Regional Seismic Activity after 2012 M8.6 Sumatra Earthquake

The 2012 Sumatra great earthquake sequence

recorded (moment magnitudes Mw1⁄48.6 and 8.2). Broadband seismological observations of the Mw1⁄48.6 mainshock indicate a large centroid depth ( 30 km) and remarkable rupture complexity. Detailed study of the surface-wave directivity and moment rate functions clearly indicates the partition of the rupture into at least two distinct subevents. To account for these observations, we developed a pro...

Earthquake in a maze: compressional rupture branching during the 2012 M(w) 8.6 Sumatra earthquake.

Seismological observations of the 2012 moment magnitude 8.6 Sumatra earthquake reveal unprecedented complexity of dynamic rupture. The surprisingly large magnitude results from the combination of deep extent, high stress drop, and rupture of multiple faults. Back-projection source imaging indicates that the rupture occurred on distinct planes in an orthogonal conjugate fault system, with relati...

Management of musculoskeletal injuries after the 2009 western Sumatra earthquake.

PURPOSE To report injury patterns and management of musculoskeletal injuries after an earthquake. METHODS 94 male and 161 female patients aged 17 to 90 (mean, 53) years underwent surgery for musculoskeletal injuries. Their injury patterns, anaesthesia administered, surgeries undertaken, and development of postoperative complications were reviewed. RESULTS Of the 255 patients, 155 sustained ...

Time-reversal imaging of seismic sources and application to the great Sumatra earthquake

[1] The increasing power of computers and numerical methods (like spectral element methods) allows continuously improving modelization of the propagation of seismic waves in heterogeneous media and the development of new applications in particular time reversal in the three-dimensional Earth. The concept of time-reversal (hereafter referred to as TR) was previously successfully applied for acou...

Seismic activity of the Nevados de Chillán volcanic complex after the 2010 Mw8.8 Maule, Chile, earthquake