期刊
SCIENCE ADVANCES
卷 3, 期 12, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aap7528
关键词
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资金
- King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia [BAS/1339-01-01, URF/1/2160-01-01]
- NSF (CAREER award) [EAR-1151926]
- Agence Nationale de la Recherche through the HYDROSEIS project [ANR-13-JS06-0004-01]
- Observatoire de la Cote d'Azur
- Agence Nationale de la Recherche (ANR) [ANR-13-JS06-0004] Funding Source: Agence Nationale de la Recherche (ANR)
Injection-induced earthquakes pose a serious seismic hazard but also offer an opportunity to gain insight into earthquake physics. Currently used models relating the maximum magnitude of injection-induced earthquakes to injection parameters do not incorporate rupture physics. We develop theoretical estimates, validated by simulations, of the size of ruptures induced by localized pore-pressure perturbations and propagating on prestressed faults. Our model accounts for ruptures growing beyond the perturbed area and distinguishes self-arrested from runaway ruptures. We develop a theoretical scaling relation between the largest magnitude of self-arrested earthquakes and the injected volume and find it consistent with observed maximum magnitudes of injection-induced earthquakes over a broad range of injected volumes, suggesting that, although runaway ruptures are possible, most injection-induced events so far have been self-arrested ruptures.
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