TY  - JOUR
PY  - 2011//
TI  - Shallow Dynamic Overshoot and Energetic Deep Rupture in the 2011 Mw 9.0 Tohoku-Oki Earthquake
JO  - Science
A1  - Beroza, Gregory C.
A1  - Baltay, Annemarie
A1  - Ide, Satoshi
SP  - 1426
EP  - 1429
VL  - 332
IS  - 6036
N2  - Strong spatial variation of rupture characteristics in the M(w) 9.0 Tohoku-Oki megathrust earthquake controlled both the strength of shaking and the size of the tsunami that followed. Finite-source imaging reveals that the rupture consisted of a small initial phase, deep rupture for up to 40 s, extensive shallow rupture at 60 to 70 s, and continuing deep rupture lasting over 100 s. A combination of a shallow dipping fault and a compliant hanging wall may have enabled large shallow slip near the trench. Normal faulting aftershocks in the area of high slip suggest dynamic overshoot on the fault. Despite prodigious total slip, shallower parts of the rupture weakly radiated at high frequencies, whereas deeper parts of the rupture radiated strongly at high frequencies.<p />  <p>Language: en</p>
LA  - en
SN  - 0036-8075
UR  - http://dx.doi.org/10.1126/science.1207020
ID  - ref1
ER  -