Fabrizio Galadini

• Istituto Nazionale di Geofisica e Vulcanologia

The Mt. Morrone active normal Fault (MMF) and the related Sulmona intermountain basin constitute one of the most characteristic examples of the extensional tectonic landscape carving the central Apennines (Italy). Above the ⁓22 km MMF, thousands of inhabitants concentrate on a thriving reality and a historical and cultural heritage of great signifi...

Studies on active and capable faults produce data that presently have a key role in the broad field of earthquake geology, as well as in planning engineering works and land use. In regions with high deformation rates, the approach through paleoseismology could be sufficient to collect data necessary to depict active faults behavior. By contrast, a...

The occurrence of coseismic surface ruptures along fault traces in urbanised areas creates a serious hazard to the vulnerability of man-made manufactures. In order to mitigate such hazard, it is necessary to investigate the geometry, the activity and the capability of faults located close to urbanised areas. This paper presents a case study of the...

We investigated the Late Quaternary activity of a major, crustal fault affecting the southern sector of Central Apennines, i.e., the Roveto Valley Fault (also known as Liri Valley fault). This sector of the chain was hit by numerous M>5 historical seismic events. For some of these, e.g., the 1654 one (Mw 6.33), the causative seismogenic source has...

Methods of Earth Sciences have been employed in archaeological sites of the Marsica region, central Italy, in two different perspectives: to enhance knowledge on past natural events which damaged/destroyed ancient settlements/monuments and to gather data useful/necessary for preservation of the local cultural heritage. Within this wide perspective,...

Anthropogenic modifications of the landscape (e.g. urbanization, deforestation and agricultural activities) act as geomorphic processes, producing fast changes and instabilities, which often lead to landslides along hillslopes and floodings in low-lands. Anthropogenic modifications have increased with the progress of civilization; therefore, coupli...

The entanglement between active tectonics and karst systems is well-known in the literature. Karst systems are sound recorders of continental deformation in terms of brittle structures and seismic features and have been successfully used as markers for reconstructing tectonic stresses and assessing preferential directions of increased permeability...

Surface faulting is, together with strong ground shaking, a hazard associated with major earthquake faults. Assessing surface faulting potential of a given active tectonic structure is a fundamental prerequisite to adequately plan the use of territories and to perform new constructions, in order to act practices aimed to mitigate the associated ris...

The Fucino lacustrine basin in central Italy is a large flat area mostly devoted to agriculture, with urbanization along the perimeter of the ancient lake. In 1915 a strong earthquake struck the area (Mw 7.0), producing large damages and geological effects, including surface faulting, ground failures and liquefaction. A channel excavated in the lac...

The Quaternary Fucino basin in the central Apennines of Italy was struck by one of the strongest Italian earthquakes of the last millennium (1915, Mw 7.0). The Avezzano town, ~ 9.0 km away from the epicentre, was completely destroyed. In the surrounding area sizable coseismic surface deformation were catalogued, attesting the severity of earthquake...

We present a review of the geological knowledges on the seismogenic faults and fault systems that activated during the last three major seismic sequences in central Italy, since the Colfiorito seismic sequence of 1997. Information describing the Quaternary activity of the causative fault systems have been matched with the geological effects-in term...

We present a review of the geological knowledges on the seismogenic faults and fault systems that activated during the last three major seismic sequences in central Italy, since the Colfiorito seismic sequence of 1997. Information describing the Quaternary activity of the causative fault systems have been matched with the geological effects-in term...

The Central Italy earthquake sequence nominally began on 24 August 2016 with aM6.1 event on a normal fault that produced devastating effects in the town of Amatrice and several nearby villages and hamlets. A major international response was undertaken to record the effects of this disaster, including surface faulting, ground motions, landslides, an...

Questo studio analizza la suscettibilità a liquefazione di terreni a grana fina prodotta da fenomeni sismoindotti, nel bacino del Fucino. Esso era il terzo lago d’Italia per estensione fino alla seconda metà del XIX secolo, prima del suo prosciugamento per scopi agricoli. Il Fucino è anche l’area epicentrale del grande terremoto del 13 gennaio 1915...

The Central Italy earthquake sequence nominally began on 24 August 2016 with aM6.1 event on a normal fault that produced devastating effects in the town of Amatrice and several nearby villages and hamlets. A major international response was undertaken to record the effects of this disaster, including surface faulting, ground motions, landslides, an...

The three mainshock events (M6.1 24 August, M5.9 26 October, and M6.5 30 October 2016) in the Central Italy earthquake sequence produced surface ruptures on known segments of the Mt. Vettore-Mt. Bove normal fault system. As a result, teams from Italian national research institutions and universities, working collaboratively with the U.S. Geotechnic...

The Central Italy earthquake sequence produced three mainshocks: M6.1 24 August, M5.9 26 October, and M6.5 30 October 2016. Additional M5-5.5 events struck this territory on 18 January 2017 in the Campotosto area. Fault plane solutions for the mainshocks exhibit normal faulting (characteristic of crustal extension occurring in the inner central Ape...

The 2016–2017 seismic sequence, in central Italy, was caused by the Mt. Vettore-Mt. Bove active fault system, which generated three mainshocks, the largest one of Mw 6.6, on 30 October 2016. On 18 January 2017, four Mw 5–5.5 seismic events nucleated on the Campotosto active fault. The fault is considered as potentially responsible for M ~6.6 seismi...

We investigated the eastern corner of northeastern Italy, where a system of NW–SE-trending dextral strike-slip faults of western Slovenia intersects the south-verging fold and thrust belt of the eastern Southern Alps. The area suffered the largest earthquakes of the region, among which are the 1511 (Mw 6.3) event and the two major shocks of the 197...

The 2016-2017 seismic sequence, in central Italy, was caused by the Mt. Vettore-Mt. Bove active fault system, which generated three mainshocks, the largest one of MW 6.5, on 30 October 2016. On 18th January 2017, four MW 5-5.5 seismic events nucleated on the Campotosto active fault, i.e. the southern segment of the Laga Mts. fault system. The segme...

We investigated the eastern corner of northeastern Italy, where the NW-SE trending dextral strike-slip fault systems of western Slovenia intersects the south-verging fold and thrust belt of the eastern Southern Alps . The area suffered the largest earthquakes of the region, among which are the 1511 (Mw 6.3) event and the two major shocks of the 197...

The study of the Quaternary evolution of defined areas for the recognition and characterization of active and capable faults is essential for an adequate and aware land use planning and management. Here, we present two case studies in the Abruzzi Apenni-nes, one in the Celano area, where focused geological studies allowed us to rule out the presenc...

From August to October of 2016, central Italy experienced a devastating sequence of earthquakes that produced nearly complete destruction of several historic villages, some massive landslides, pronounced surface fault rupture on a normal fault system, extensive sets of ground motion recordings, and many other effects. GEER responded to this disaste...

An earthquake with a moment magnitude reported as 6.0 from INGV (Istituto Nazionale di Geofisica e Vulcanologia); occurred at 03:36 AM (local time) on 24 August 2016 in the central part of Italy. The epicenter was located at the borders of the Lazio, Abruzzi, Marche and Umbria regions, about 2.5 km northeast of the village of Accumoli and about 100...

Paleoseismological investigations have been carried out along the Mt. Marine normal fault, a probable source of the February 2, 1703 (Me=6.7) earthquake. The fault affects the area between the 2016 Amatrice and 2009 L'Aquila seismic sequences. Paleoseismological analysis provides data which corroborate previous studies, highlighting the occurrence...

The August 24, 2016 Amatrice earthquake (M l 6.0) struck a region of the central Apennines (Italy) where several active faults were known since decades, most of which are considered the surface expression of seismogenic sources potentially able to rupture during earthquakes with M of up to 6.5-7. The current debate on which structure/s activated du...

On 24th August 2016 a MW 6.0 earthquake occurred near Amatrice (central Italy) causing nearly 300 fatalities. The mainshock ruptured a NNW-SSE striking, WSW dipping normal fault. The earthquake produced several coseismic effects at ground, including landslides and ground ruptures. In particular, ground surveys identified a 5.2 km long continuous fr...

We present detailed geological investigations aimed at the reconstruction of the shallow subsurface geology, and associated local seismic hazard, of the Avezzano town in the Quaternary Fucino basin (central Apennines). This work shows a basic (Level 1) seismic microzonation (SM) of the Avezzano town, focusing the attention on geologic constraints....

We analyzed the liquefaction susceptibility of an area located in the northern side of the Fucino lacustrine basin in central Italy (Pozzone area). The Fucino was struck in 1915 by a M7.0 earthquake, which produced widespread coseismic surface effects interpreted as liquefaction-related. In the Pozzone area the interpretation of the described pheno...

This 2 days-long field trip aims at exploring field evidence of active tectonics, paleoseismology and Quaternary geology in the Fucino and L’Aquila intermountain basins and adjacent areas, within the inner sector of Central Apennines, characterized by extensional tectonics since at least 3 Ma. Each basin is the result of repeated strong earthquakes...

The first stage of the trial in L’Aquila (Italy) ended with a conviction of seven experts, convened by the head of Civil Protection on 31 March 2009, for multiple manslaughter and serious injuries. They were sentenced to six years in jail, perpetual interdiction from public office and a fine of several million euros to be paid to the victims of the...

The INQUA 6th International Workshop on Active Tectonics, Paleoseismology and Archaeoseismology, held in Pescina (L’Aquila, Italy) on April 19-24, 2015, pointed out the recent scientific outcomes derived from both classical and new methodological ap- proaches and techniques, and included a two-day field trip in the epicentral areas of the 1915 Fuci...

Le catastrofi hanno spesso un'incubazione molto lunga e più di un responsa-bile. Per queste ragioni non è possibile cogliere la complessità della vicenda giudiziaria conseguente al terremoto dell'Aquila se non si mettono da parte gli eccessi di semplificazione, i pregiudizi e la frettolosa ricerca di colpevoli. Questo volume si rivolge a chiunque a...

Local seismic hazard from detailed geologic investigations: the Avezzano town in the epicentral area of the M7, 1915 earthquake (Fucino basin, central Italy) Abstract: We present the results of a study on the local seismic hazard of the Avezzano town, located in the epicentral area of the large 1915 central Italy earthquake. The study consists of a...

We investigate the Middle Aterno Valley fault system (MAVF), unknown poorly investigated seismic gap in the central Apennines, adjacent to the 2009 L’Aquila earthquake epicentral area. Geological and paleoseismological analyses revealed that the MAVF evolved through hanging wall splay nucleation, its main segment moving at 0.23-0.34 mm/year since t...

Active and capable faults (FAC) represent one of the most important risk for human activities in seismically active areas. The scientific and civil communities are constantly increasing their attention about this matter. In the Italian context, the post seismic reconstruction after the 2009 April 6th L'Aquila earthquake clearly highlighted the need...

 

The paper presents the results of site effects investigation at two villages, Castelvecchio Subequo and Castel di Ieri (Central Italy), located about 2 km from each other, on top of carbonate ridges characterized by complex geological/structural characteristics. Both villages suffered of an anomalous high damage degree determined by the Mw=6.1, 200...

We investigated the recent evolution of the Po Plain–Alps system by integrating subsur-face geophysical data from the Po Plain with new stratigraphic and structural observations from the Southern Alps margin. Inversion of structural data and chronology provided by stratigraphic constraints led to the defi nition of three tectonic events since the P...

The transformation of Rome during the Late Antiquity and the Early Middle Ages has beeb investigated by archaeologists and historians. social and political changes are the main aspects which conditioned the progressive modification of the urban framework, abandonment, spoliation and transformation of buildings are quite diffused and documented by a...

The 2nd century AD earthquake in central Italy is only known by an epigraph that mentions restorations to a damaged weighing-house at the ancient locality of Pagus Interpromium. The available seismic catalogues report this event with the conventional date of 101 AD, a magnitude M aw of 6.3, and an epicentral location at the village of San Valentino...

In this paper we describe some of the issues related to the conviction of seven experts, who participated in various ways to a meeting six days before the April 6, 2009 L’Aquila earthquake. The meeting was convened at L’Aquila by the Head of the National Civil Protection and was then identified as the “Commissione Grandi Rischi” meeting. Here we fo...

Active faulting is one of the main factors that induce deep-seated gravitational slope deformations (DGSDs). In this study, we investigate the relationships between the tectonic activity of the NW–SE normal fault system along Mt. Morrone, central Apennines, Italy, and the evolution of the associated sackung-type DGSD. The fault system is considered...

The rich seismic history of Sulmona includes eleven earthquakes with Intensity Is 6 MCS. Considering the different earthquakes with effects beyond the damage threshold, the comparison between the intensities attributed to Sulmona with those of the closer localities indicates that in many cases the town has suffered more severe damage. This suggests...

In the opinion of the undersigned, AGU's position statement regarding the conviction of Italian seismologists, issued following the 22 October 2012 conviction of six Italian scientists and one government official related to the 2009 L'Aquila earthquake (see Eos, 93(44), 444, 10.1029/2012EO440013), is absolutely right and correct. We believe that Fr...

The first step of the trial in L'Aquila (Italy) ended with a conviction of a group of seven experts to 6 years of jail and several million euros refund for the families of the people who died during the Mw 6.3 earthquake on April 6, 2009. This verdict has a tremendous impact on the scientific community as well as on the way in which scientists deli...

In this paper we present the geological effects induced by the 2012 Emilia seismic sequence in the Po Plain. Extensive liquefaction phenomena were observed over an area of �1200 km2 following the 20 May, ML 5.9 and 29 May, ML 5.8 mainshocks; both occurred on about E–W trending, S dipping blind thrust faults. We collected the coseismic geological ev...

Paleoseismological investigations has been carried out along the causative fault of the Mw 6.1 2009 L'Aquila earthquake. We dug three trenches in two different sites on the Paganica fault to understand its Holocene kinematic behavior. Paleoseismological results show a minimum of three faulting events preceding the 2009 earthquake. The most recent r...

A number of earthquakes known from the historical sources have struck Rome during the 5-9th century AD, i.e. in 443, 484-508, 618, 801, 847. Recent archaeological excavations have permitted to focus the attention on two earthquakes among those above cited, i.e. the events of 484-508 and 847 AD. Through a geoarchaeological and stratigraphic definiti...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

We present a collection of pictures of the coseismic secondary geological effects produced on the environment by the 2012 Emilia seismic sequence in northern Italy. The May-June 2012 sequence struck a broad area located in the Po Plain region, causing 26 deaths and hundreds of injured, 15.000 homeless, severe damage of historical centres and indust...

Field surveys performed by different research groups after the April 6, 2009 L'Aquila earthquake (Mw 6.1; CHIARALUCE et alii, 2011) identified the occurrence of surface faulting along the Paganica normal fault, the causative seismogenic source of the event. The different researchers provided patterns of surface rupture that slightly differ as for t...

p>On May 20, 2012, a Ml 5.9 seismic event hit the Emilia Po Plain, triggering intense earthquake activity along a broad area of the Po Plain across the provinces of Modena, Ferrara, Rovigo and Mantova (Figure 1). Nine days later, on May 29, 2012, a Ml 5.8 event occurred roughly 10 km to the SW of the first main shock. These events caused widespread...

Regulations and advice from different institutions and associations indicate the necessity for preventive measures to avoid future damage to our cultural heritage. To do so, the appropriate knowledge of the various historic catastrophic events (natural or anthropic) that have struck the monuments has to be gained. This knowledge of our archaeologic...

The time span necessary to define a fault as ‘active and capable’ can mainly be derived from the framework of the regulations and the literature produced since the 1970s on risk estimation in engineering planning of strategic buildings. Within this framework, two different lines of thought can be determined, which have mainly developed in the USA....

Paleoseismological techniques have been applied to characterize the kinematic behaviour of large-scale gravitational phenomena located in proximity of the seismogenic fault responsible for the Mw 7.0, 1915 Avezzano earthquake and to identify evidence of a possible coseismic reactivation. The above mentioned techniques were applied to the surface ex...

Since the time of the town foundation, the Latin colony of Alba Fucens has experienced several human actions which strongly modified the landscape. The first interventions were made in order to build the part of the town presently represented by the southernmost sector of the archaeological area. The interventions have been demonstrated by means of...

We analyse the spatial distribution of the intensity data points surveyed after the Mw 6.3, 2009 L’Aquila (central Italy) earthquake, with the aim to recognize and quantify finite-fault and directivity effects. The study is based on the analysis of the residuals, evaluated with respect to attenuation-with-distance models, calibrated for L’Aquila ea...

A temporary network of 33 seismic stations was deployed in the area struck by the 6th April 2009, Mw 6.1 (Scognamiglio etal. in Seism Res Lett 6/81, 2010), L’Aquila earthquake (central Italy), with the aim to investigate the site amplification within the Aterno river Valley. The seismograms of 18 earthquakes recorded by 14 of the 33 stations were u...