Shake maps and comparison with recordings
Figure 1. The map below (Figure 2) shows the median values of PGA predicted with the Bindi et al. (2011) ground-motion prediction equation for soil type C for the horizontal component, plotted on top of the recorded values of PGA at the recording stations of the National Strong Motion Network (RAN) and the […]
Map of the ground deformation
A part of the studied area shows that a deformation up to 15 centimetres occurred. The map below (Figure 1) shows the distribution of ground deformation; more information is available here: Terremoto in Emilia Romagna: il sollevamento dell’area è arrivato a 15 centimetri (in Italian). Figure 1.
Preliminary Report on the 2012, May 20th, Emilia Earthquake
This report presents the results of a preliminary survey in the area affected by the May 20, 2012 Emilia, Northern Italy, earthquake. In this report, a reconstruction of the local seismic catalogues is presented, the damage to historical buildings, rural buildings, industrial buildings and reinforced-concrete buildings surveyed on May 21-22 is described, and a short […]
Damage Scenarios – Mainshock, 20th May
Contents of this preliminary scenario are related to WebGIS systems to evaluate the seismic risk of residential buildings, schools and road system. To determine shakemaps, Akkar-Bommer (2010) attenuation relationship, recently available in literature, has been adopted, since it is recognized to suitably reproduce acceleration spectra obtained by italian ground motion records. More detailed information can be […]
Damage Scenarios – Aftershocks, 29th May
The dicentra location has been recorded at 44.851, 11.086, near to Medolla, at 10.2 Km depth. An update of the damage scenarios for the residential buildings has been carried out. More detailed information can be found here: Real time damage scenario.
Shake maps of the 29th May aftershock
The map below (Figure 1) shows the interpolation of peak ground acceleration – horizontal components (PGA_h) – recorded by the stations of RAN network during the May 29th event of Ml 5.8 (last accessed 30/05/2012). Figure 1. The map below (Figure 2) shows the interpolation of peak ground acceleration – vertical components (PGA_v) – recorded by the stations of the RAN […]
The Emilia thrust earthquake of 20 May 2012 (Northern, Italy): strong motions and geological observation
May 2012, National Civil Protection Department, Geosis-Lab Unichieti, University of Trieste, Regione Umbria- Regional Civil Protection On 20 May 2012, at 02:03:53 (UTC), Northern Italy was struck by an earthquake of’magnitude M 5.9 (lat 44.890 long 11.230). The mainshock was preceded by a M 4.1 event on 19 May and followed by four relevant aftershocks between […]
Data Analysis of RAN network records – May 20th event
For each of the three components – South-North (SN, blue), Est-West (EW, black) and vertical (UP, red) – data analysis present time histories (left) and relative acceleration response spectrum (Sa), velocity response spectrum (Sv) and displacement response spectrum (Sd). For each considered station, a comparison between acceleration, velocity and displacement response spectra is presented, according […]
International Tsunami Information Center Information
Event Page: http://itic.ioc-unesco.org/index.php?option=com_content&view=category&layout=blog&id=2129&Itemid=2558
Earth Pressure & Slope Failure on Route A16
Traffic disruption due to displaced slopes and rock movements. Traffic on route A16 between the cities of Iquique and Alto Hospicio was interrupted as a result of several slopes displacements and rock falls. This route is of strategic importance for regional economy, and following the earthquake, an 80 m long section descended 40 cm displacing […]