Introduction Earthquakes are one of the natural hazards that have caused many casualties and financial losses around the world. This is why earthquake risk analysis studies need to be conducted more seriously. Iran is located in one of the seismogenic regions of the world, the Himalayan-Alpine belt, which is subject to many earthquakes every year. The Arias intensity, as one of the important s...

A probabilistic seismic hazard assessment in terms of Arias intensity is presented for the city of Tehran. Tehran is the capital and the most populated city of Iran. From economical, political and social points of view, Tehran is the most significant city of Iran. Many destructive earthquakes happened in Iran in the last centuries. Historical references indicate that the old city of Rey and the...

Arias intensity is an essential ground motion measure correlating with the potential for earthquake-induced landslides. The Sichuan–Yunnan region, which primarily mountainous, a high incidence region of landslides in China. However, there no available attenuation relationship this due to backward construction stations. In study, we developed region-specific using China Strong-Motion Networks Ce...

In general, isolators and dampers used in seismically isolated buildings are designed to be isotropic any horizontal direction. However, the case of with plan irregularities, their nonlinear responses depend on direction seismic loading. To discuss influence angle incidence (ASI) response irregular building structures, it is important define critical axis ground motion. One possible choice “pri...

Sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of Iran and most probably the second largest copper mine in the world. This mine is located in the seismotectonic zone of Central-Iran, and 23 Km away from the 150 Km long Rafsanjan active fault.In this study the vulnerability of the west wall of the...

TO THE EDITOR— We thank Nannini and Arias for their interest in our article [1]. They raise several important issues in assessing the impact of emergency department occult Staphylococcus aureus bacteremia on patient outcomes [2]. Although 30-day mortality is a commonly used study endpoint in most bacteremia outcome researches, we agree that a 30-day follow-up period might be inadequate for pati...