Weeks‐Long and Years‐Long Slow Slip and Tectonic Tremor Episodes on the South Central Alaska Megathrust - Rousset - 2019 - Journal of Geophysical Research: Solid Earth - Wiley Online Library
Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Share a link We jointly investigate aseismic slip transients and tremor activity in south central Alaska. Near the eastern downdip edge of the Mw 9.2 1964 Prince Williams earthquake rupture, kinematic modeling of the Mw=7.6 2009–2013 slow slip event suggests cumulative transient slip of up to 55 cm. During this 5-year transient event, tectonic tremors were co-located with the inferred aseismic slip zone and occurred in weeks-long bursts of events. A short-term transient deformation event is observed in the GPS time series spanning a tremor burst in September 2010. The time-dependent slip modeling of this Mw=6.9 subevent shows that it migrated along strike with tremor at speeds of ∼8 km/day and with slip rates of ∼3 mm/day. It released 9% of the 5-year transient event total moment in 1.4% of its duration. The decomposition of GPS time series relative to tremor times during the w
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