Giuliana Alessio

• Istituto Nazionale di Geofisica e Vulcanologia

The study of the hypocenter distribution of seismic events related to fault structures is a crucial topic since it is linked to the geological features and to the dynamics of an investigated area. The hypocenter spatial distribution of earthquakes is used in a novel algorithmic method to clusterize earthquakes to accurately identify the strike and...

The study of the hypocenters distribution of seismic events related to fault structures is a crucial topic since it is linked to the geological features and to the dynamics of the investigated area. The hypocenter spatial distribution of earthquakes is used in a novel algorithmic method to clusterize earthquakes to accurately identify the strike an...

More than forty years after the 23 November 1980 earthquake, which devastated the Campania and Basilicata regions, causing the destruction of a large number of towns and the death of around three thousand people, we have tried, through a large survey, to understand how and to what extent the urban fabric and the most affected communities have been...

Preface to ”The November 23rd, 1980 Irpinia-Lucania, Southern Italy Earthquake: Insights and Reviews 40 Years Later” A little less than two months after 23 November 1980. While on 15 and 16 January 1981, the “Antonio Gramsci” Institute gathered together intellectuals from every sector in Avellino to define “Politics and culture for the reconstructi...

Il 21 agosto 2017 alle 20:57 (ora locale) un terremoto con ipocentro molto superficiale (h=1,2 km), di magnitudo moderata (Md=4,0), ha colpito l'isola vulcanica di Ischia (Lat. N40.74, Long.E13.90), provocando significativi effetti sull’ambiente naturale, ingenti danni a Casamicciola Terme e Lacco Ameno, e la morte di due persone. La valutazione de...

We conducted new UAV Lidar mapping, geomorphic, stratigraphic, and structural analyses along the 2 km long, E-trending, Casamicciola Terme Holocene graben, which follow the base of the 800 m high Mt Epomeo range front, in the N part of the Ischia Island, and is regarded as the source of the local damaging seismicity. We used UAV Lidar DEM at 10 cm...

The study’s aim is constraining the source characteristics of the Casamicciola Terme active andcapable fault system at Ischia Island for providing a contribution to the local seismic hazard.Ischia is an active volcanic island on the NW side of the Gulf of Naples and belongs to theCampanian volcanic province. On August 21 st 2017 a Md 4.0, 1,5 km de...

This reprint "The November 23rd, 1980 Irpinia-Lucania, Southern Italy Earthquake: Insights and Reviews 40 Years Later” presents a collection of 13 scientific contributions proposed by 44 researchers with different expertise and multidisciplinary approach highlighting the most important aspects of the Irpinia-Lucania earthquake (Ms 6.9, Io X MCS) fr...

On 21 August 2017, a shallow earthquake of Md 4.0 struck the Casamicciola Terme village in the north of Ischia volcanic island (Italy). It caused two fatalities and heavy damage in a restricted area of a few square kilometers. The damaging earthquakes at Ischia Island are no exception. The earthquakes repeat with similar characteristics over the hi...

Supplementary material As supplementary material we propose a publication, in which there is the first preliminary attribution of macroseismic intensity for the 1980 earthquake: “Il terremoto del 23-11-1980. Rilievo Macrosismico Stato di Avanzamento al 27-1-1981” [29] and some topographic maps of the effects induced by the 1980 Irpinia�Lucania eart...

After more than forty years since the 1980 Irpinia-Lucania earthquake, with this Special Issue “The 23 November 1980 Irpinia-Lucania, Southern Italy Earthquake: Insights and Reviews 40 Years Later” we revisit this milestone geological and seismological event, bringing together the latest views and news on this earthquake, with the aim of improving...

Le Ghost Towns di Aquilonia, Melito Irpino, Conza della Campania e Romagnano al Monte tra dissesti idrogeologici e terremoti. Nell’Appennino meridionale l’abbandono di alcuni centri abitati è direttamente riconducibile da un lato, al ripetersi di eventi sismici distruttivi con I> IX MCS, avvenuti negli ultimi secoli, e dall’altro, alla presenza di...

Ischia is a densely inhabited and touristic volcanic island located in the northern sector of the Gulf of Naples (Italy). In 2017, the Mw 3.9 Casamicciola earthquake occurred after more than one century of seismic quiescence characterized only by minor seismicity, which followed a century with three destructive earthquakes (in 1828, 1881, and 1883)...

The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/feart.2021. 629736/full#supplementary-material https://data.ingv.it/dataset/501#additional-metadata

On 21 August 2017 at 20:57 (local time) a very shallow (H = 1.2 km), moderate (Md = 4.0), earthquake hit the volcanic island of Ischia (Southern Italy), causing the death of two people. The study of the damage to the buildings with the European Macroseismic Scale 98 (EMS-98), carried out immediately after the earthquake, highlighted that hilly area...

This paper aims to present, through a photographic reportage, the current state of rebuilding of the most devastated villages by the earthquake that hit the Southern Italy on 23 November 1980, in Irpinia-Basilicata. The earthquake was characterized by magnitude Ml = 6.9 and epicentral intensity I0 = X MCS. It was felt throughout Italy with the epic...

The city of Naples (Campanian region, Southern Italy) has been hit by the strongest earthquakes located inside the seismogenic areas of the Southern Apennines, as well as by the volcano-tectonic earthquakes of the surrounding areas of the Campi Flegrei, Ischia and Vesuvius volcanic districts. An analysis of the available seismic catalogues shows th...

Special Issue "The November 23rd, 1980 Irpinia-Lucania, Southern Italy Earthquake: Insights and Reviews 40 Years Later"https://www.mdpi.com/journal/geosciences/special_issues

The application of the Environmental Seismic Intensity (ESI) scale 2007 to moderate and strong earthquakes, in different geological context all over the word, highlights the importance of Earthquake Environmental Effects (EEEs) for the assessment of seismic hazards. This Special Issue “New Perspectives in the Definition/Evaluation of Seismic Hazard...

On 21 August 2017, a shallow earthquake of Md 4.0 struck the Casamicciola Terme village in the north of Ischia volcanic island (Italy). The earthquake has the typical characteristics of volcanotectonic events recorded at active volcanoes and occurred along the EW normal system fault bounding the northern slope of Mt. Epomeo. The epicentral area has...

A modern approach to the assessment of seismic hazard cannot disregard the study of effects induced by earthquakes in the natural environment. The knowledge and mapping of seismic-induced effects represent the basis for providing a more reliable and realistic scenario in territorial planning. In recent years this has been dramatically demonstrated...

The Ischia island is located on the northwest side of the Gulf of Naples. In historical times it was characterized by strong seismic events and tsunami correlated to mass instability related to the volcano-tectonic dynamics of the island itself. In particular the Casamicciola Terme village, in the northern area of the island, was heavily hit by str...

The Ischia island is located on the northwest side of the Gulf of Naples. In historical times it was characterized by strong seismic events and tsunami correlated to mass instability related to the volcano-tectonic dynamics of the island itself. In particular the Casamicciola Terme village, in the northern area of the island, was heavily hit by str...

The aim of this paper is the presentation of the results obtained from the high precision leveling survey carried out from November 6 to 11, 2017, in the area hit by the Md 4.0 Casamicciola earthquake of August 21, 2017, and critical discussion of these results in the light of the possible seismic source models. The measurements have been carried o...

CONVEGNO SIGEA: LA BASILICATA COME LABORATORIO PER STUDI E RICERCHE SUL RISCHIO SISMICO- potenza 7 DICEMBRE 2018. http://www.sigeaweb.it/2012-07-23-20-04-01/convegni/861-la-basilicata-come-laboratorio-per-studi-e-ricerche-su-rischio-sismico.html

In this article, we show why the geological model of the 21 August 2017 earthquake proposed by Nappi et al. (2018) has less uncertainty than the source model proposed by De Novellis et al.(2018). As a matter of fact, the Nappi et al. (2018) model takes into account all geophysical and geological information collected soon after the earthquake. On t...

La notte europea dei ricercatori presso la Società Napoletana di Storia Patria- NAPOLI MASCHIO ANGIOINO. INGV-Osservatorio Vesuviano-Storia Patria- CNR IAMC Napoli. ore 17-17,45 - Terremoti: memoria e prevenzione. presso la Biblioteca della Società Napoletana di Storia Patria: percorso guidato e illustrazione di testi su tre terremoti importanti d...

On August 21, 2017 at 20:57, an earthquake with Md 4.0 (Lat. 40.74°, Long 13.90°, hypocentral depth at about 1.2 km) hit the Ischia island. The main shock heavily damaged the hilly sector of Casamicciola Terme village, reaching a maximum intensity of VIII in MCS/EMS scale, and causing two fatalities. Widespread damages also occurred in the Fango di...

On 21 August 2017, a shallow earthquake of Md 4.0 struck the Casamicciola Terme village in the north of Ischia volcanic island (Italy). It caused two fatalities and heavy damage in a restricted area of a few square kilometers. Casamicciola Terme has been recurrently destroyed in the last centuries by similar volcano‐tectonic earthquakes (1762, 1767...

The surface faulting produced by the 21 August 2017 Mw 4.0, Ischia island (Southern Italy) earthquake Rosa Nappi (1), Giuliana Alessio (1), Germana Gaudiosi (1), Rosella Nave (1), Enrica Marotta (1), Valeria Siniscalchi (1), Riccardo Civico (1), Luca Pizzimenti (1), Rosario Peluso (1), Pasquale Belviso (1), Sabina Porfido (2), and Emergeo Working G...

We provide a database of the coseismic geological surface effects following the Mw 6.5 Norcia earthquake that hit central Italy on 30 October 2016. This was one of the strongest seismic events to occur in Europe in the past thirty years, causing complex surface ruptures over an area of >400 km2. The database originated from the collaboration of sev...

We present a 1:25,000 scale map of the coseismic surface ruptures following the 30 October 2016 M w 6.5 Norcia normal-faulting earthquake, central Italy. Detailed rupture mapping is based on almost 11,000 oblique photographs taken from helicopter flights, that has been verified and integrated with field data (>7000 measurements). Thanks to the comm...

I volumi contengono i risultati di un confronto tra studiosi ed esperti di discipline umanistiche e scientifiche sul tema della baia di Napoli. Strategie integrate per la conservazione e la fruizione del paesaggio culturale. Della baia di Napoli, la cui immagine è celebrata in tutto il mondo attraverso innumerevoli vedute, fotografie, dipinti, fino...

Il terremoto del 23 novembre 1980, più comunemente noto come il terremoto dell’Irpinia-Basilicata, è stato il più forte evento sismico che ha colpito l’Italia, ed in particolare l’Appenino meridionale, negli ultimi 100 anni, caratterizzato da una Mw=6,9 ed una Io=X MCS (Postpischl et al., 1985). ISBN 978-88-941232-8-9 Fu avvertito in quasi tutta la...

La città di Napoli è soggetta agli effetti non solo dei terremoti di origine vulcano-tettonica delle aree immediatamente circostanti, quali i Campi Flegrei e Vesuvio, con intensità almeno fino al VI grado della scala MCS, ma è soggetta soprattutto ai terremoti di origine appenninica, i cui effetti possono raggiungere intensità decisamente più eleva...

This paper follows a previous issue of Miscellanea INGV [Emergeo Working Group, 2017] dedicated to the seisms-geological effects produced by the 24 August 2016 Amatrice earthquake. In this work, we present a collection of pictures showing the geological effects produced on either the natural or the built environment by the late October 2016 Visso a...

This paper follows a previous issue of Miscellanea INGV [Emergeo Working Group, 2017] dedicated to the seisms-geological effects produced by the 24 August 2016 Amatrice earthquake. In this work, we present a collection of pictures showing the geological effects produced on either the natural or the built environment by the late October 2016 Visso a...

On August 21, 2017 at 20:57 (local time) an earthquake with Md = 4.0 (Lat. 40.74°, Long 13.90°, hypocentre's depth at about 2 km) hit the Ischia island heavily damaging the Casamicciola village and causing two fatalities (Azzaro et al., 2017). The island of Ischia (Southern Italy) is the emerged portion of a volcanic complex belonging to Campi Fleg...

Il 21 agosto 2017 alle 20:57 (ora locale) un terremoto con Md = 4,0 (lat. 40,74°, long. 13,90°, profondità ipocentrale a circa 2 km) ha colpito l'isola di Ischia causando ingenti danni e due morti a Casamicciola (Azzaro et al., 2017). L'isola di Ischia (Italia meridionale) è la porzione emersa di un esteso apparato vulcanico situato a nord-ovest de...

The ‘Gran Cono’ tour in the National Park of Vesuvius (Campania, Italy), is, presented here, a scientific event conceived with the aim of testing how field-based communication activities in protected and active volcanic areas could be important in order to draw attention of people towards the geological value of volcanic sites, and also to raise aw...

The aim of this study is to describe the modifications of the built environment that have occurred in 36 years following the Irpinia-Basilicata, 1980 earthquake. In particular, especially in the villages of the epicentral area, changes in the urban and territorial setting have been examined, as well as the consequences of ground effects that have i...

The aim of this study was to provide a contribution to seismic hazard assessment of the Salento Peninsula (Apulia, southern Italy). It is well known that this area was struck by the February 20, 1743, earthquake (I0 = IX and Mw = 7.1), the strongest seismic event of Salento, that caused the most severe damage in the towns of Nardò (Lecce) and Franc...

On 24 August 2016, a Mw 6.0 normal-faulting earthquake struck central Italy, causing about 300 fatalities and heavy damage. A geological survey collected the coseismic effects observed at the surface in order to evaluate two competing hypotheses about their nature: surface faulting versus gravitational deformation. We find that the most significant...

The city of Naples has been hit both by volcano-tectonic earthquakes of the surrounding areas, such as the Campi Flegrei and Vesuvius districts, and also by the strongest seismic events located inside the seismogenic areas of the Southern Apennines. Based on the intensity and frequency of the past earthquakes , currently the city of Naples is class...

Since the beginning of the ongoing Amatrice seismic sequence on August 24, 2016, initiated by a Mw 6.0 normal faulting earthquake, the EMERGEO Working Group (an INGV team devoted to earthquake aftermath geological survey) investigated coseismic effects on the natural environment. Up to now, we surveyed about 750 km2 and collected more than 3200 geo...

As participant of the 29th Edition of the cultural initiative "Futuro Remoto 2015", the INGV section of Naples Osservatorio Vesuviano has realized a temporary exhibition aimed to build bridges between the scientific community and the public. The event, a festival of art, culture, science and technology, has taken place on October 15th-19th 2015, in...

The Apulia (Southern Italy) has been hit by several low energy and a few high energy earthquakes from 17th to 19th century. The aim of this study is a critical revision of the historical and recent seismicity of the Apulian region and surrounding seismogenetic areas, for re-evaluating the macroseismic effects in MCS scale and ground effects in natu...

The aim of this study is a critical revision of historical and recent seismicity of the Salento peninsula (Apulia, Southern Italy), offering an updated evaluation of its seismic hazard currently underestimated. This area is actually included in the least dangerous IV category of the Italian seismic classification. The Salento Peninsula was struck b...

The dissemination of correct information about seismic hazard is an ethical duty of scientific community worldwide. A proper assessment of a earthquake severity and impact should not ignore the evaluation of its intensity, taking into account both the effects on humans, man-made structures, as well as on the natural evironment. We illustrate the ne...

This paper deals with an interdisciplinary research that has been carried out for more constraining the active faults and their geometry of Abruzzo-Molise areas (Central-Southern Apennines), two of the most active areas from a geodynamic point of view of the Italian Apennines, characterized by the occurrence of intense and widely spread seismic act...

This paper presents a preliminary susceptibility map of the flood hazard for the Somma-Vesuvius volcanic district, worked out by means of multi-disciplinary historical, geological, geomorphological and rainfall data processing. It is well known that the Somma-Vesuvius volcano, due to its explosive volcanism and the dense urbanization of the surroun...

L’area del Salento (Puglia meridionale) è considerata l’avampaese stabile della catena appenninica (Cinque et al., 1993). La sismicità strumentale registrata dagli anni Settanta ad oggi è scarsa e di bassa energia, prevalentemente concentrata a ovest della penisola salentina e nel canale d’Otranto, dove il massimo evento registrato è stato quello d...

Itinerari geologico-naturalistici nelle aree vulcaniche campane: un'opportunità per conoscere e valorizzare un paesaggio naturale e culturale unico. INTRODUZIONE Questo lavoro propone quattro percorsi geoturistici a tema nello straordinario mondo dei paesaggi vulcanici campani, lungo la costa del Tirreno, per scoprire la notevole geodiversità e bio...