The onshore continental margins of western Central Africa have been hosting potentially damaging earthquake events for decades; yet, the links between seismicity, contemporary stress field, and pre-existing faults are not well understood. Here, we analyze regional fields offshore along coastal margin, in interior areas using focal mechanisms, map characterize detailed structure preexisting faul...

This study evaluates the in-situ stress field and the potential risk of fault reactivation and seal breach in the Mutineer and Exeter fields, Australian North West Shelf. Stress determinations are undertaken using pumping pressure test, rock mechanical, and log data from twelve wells. Subsequent geomechanical modelling uses the stress data to assess pore pressure changes that may induce slip on...

The Ms 8.0 Wenchuan earthquake occurred on 12 May 2008, in the Sichuan Province of China, and it was accompanied by a series strong aftershocks. mechanisms contributing to triggering aftershocks have attracted international attention. In this paper, based previous analysis spatiotemporal distribution regarding pore pressure diffusion deep fluid, we established three-dimensional hydraulic–mechan...

Generating an accurate model of the subsurface for purpose assessing feasibility a CO 2 storage site is crucial. In particular, how faults are interpreted likely to influence predicted capacity and integrity reservoir; whether this through identifying high-risk areas along fault, where fluid flow across or by reactivation potential fault with increased pressure, causing up fault. New technologi...

[1] An extensive deep-tow magnetic survey of the TAG ridge segment on the MidAtlantic Ridge reveals new information about the relationship between the magnetic anomaly field and the TAG hydrothermal deposits. Results show the strongest magnetization is located over the neovolcanic axis and asymmetrically toward the western side of the central Brunhes anomaly. A well-defined linear magnetization...

We have identified three groups of deep earthquakes showing nearly identical waveforms in the Tonga slab. Relocation with a cross-correlation method shows that each cluster is composed of 10 to 30 earthquakes along a plane 10 to 30 kilometers in length. Some of the earthquakes are colocated, demonstrating repeated rupture of the same fault, and one pair of events shows identical rupture complex...

13 The Great Glen Fault (GGF) trends NNE-SSW across northern Scotland. According to 14 previous studies, the GGF developed as a left-lateral strike slip fault during the Caledonian 15 Orogeny (Ordovician to Early Devonian). However, it then reactivated right-laterally in the 16 Tertiary. We discuss additional evidence for this later phase. At Eathie and Shandwick, minor 17 folds and faults in f...