthquake to faults nearer to Istanbul. We find a 62 ± 15% probability (one standard deviation) of strong shaking during the next 30 years and 32 ± 12% during the next decade.read more
Citations
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