On 16 September 2015, a great (Mw 8.3) interplate thrust earthquake ruptured offshore Illapel, Chile, producing a 4.7-m local tsunami. The last major rupture in the region was a 1943 MS 7.9 event. Seismic methods for rapidly characterizing the source process, of value for tsunami warning, were applied. The source moment tensor could be obtained robustly by W-phase inversion both within minutes ...

Moment tensors derived from seismic measurements during earthquakes are related to stress tensors and keep important information about surface displacement in the earth’s mantle. We present methods facilitating an interactive visualization of scattered moment data to support earthquake and displacement analysis. For this goal, we combine and link visualizations of spatial location and orientati...

[1] While it is agreed that the great Sumatra earthquake of December 26, 2004 was among the largest earthquakes of the past century, there has been disagreement on how large it was, which part of the fault ruptured, and how the rupture took place. We present a centroid-moment-tensor (CMT) analysis of the earthquake in which multiple point sources are used in the inversion to mimic a propagating...

The main tectonic features in our study region are indicated in Fig. S1. We use 190 earthquakes for the iterative structure inversion (Fig. S2a). Most of the earthquakes are shallow (< 30 km), occurred from 1996 to 2011 (Fig. S3), and are evenly distributed along the North Atlantic Ridge and the Mediterranean-Himalayan belt. Initial source parameters (e.g., centroid time, location, etc.) are co...

The dynamic tensile failure of rock is a main mode in deep underground engineering projects. microscopic mechanism analysis this plays key role disaster warning. Moment tensor inversion very well-known method used to analyze mechanisms. However, an acoustic emission (AE) event cannot be accurately distinguished experiments at the laboratory scale, because there are hundreds AE events generated ...