INGV launches the EMERSITO website, to offer information and insights on the effects of local amplification of seismic motion
The website of the Emergency Operations Group "EMERSITO" () of the National Institute of Geophysics and Volcanology (INGV) is online.
The objective of the new portal is to raise awareness of the Group's activities, making the public aware of the issue of seismic danger and highlighting, in particular, the effect that the type of surface soil produces on seismic motion. In fact, during the propagation of seismic waves from the source to the surface, and in particular when crossing more superficial terrain, these waves can undergo a transformation which often translates into an increase in the amplitude and duration of the shaking, but also in a variation of the frequency content of the signal.
EMERSITO is an Operational Group made up of INGV researchers, technologists and technicians from ten different locations (Bologna, Catania, Grottaminarda, L'Aquila, Milan, Naples, Palermo, Pisa, Rende and Rome). The Group intervenes in the event of earthquakes in Italy of significant magnitude (M >5) or in the event that a level of damage is observed that cannot be attributed solely to the energy of the seismic event.
During emergencies, EMERSITO carries out monitoring campaigns for local seismic response studies in order to evaluate the changes that the seismic motion recorded on the surface undergoes due to the geological, geotechnical and morphological properties of the site in question. The Operational Group also carries out preparatory activities for seismic microzonation, in which geophysical measurements are carried out for the characterization of surface soils and seismic networks are installed in the epicentral area to contribute to the definition of homogeneous areas in terms of seismic hazard.
The EMERSITO website, divided into various sections, provides information and insights on site effects and microzoning activities, also describing the seismic emergencies in which EMERSITO has taken part over the years: among these, L'Aquila (2009), Emilia-Romagna (2012), Central Italy (2016) and Ischia (2017).
In all these events, cases have been observed in which the geological and morphological structures have contributed to amplifying the seismic motion recorded on the surface, generating an increase in surface shaking which may have contributed, together with other no less important factors linked to the vulnerability of existing buildings and infrastructure, to the observed damage.
In addition to providing information on the emergency campaigns carried out, with the related reports and scientific publications, the site offers a multimedia section where it is possible to find informative photos and videos on the Group's work.
#ingv #emersite #earthquakes #seismic emergency
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EMERSITO, the new website about the effects of surface amplification of earthquakes is online
INGV launches the EMERSITO website, to offer information and insights on the effects of local amplification of seismic motion
The website of the "EMERSITO" Emergency Operational Group () of the National Institute of Geophysics and Volcanology (INGV) is online.
The goal of the new portal is to make the Group's activities known, sensitizing the public to the topic of the seismic hazard and highlighting the effect that the typology of surface soils produces on seismic motion. In fact, during the propagation of seismic waves from the source towards the surface, in particular when crossing the most superficial soils, these waves are often modified resulting in an increase of the ground shaking in terms of amplitude and duration , and also in a variation of the frequency content of the signal.
EMERSITO is an Operating Group made of researchers, technologists and technicians from the INGV of ten different locations (Bologna, Catania, Grottaminarda, L'Aquila, Milan, Naples, Palermo, Pisa, Rende and Rome). The Group intervenes when earthquakes of significant magnitude occur in Italy (M> 5), or when a level of damage that cannot be attributed to the energy of the seismic event alone is observed.
During emergencies, EMERSITO carries out monitoring campaigns for local seismic response studies, in order to evaluate the changes of the ground motion recorded at the surface due to the geological, geotechnical and morphological properties of the investigated site. The Operative Group also carries out preparatory activities for seismic micro-zoning, in which geophysical measurements are performed for the characterization of surface soils, and seismic networks are installed in the epicentral area for contributing to the definition of homogeneous areas in terms of seismic hazard.
The EMERSITO website, divided into different sections, provides insights on the effects of the site and on micro-zoning activities, describing the seismic emergencies in which EMERSITO has taken part over the years: among these, L'Aquila (2009), Emilia-Romagna Romagna (2012), Central Italy (2016) and Ischia (2017).
In all these events, cases were observed in which the geological and morphological structures contributed to amplifying the seismic motion recorded on the surface, generating an aggravation of the shaking on the surface that may have contributed, together with other important factors related to the vulnerability of the existing buildings, to the observed damage.
In addition to providing information on the emergency campaigns with the link to related reports and scientific publications, the site offers a multimedia section in which it is possible to find popular photos and videos on the Group's work.
#ingv #emerged #earthquakes #seismicemergency
Gallery – An EMERSITO expert at work together with the Fire Brigade in Amatrice after the 2016 earthquake
Picture – An EMERSITO expert working together with Fire Fighters in Amatrice after the 2016 earthquake