We have been trying to make a recipe for predicting ground motions from future large earthquakes. To do that the most important factors are the source characterizations for complex rupture processes and the Green’s function estimations for realistic geological structures. We attempt to formulate the source characterizations based on recent results of the waveform source inversion. There are two...

Among various indices of earthquake ground motions, the maximum amplitude value and frequency content have been regarded as the most important indices for earthquake engineering. These indices are strongly affected by local site conditions. Also the fact that the duration of earthquake ground motion differs from site to site even during the same earthquake has been noticed by many researchers. ...

A major left-lateral strike-slip Mw7.7 earthquake occurred in the vicinity of Caribbean Sea on January 28, 2020. As a result, small-scale tsunami was generated. The properties seismogenic source were described using observational data gathered for and tsunami, as well information regional tectonic setting. simulated with COMCOT model Okada’s dislocation from finite fault solutions MW7.7 earthqu...

OBJECTIVE To examine the effects of a huge tsunami resulting from the Great East Japan Earthquake on blood pressure (BP) control and glycaemic control in diabetic patients. DESIGN A retrospective study. SETTING Tohoku University, Japan. PARTICIPANTS 63 patients were visiting Rikuzentakata Hospital for diabetic treatment before the earthquake and returned to the clinic in July after the ea...

Historical masonry structures that connecting the past to present have great importance because they represent experiences and characteristics of various cultures. Therefore, protection historical is important. In this study, structural response Mosque was evaluated through dynamic analyses. For purpose, Sütlü Minaret which located in Malatya, Turkey, investigated. The three-dimensional model m...

[1] Vertical crustal motions at 15 sites along the northern Pacific-North America plate boundary are determined using relative sea level changes from tide gauge records. Our analysis is based on monthly mean sea levels, from which barometric pressure and seasonal effects are removed. The records are corrected for common-mode oceanographic variations. These records are statistically examined for...

A Ms 7.7 earthquake struck the western, equatorial coast of Sumatra in December 1935. It was the largest event in the region since the two devastating giant earthquakes of 1833 and 1861. Historical seismograms of this event from several observatories around the world provide precious information that constrains the source parameters of the earthquake. To more precisely quantify the location, ge...

Tsunamis are unpredictable events and catastrophic in their potential for destruction of human lives economy. The unpredictability occurrence poses a challenge to the tsunami community, as it is difficult obtain from tsunamigenic records estimates recurrence rates severity. Accurate efficient mathematical/computational modeling thus called upon provide forecasts hazard assessments. Compounding ...

The tsunami information, i.e. the sea level elevation, presents useful features that can be used for different case studies. It can be derived from observations, e.g. tide gages records or anomaly of sea level obtained with altimeters, but also through numerical modeling of the tsunami propagation. Once a robust numerical simulation is performed, the wave sequence, compared to available hydrody...

Damage status of RC buildings is greatly influenced by the characteristics of the imposed ground motion. Peak Ground Acceleration and frequency contents are considered the main two factors that affect ground motion characteristics; hence, affecting the seismic response of RC structures and consequently their damage state. A detailed investigation on the combined effects of these two factors on ...