Convertito V., Iervolino I., Calcaterra D., De Luca Tupputi F., Santo A., Di Crescenzo G., Festa ... more Convertito V., Iervolino I., Calcaterra D., De Luca Tupputi F., Santo A., Di Crescenzo G., Festa G., Zollo A., Silvestri F., D'Onofrio A., Simonelli A., Manfredi G., Verderame G., Ricci P., James V., Penna A., Sica S., Monaco P., Totani G.
The island of Hispaniola, shared by the Dominican Republic and Haiti, is located in a subduction ... more The island of Hispaniola, shared by the Dominican Republic and Haiti, is located in a subduction zone between the North America plate and the Caribbean plate. In addition, there are 13 geological faults in the interior of the island, some of which have shown the potential to generate earthquakes of magnitude 7.5 and higher. Thus, the whole island is considered to be a high seismic risk region. In the past 100 years, several earthquakes have affected both parts of the island. In the case of the Dominican Republic, two earthquakes stand out: a magnitude 8.1 earthquake on August 4, 1946, north of the Samaná Province, which caused a tsunami, soil liquefaction, and the loss of about 100 lives, and a magnitude 6.5 earthquake on September 22, 2003, in the city of Puerto Plata, which caused significant damage for infrastructures. Among the observed effects, the partial and total collapse of several school buildings had a remarkable impact on local communities. In addition to the high seismi...
An earthquake with a moment magnitude reported as 6 .0 from INGV (Istituto Nazionale di Geofisica... more An earthquake with a moment magnitude reported as 6 .0 from INGV (Istituto Nazionale di Geofisica e Vul canologia); occurred at 03:36 AM (local time) on 24 August 2016 in the central part of Italy. The epicenter was lo cated at the borders of the Lazio, Abruzzi, Marche and Umbria regions, abou t 2.5 km north-east of the village of Accumoli and about 100 km from Rome. The hypocentral depth was about 8 km (INGV). We summarize preliminary findings of the Italy-US G EER (Geotechnical Extreme Events Reconnaissance) team, on damage distribution, causative faults, earthquak e-induced landslides and rockfalls, building and bridge performance, and ground motion characterization. Our reconnaissance team used multidisciplinary approaches, combining expertise in geo logy, seismology, geomatics, geotechnical engineeri g, and structural engineering. Our approach was to combine traditiona l reconnaissance activities of on-ground recording a d mapping of field conditions, with advanced imaging and ...
The paper is a comprehensive collection of up-to-date case studies of seismic response of histori... more The paper is a comprehensive collection of up-to-date case studies of seismic response of historical towns, located in dominant positions and affected by either ancient or recent strong-motion earthquakes. The centers of Benevento, Orvieto, Nicastro, Gerace, San Giuliano di Puglia have been characterised in terms of seismic hazard, subsoil model, ground motion simulation for maximum historical earthquakes. The results of 1D and 2D simulations point out the specific influence and the interplay of different factors, in particular the seismic input motion, the bedrock geometry, the soil layering and the surface topography.
The L’Aquila earthquake (Mw 6.3) occurred on April 6, 2009, was the first case , in Italy, of a w... more The L’Aquila earthquake (Mw 6.3) occurred on April 6, 2009, was the first case , in Italy, of a wellrecorded seismic event in a near-source region, wit h a dense population of engineering structures. Bot h the variability of the strong motion recorded by th e accelerometric stations, and the macroseismic intensity distribution showed that site amplificati on significantly affected even the near-fault seism ic actions across the Aterno river valley. This paper investigates the role of near-source site effects o n both free-field seismic response and structural damage, using seismic records, geotechnical data and numeri cal simulations. The influence of stratigraphic and morphological si te effects was preliminarily evaluated through a 2D site response analysis along a transversal section of the upper Aterno valley, where a linear array of seismic stations recorded the main shock. The acceleration time histories at a reference stat ion (AQG), properly scaled to account for the topogra...
Convertito V., Iervolino I., Calcaterra D., De Luca Tupputi F., Santo A., Di Crescenzo G., Festa ... more Convertito V., Iervolino I., Calcaterra D., De Luca Tupputi F., Santo A., Di Crescenzo G., Festa G., Zollo A., Silvestri F., D'Onofrio A., Simonelli A., Manfredi G., Verderame G., Ricci P., James V., Penna A., Sica S., Monaco P., Totani G.
The island of Hispaniola, shared by the Dominican Republic and Haiti, is located in a subduction ... more The island of Hispaniola, shared by the Dominican Republic and Haiti, is located in a subduction zone between the North America plate and the Caribbean plate. In addition, there are 13 geological faults in the interior of the island, some of which have shown the potential to generate earthquakes of magnitude 7.5 and higher. Thus, the whole island is considered to be a high seismic risk region. In the past 100 years, several earthquakes have affected both parts of the island. In the case of the Dominican Republic, two earthquakes stand out: a magnitude 8.1 earthquake on August 4, 1946, north of the Samaná Province, which caused a tsunami, soil liquefaction, and the loss of about 100 lives, and a magnitude 6.5 earthquake on September 22, 2003, in the city of Puerto Plata, which caused significant damage for infrastructures. Among the observed effects, the partial and total collapse of several school buildings had a remarkable impact on local communities. In addition to the high seismi...
An earthquake with a moment magnitude reported as 6 .0 from INGV (Istituto Nazionale di Geofisica... more An earthquake with a moment magnitude reported as 6 .0 from INGV (Istituto Nazionale di Geofisica e Vul canologia); occurred at 03:36 AM (local time) on 24 August 2016 in the central part of Italy. The epicenter was lo cated at the borders of the Lazio, Abruzzi, Marche and Umbria regions, abou t 2.5 km north-east of the village of Accumoli and about 100 km from Rome. The hypocentral depth was about 8 km (INGV). We summarize preliminary findings of the Italy-US G EER (Geotechnical Extreme Events Reconnaissance) team, on damage distribution, causative faults, earthquak e-induced landslides and rockfalls, building and bridge performance, and ground motion characterization. Our reconnaissance team used multidisciplinary approaches, combining expertise in geo logy, seismology, geomatics, geotechnical engineeri g, and structural engineering. Our approach was to combine traditiona l reconnaissance activities of on-ground recording a d mapping of field conditions, with advanced imaging and ...
The paper is a comprehensive collection of up-to-date case studies of seismic response of histori... more The paper is a comprehensive collection of up-to-date case studies of seismic response of historical towns, located in dominant positions and affected by either ancient or recent strong-motion earthquakes. The centers of Benevento, Orvieto, Nicastro, Gerace, San Giuliano di Puglia have been characterised in terms of seismic hazard, subsoil model, ground motion simulation for maximum historical earthquakes. The results of 1D and 2D simulations point out the specific influence and the interplay of different factors, in particular the seismic input motion, the bedrock geometry, the soil layering and the surface topography.
The L’Aquila earthquake (Mw 6.3) occurred on April 6, 2009, was the first case , in Italy, of a w... more The L’Aquila earthquake (Mw 6.3) occurred on April 6, 2009, was the first case , in Italy, of a wellrecorded seismic event in a near-source region, wit h a dense population of engineering structures. Bot h the variability of the strong motion recorded by th e accelerometric stations, and the macroseismic intensity distribution showed that site amplificati on significantly affected even the near-fault seism ic actions across the Aterno river valley. This paper investigates the role of near-source site effects o n both free-field seismic response and structural damage, using seismic records, geotechnical data and numeri cal simulations. The influence of stratigraphic and morphological si te effects was preliminarily evaluated through a 2D site response analysis along a transversal section of the upper Aterno valley, where a linear array of seismic stations recorded the main shock. The acceleration time histories at a reference stat ion (AQG), properly scaled to account for the topogra...
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Papers by Augusto Penna