TY  - JOUR
A1  - Palo, Mauro
A1  - Tilmann, Frederik
A1  - Krüger, Frank
A1  - Ehlert, Lutz
A1  - Lange, Dietrich
T1  - High-frequency seismic radiation from Maule earthquake (M-w 8.8, 2010 February 27) inferred from high-resolution backprojection analysis
JF  - Geophysical journal international
N2  - We track a bilateral rupture propagation lasting similar to 160 s, with its dominant branch rupturing northeastwards at about 3 kms(-1). The area of maximum energy emission is offset from the maximum coseismic slip but matches the zone where most plate interface aftershocks occur. Along dip, energy is preferentially released from two disconnected interface belts, and a distinct jump from the shallower belt to the deeper one is visible after about 20 s from the onset. However, both belts keep on being active until the end of the rupture. These belts approximately match the position of the interface aftershocks, which are split into two clusters of events at different depths, thus suggesting the existence of a repeated transition from stick-slip to creeping frictional regime.
KW  - Earthquake source observations
KW  - Wave propagation
KW  - Subduction zone processes
Y1  - 2014
U6  - https://doi.org/10.1093/gji/ggu311
SN  - 0956-540X
SN  - 1365-246X
VL  - 199
IS  - 2
SP  - 1058
EP  - 1077
PB  - Oxford Univ. Press
CY  - Oxford
ER  -