Published in Frontiers in Earth Science
The Parkfield transitional segment of the San Andreas Fault (SAF) is characterized by the production of frequent quasi-periodical M6 events that break the very same asperity. The last Parkfield mainshock occurred on 28 September 2004, 38 years after the 1966 earthquake, and after the segment showed a ∼22 years average recurrence time. The main reas...
Transkurentni stik Preloma svetega Andreja na območju Kalifornije predstavlja potresno najbolj aktivno območje Združenih držav Amerike, kjer živi več kot 39 milijonov prebivalcev. Tektonska aktivnost litosferskih plošč je na območju prisotna že več kot 28 milijonov let, kar posledično predstavlja veliko potresno ogroženost tamkajšnjim prebivalcem, ...
We investigate the fine-scale geometry and structure of the San Andreas Fault near Parkfield, CA, and their role in the development of the 1966 and 2004 similar to M6 earthquakes. Long-term surface fault traces indicate that structural heterogeneities associated with secondary reverse and normal fault structures are present at both rupture tips, ne...
Published in Izvestiya, Physics of the Solid Earth
The results of Global Navigational Satellite System (GNSS) observations in the regions of large earthquakes are analyzed. The characteristics of the Earth’s surface deformations before, during, and after the earthquakes are considered. The obtained results demonstrate the presence of anomalous deformations close to the epicenters of the events. Sta...
Measuring fault offsets preserved at the ground surface is of primary importance to recover earthquake and long‐term slip distributions and understand fault mechanics. The recent explosion of high‐resolution topographic data, such as Lidar and photogrammetric digital elevation models, offers an unprecedented opportunity to measure dense collections...
While vertical motion induced by long-term geological loads is often used to estimate the flexural rigidity of the lithosphere, we intend to evaluate the shear rigidity of the lithosphere using horizontal motion. Our approach considers that the rigidity of the lithosphere may be defined as its resistance to horizontal tectonic lateral forces. In th...
Published in Geophysical research letters
Due to the limited resolution at depth of geodetic and other geophysical data, the geometry and the loading rate of the ramp-décollement faults below the metropolitan Los Angeles are poorly understood. Here we complement these data by assuming conservation of motion across the Big Bend of the San Andreas Fault. Using a Bayesian approach, we constra...
Educação Superior::Ciências Exatas e da Terra::Geociências / Educação Superior::Ciências Exatas e da Terra::Oceanografia / The March 11, 2011 tsunami that devastated Japan was able to reach more than 4,500 miles across the Pacific basin and bring destruction to Crescent City, California. This image of the projected tsunami wave heights shows a band...
In crustal fault zones, regions of damaged rock characterized by reduced elastic shear modulus can influence patterns of near-field interseismic deformation. In order to study these compliant fault zones (CFZs) and how they might develop over the lifetimes of faults, we compare two fault segments with contrasting fault age and lithology along the S...
Published in International Journal of Earth Sciences
The paleoseismic research aims to document earth activity during earthquakes, such as displacements of fault, rupture location, distribution of slip or ground shaking intensity. The earthquakes are usually distributed on the plate boundaries causing big damages of life on the Earth. Four faults in North America, New Zealand and Europe with differen...
