Title: Nucleation phase of earthquakes: from Mw-3 labquakes to the 700km deep Mw 7.8 Ogasawara earthquake<\/p>\n
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Abstract:
\nSince the early 1960s, earthquakes have been modeled, theoretically, numerically, and\/or analogically, by a \u00ab spring-slider” type of system, whose dynamics depends on the friction law. An interesting property of these systems is the emergence of a nucleation phase, during which the mechanical instability (pre-slip) grows and accelerates to reach dynamic equilibrium. We will show that some scaling and statistical properties (premonitory Omori, migration, decreasing b-value, etc\u2026) of this phase can be studied, in detail, at in-situ conditions of the Earth’s crust, on rocks in the laboratory. Finally, using a template matching approach, we will suggest that even (large) deep earthquakes seem to present some sort of nucleation phase.<\/p>\n","protected":false},"excerpt":{"rendered":"