Mathematics – Probability
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ep%26s...56..621s&link_type=abstract
Earth, Planets and Space, Volume 56, p. 621-633.
Mathematics
Probability
1
Scientific paper
The Philippine Sea coast of central-southwest Japan tilts oceanward during interseismic periods and peninsulas uplift suddenly at the time of great earthquakes. Tide gauge data indicate that precursory uplifts of the peninsulas occurred during about the decade prior to the occurrence of recent earthquakes. I construct a model to interpret the precursory uplifts on the basis of the model which assumes a fractal distribution of asperities. I calculate uplifts due to slow failures of smaller asperities contained in the rupture zone, assuming that the probability of breakage of the smallest unit asperity increases linearly over time. The time of breakage of one of the largest asperities isthe time of the occurrence of a great earthquake, t f . I conduct a least squares fitting to the residual uplift data prior to great earthquakes to constrain t f . Applications to tide gauge data before the 1923 and 1946 earthquakes give t f = 1923.2 (± 1.6), and 1943.7 (± 2.7), respectively. For the expected Tokai earthquake, I obtain t f = 2007.6 (-5.4, +2.8) using precise leveling data. The intermediate-term precursors of a decade may be useful to limit the expected time of occurrence of coming great earthquakes, filling the gap between long-term and short-term earthquake predictions.
No associations
LandOfFree
Intermediate-term precursors of great subduction zone earthquakes: An application for predicting the Tokai earthquake does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Intermediate-term precursors of great subduction zone earthquakes: An application for predicting the Tokai earthquake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermediate-term precursors of great subduction zone earthquakes: An application for predicting the Tokai earthquake will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1009500