Groundwater Monitoring in Regional Discharge Areas Selected as “Hydrosensitive” to Seismic Activity in Central Italy

2020 ◽  
pp. 21-25
Author(s):  
Marco Petitta ◽  
Domenico Marino Barberio ◽  
Maurizio Barbieri ◽  
Andrea Billi ◽  
Carlo Doglioni ◽  
...  
Keyword(s):  
Seismic Activity ◽  
Groundwater Monitoring ◽  
Central Italy

scholarly journals Basement Mapping of the Fucino Basin in Central Italy by ITRESC Modeling of Gravity Data

Geosciences ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 398
Author(s):  
Federico Cella ◽  
Rosa Nappi ◽  
Valeria Paoletti ◽  
Giovanni Florio
Keyword(s):  
Seismic Activity ◽  
Site Response ◽  
Gravity Data ◽  
A Priori ◽  
Central Italy ◽  
Gravity Anomalies ◽  
Gravity Modeling ◽  
Ground Shaking ◽  
Sedimentary Evolution ◽  
Fucino Basin

Sediments infilling in intermontane basins in areas with high seismic activity can strongly affect ground-shaking phenomena at the surface. Estimates of thickness and density distribution within these basin infills are crucial for ground motion amplification analysis, especially where demographic growth in human settlements has implied increasing seismic risk. We employed a 3D gravity modeling technique (ITerative RESCaling—ITRESC) to investigate the Fucino Basin (Apennines, central Italy), a half-graben basin in which intense seismic activity has recently occurred. For the first time in this region, a 3D model of the Meso-Cenozoic carbonate basement morphology was retrieved through the inversion of gravity data. Taking advantage of the ITRESC technique, (1) we were able to (1) perform an integration of geophysical and geological data constraints and (2) determine a density contrast function through a data-driven process. Thus, we avoided assuming a priori information. Finally, we provided a model that honored the gravity anomalies field by integrating many different kinds of depth constraints. Our results confirmed evidence from previous studies concerning the overall shape of the basin; however, we also highlighted several local discrepancies, such as: (a) the position of several fault lines, (b) the position of the main depocenter, and (c) the isopach map. We also pointed out the existence of a new, unknown fault, and of new features concerning known faults. All of these elements provided useful contributions to the study of the tectono-sedimentary evolution of the basin, as well as key information for assessing the local site-response effects, in terms of seismic hazards.

The fundamental role of environmental isotopes in the characterization of landfill impact on groundwater

2021 ◽  
Author(s):  
Elisabetta Preziosi ◽  
Eleonora Frollini ◽  
Daniele Parrone ◽  
Pasquale Manara ◽  
Stefano Ghergo
Keyword(s):  
Organic Compounds ◽  
Organic Contaminants ◽  
Groundwater Monitoring ◽  
Inorganic Compounds ◽  
Landfill Gas ◽  
Central Italy ◽  
Environmental Isotopes ◽  
Monitoring Network ◽  
Natural Conditions

<p>Modern urban landfills are useful instruments for the safe disposal of everyday waste, especially when associated to a correct separate waste collection and circular economy best practices. Nevertheless, environmental pollution in the surrounding of the disposal area is always a major threat. The leachate and gas produced during the waste maturation must be carefully collected and conveyed to appropriate treatments or uses e.g. for energy production, in order to avoid harmful pollutants from migrating to groundwater or other natural matrices.</p><p>Appropriate monitoring practices are required to intervene promptly at the first sign of inefficiency of the protective barriers or leachate and gas collection systems. As regards groundwater, the monitoring network must include at least 3 observation points. The parameters to be analyzed, required by the legislation, aim at detecting the passage of specific contaminants or indicators of pollution, including inorganic elements and organic contaminants.</p><p>Very often, reducing conditions are observed in the groundwater underlying landfills, which trigger the reductive dissolution of iron and manganese (hydro)oxides. Reasons for this include: natural conditions of the aquifer, leachate pollution, the interaction of groundwater with landfill gas migrating from the plant.</p><p>Groundwater monitoring campaigns have been conducted for several years for the characterization of landfill impact on groundwater in central Italy and several case studies have been analyzed. Natural background levels have been applied, when possible, to distinguish the presence in groundwater of metals due to natural conditions from exceedances related to anthropogenic impact. Traditional groundwater monitoring has been complemented with the analysis of environmental isotopes including tritium and 13-carbon . Tritium is an excellent tracer of landfill pollution because its concentration is particularly high in both leachate and landfill gas.</p><p>The aim of this communication is to present some successful examples of isotope application to resolve doubts about the origin of high levels of inorganic compounds in groundwater, as well as traces of organic compounds, which are of concern as a possible sign of failure of the protective barriers of the plant.</p><p>In particular, we compare the results of the monitoring activities at two landfills, one currently active and one that has been operating in the past and is now completely dismissed. Field parameters (T, EC, pH, DO, ORP) were measured with probes in a flow-through cell. Ammonia, nitrite, sulfur and cyanide were measured in the field (UV-VIS). Quality control includes blind samples, field blanks and equipment blanks. Lab analysis were performed for major and trace elements, environmental isotopes (δ<sup>18</sup>O, δ<sup>2</sup>H, Tritium, δ<sup>13</sup>C), DOC, VOC with standard procedures.</p><p>The hydrochemical, hydrogeological and isotope data indicate a slow and modest groundwater contamination that is taking place in the old plant. The traces of organic compounds observed there were ascribed to the leachate, which is still produced and collected, which possibly infiltrates the groundwater. In the active plant no indication of pollution was found and some anomalous data regarding sulfur and chloride were provisionally ascribed to a geogenic origin.</p>

scholarly journals Electromagnetic field measurements in ULF-ELF-VLF [0.001 Hz–100 KHz] bands

2008 ◽  
Vol 14 ◽  
pp. 69-73 ◽  
Author(s):  
P. Palangio ◽  
F. Masci ◽  
M. Di Persio ◽  
C. Di Lorenzo
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Fields ◽  
Frequency Band ◽  
Seismic Activity ◽  
Central Italy ◽  
Field Measurements ◽  
Wide Band ◽  
The Earth ◽  
Innovative Technique ◽  
Electromagnetic Signals

Abstract. We are reporting the technological and scientific objectives of the MEM project. The MEM project has been activated in the INGV Observatory of L'Aquila to create in Central Italy a network of observatories in order to monitoring the electromagnetic signals in the frequency band [0.001 Hz–100 kHz]. Some examples of the instrumentation developed in the frame of the project are reported. An innovative technique, based on the wide band interferometry is proposed to obtain detailed information concerning the several detected electromagnetic sources. Moreover, data from each station will be elaborated to investigate different sectors as the structure of ground electric conductibility, the electromagnetic phenomena connected with seismic activity, the separation of the electromagnetic fields originated in the Earth's interior and the electromagnetic phenomena originated in the magnetosphere, in the ionosphere and in the Earth-ionosphere cavity.

The role of INGVterremoti blog in information management during the earthquake sequence in Central Italy

2017 ◽  
Vol 59 ◽  
Author(s):  
Maurizio Pignone ◽  
Concetta Nostro ◽  
Alessandro Amato ◽  
Carlo Meletti
Keyword(s):  
Real Time ◽  
Information Management ◽  
Seismic Activity ◽  
Scientific Information ◽  
Central Italy ◽  
Historical Earthquakes ◽  
Earthquake Sequence ◽  
Source Models ◽  
Working Groups ◽  
Work Done

<p class="Normale1"><em>In this paper, we describe the role the INGVterremoti blog in information management during the first part of the earthquake sequence in central Italy (August 24 to September 30). In the last four years, we have been working on the INGVterremoti blog in order to provide quick updates on the ongoing seismic activity in Italy and in-depth scientific information. These include articles on specific historical earthquakes, seismic hazard, geological interpretations, source models from different type of data, effects at the surface, and so on.</em></p><p class="Normale1"><em>We have delivered information in quasi-real-time also about all the recent magnitude M≥4.0 earthquakes in Italy, the strongest events in the Mediterranean and in the world.</em></p><p class="Normale1"><em>During the 2016 central Italy, the INGVterremoti blog has continuously released information about seismic sequences with three types of posts: i) updates on the ongoing seismic activity; ii) reports on the activities carried out by the INGV teams in the field and any other working groups; iii) in-depth scientific articles describing some specific analysis and results.</em></p><p class="Normale1"><em>All the blog posts have been shared automatically and in real time on the other social media of the INGVterremoti platform, also to counter the bad information and to fight rumors. These include Facebook, Twitter and INGVterremoti App on IOS and Android. As well, both the main INGV home page (http://www.ingv.it) and the INGV earthquake portal (<span style="text-decoration: underline;">http://terremoti.ingv.it</span>) have published the contents of the blog on dedicated pages that were fed automatically. The work done day by day on the INGVterremoti blog has been coordinated with the INGV Press Office that has written several press releases based on the contents of the blog.</em></p><p class="Normale1"><em></em><em>Since August 24<sup>th</sup>, on the blog 53 articles were published on the blog  they have had more than 1.9 million views and 1 million visitors. The peak in the number of views, which was more than 800,000 in a single day, was registered on August 24, 2016, following the M 6.0 earthquake.</em></p>

scholarly journals Evolution of magnetotelluric, total magnetic field, and VLF field parameters in Central Italy: relations to local seismic activity

2009 ◽  
Vol 44 (2) ◽  
Author(s):  
A. Meloni ◽  
D. Di Mauro ◽  
G. Mele ◽  
P. Palangio ◽  
T. Ernst ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Seismic Activity ◽  
Central Italy ◽  
Total Magnetic Field

scholarly journals Signals in water - the deep originated CO2 in the Peschiera-Capone acqueduct in relation to monitoring of seismic activity in central Italy

2016 ◽  
Vol 5 (4) ◽  
Author(s):  
Claudio Martini
Keyword(s):  
Seismic Activity ◽  
Inorganic Carbon ◽  
Southern Italy ◽  
Dissolved Inorganic Carbon ◽  
Central Italy ◽  
Warning Signal ◽  
Central Apennines ◽  
Data Updating ◽  
Relationship Of ◽  
Crustal Magma

Valuation of the analysis performed on groundwater of Central Lazio by ACEA ATO2 SpA from 2001 to 2016, according to the model proposed by Chiodini et al. in 2004 that identifies in the Tyrrhenian coast of central and southern Italy, two notable releasing areas of the CO2 produced by the sub-crustal magma activity, or two areas of natural degassing of the planet: the TRDS area (Tuscan Roman degassing structure) and the CDS area (Campanian degassing structure). Reconstruction of the CO2 produced by degassing through the analysis of the components of inorganic carbon measured in groundwater of Central Lazio (Rome and Rieti districts) between 2001 and 2016. Causal relationship of the activity of mantle degassing in the TRDS area with the disastrous earthquake occurred at L’Aquila in April 6, 2009. Current use of the dissolved inorganic carbon measurement in the Peschiera and Capore spring waters to monitor the activity of mantle degassing in the TRDS area, in order to have an early warning signal of possible seismic activity in the Central Apennines. Revision and data updating after the earthquake in August 24, 2016 at Amatrice.

scholarly journals Magnetic and Electromagnetic signals related to tectonic activity: updates and new analyses on measurements in Central Italy

2005 ◽  
Vol 5 (6) ◽  
pp. 925-930
Author(s):  
D. Di Mauro ◽  
S. Lepidi ◽  
A. Meloni ◽  
P. Palangio
Keyword(s):  
Seismic Activity ◽  
Spatial Scales ◽  
Central Italy ◽  
Wide Band ◽  
Tectonic Activity ◽  
Electromagnetic Properties ◽  
National Network ◽  
Tectonic Events ◽  
Electromagnetic Signals

Abstract. Tectonomagnetic field observations from absolute magnetic field levels have been collected in Central Italy since 1989 by means of a network of four absolute magnetometer stations, including the geomagnetic observatory of L'Aquila (42°23 N, 13°19 E) used as reference for differentiation; also electromagnetic variations from VLF signals have been recorded in the last years by means of VLF search coil wide-band antennas. Many reports proved the occurrence of electromagnetic effects clearly related to tectonic events (seismic and volcanic activity) in active areas of our planet. In this paper we show the variation of some electromagnetic parameters which could be related to local and regional seismic activity for the most recent years 2002 and 2003. We also report the seismic activity recorded in this area by the Italian seismic national network. Some tentative analysis (in the wavelets and statistical approach) on the historical and recent dataset allow a better characterization of electromagnetic properties of the study area, at different temporal and spatial scales.

Hydrogeological monitoring to assess possible pre-seismic correlations of groundwater changes with seismic activity in central Italy

2016 ◽  
Vol 41 ◽  
pp. 338-341 ◽  
Author(s):  
Marino Domenico Barberio ◽  
Andrea Billi ◽  
Carlo Doglioni ◽  
Alessandro Lacchini ◽  
Valentina Marinelli ◽  
...  
Keyword(s):  
Seismic Activity ◽  
Central Italy

scholarly journals From high temporal resolution to synthetically enhanced radiometric resolution: insights from Night Thermal Gradient results

2021 ◽  
Vol 230 (1) ◽  
pp. 111-132 ◽  
Author(s):  
L. Piroddi
Keyword(s):  
Data Processing ◽  
Temporal Resolution ◽  
Seismic Activity ◽  
Thermal Gradient ◽  
Central Italy ◽  
Low Frequency ◽  
Thermal Infrared ◽  
High Temporal Resolution ◽  
Electromagnetic Emissions ◽  
Frequency Components

Abstract Electromagnetic emissions in thermal infrared bands are an important research topic on pre-earthquake studies. Satellite thermal data have been investigated by many independent research groups looking for their anomalous behaviour before main earthquake's occurrences. Among them, geosynchronous satellite data are reported as less prone to artefacts during data processing. In this work, the Night Thermal Gradient (NTG) algorithm is presented, which has been specifically proposed for geostationary thermal infrared data processing. NTG method relies on the exploitation of high temporal resolution data to find coherent low frequency components of a hypothetical precursory signal of seismic activity. In this paper, the method is presented by giving details about the applied procedures, steps, theoretical assumptions and results obtained during the studies of L'Aquila 2009 earthquake and the seismic activity of Central Italy and Sardinia.

scholarly journals The Emilia 2012 sequence: a macroseismic survey

2012 ◽  
Vol 55 (4) ◽  
Author(s):  
Andrea Tertulliani ◽  
Luca Arcoraci ◽  
Michele Berardi ◽  
Filippo Bernardini ◽  
Beatriz Brizuela ◽  
...  
Keyword(s):  
Local Time ◽  
Seismic Activity ◽  
Central Italy ◽  
Seismic Network ◽  
Rupture Zone ◽  
Seismic Sequence ◽  
Southern Germany ◽  
Po Valley ◽  
South Eastern ◽  
Macroseismic Survey

<p>On May 20, 2012, at 4:03 local time (2:03 UTC), a large part of the Po Valley between the cities of Ferrara, Modena and Mantova was struck by a damaging earthquake (Ml 5.9). The epicenter was located by the Istituto Nazionale di Geo-fisica e Vulcanologia (INGV) seismic network [ISIDe 2010] at 44.889 ˚N and 11.228 ˚E, approximately 30 km west of Ferrara (Figure 1). The event was preceded by a foreshock that occurred at 01:13 local time, with a magnitude of Ml 4. The mainshock started an intense seismic sequence that lasted for weeks, counting more than 2,000 events, six of which had Ml &gt;5. The strongest earthquakes of this sequence occurred on May 29, 2012, with Ml 5.8 and Ml 5.3, recorded at 9:00 and 12:55 local time, respectively. The epicenters of the May 29, 2012, events were located at the westernmost part of the rupture zone of the May 20, 2012, earthquake (Figure 2). The May 20 and 29, 2012, earthquakes were felt through the whole of northern and central Italy, and as far as Switzerland, Slovenia, Croatia, Austria, south-eastern France and southern Germany. Historical information reveals that the seismic activity in the Po Valley is moderate […]</p>

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