The constant increase of geodetic instrumentation over the past decades enables us to not only detect ever smaller tectonic signals but also monitor their evolution in time and space. We present spatial temporal slip variations observed on a fault affected by large, intermediate-field earthquake: 2015 Mw7.2 Sarez, Central Pamir, earthquake ruptured sinistral, NE-trending Sarez-Karakul system. 1...

On 24 January 2020, a devastating earthquake struck the town of Sivrice in Elazığ province at 20:55 local time (17:55 UTC), resulting 41 death and significant loss property. The magnitude was determined to be Mw 6.8 strong shaking main shock lasted about 20 seconds. triggered 30 landslides over an area ~55 km2. This article presents preliminary results comprehensive study on mapping distributio...

The characteristics of near-fault ground motion are investigated considering heterogeneous slip distribution on the fault plane. Areas on the fault plane with large slip in compare with the average slip on the fault are known as asperity. The characteristics of strong ground motions in near-fault area are strongly affected by faulting parameters such as asperity location, maximum slip of asperi...

For risk associated with storage of CO2 under the Earth's surface, the impervious cap is one of the most significant factors. Geological structures such as faults can provide conduits for CO2 to escape through the cap. When conductive faults intersect the storage formation and overlying permeable layers, CO2 leaks may exhibit three distinct behaviors: initial upward migration of fluids through ...

We describe the morphology of a large and complex graben structure in the western Thauma-sia region (the " Thaumasia graben " [1] or TG). We consider possible fault geometries, determine extension , and discuss shortly possible models for its origin. Background: Situated at the western border of the Thaumasia plateau, the TG is one of the most prominent fault-bounded structures on Mars. It is ~...

By using GPS-derived velocities of 2015–2021 and a negative dislocation program, we inverted the locking degree slip rate deficit in Qilian–Haiyuan fault zone, combined with distribution small earthquakes fault, studied characteristics before 2022 Menyuan M S 6.9 earthquake analyzed future seismic hazards each segment within this zone. The regional crustal deformation pattern is discussed regar...

limited seismic data quality and complex tectonics make for less than ideal interpretation conditions. however, modern geometric attributes including coherency has shown to be effective in showing the lateral extents of subtle and small-scale geologic features not usually visible in conventional seismic sections. this geometric attributes are better suited than some older generation seismic att...

I derive an unconditionally stable implicit finite-difference operator that corrects the constant-velocity phase shift operator for lateral velocity variations. My method is based on the Fourier-Finite Difference (FFD) method first proposed by Ristow and Ruhl (1994). Contrary to previous results, my correction operator is stable even when the reference velocity is higher than the medium velocit...