scholarly journals The August 24th 2016 Accumoli earthquake: surface faulting and Deep-Seated Gravitational Slope Deformation (DSGSD) in the Monte Vettore area

2016 ◽  
Vol 59 ◽  
Author(s):  
Domenico Aringoli ◽  
Piero Farabollini ◽  
Marco Giacopetti ◽  
Marco Materazzi ◽  
Silvia Paggi ◽  
...  
Keyword(s):  
Environmental Effects ◽  
Active Fault ◽  
Central Italy ◽  
Slope Deformation ◽  
Geological Survey ◽  
Western Slope ◽  
Secondary Effects ◽  
The Village ◽  
Earthquake Environmental Effects

<p>On August 24th 2016 a Mw=6.0 earthquake hit central Italy, with the epicenter located at the boundaries between Lazio, Marche, Abruzzi and Umbria regions, near the village of Accumoli (Rieti, Lazio). Immediately after the mainshock, this geological survey has been focused on the earthquake environmental effects related to the tectonic reactivation of the previously mapped active fault (i.e. primary), as well as secondary effects mostly related to the seismic shaking (e.g. landslides and fracturing in soil and rock).This paper brings data on superficial effects and some preliminary considerations about the interaction and possible relationship between surface faulting and the occurrence of Deep-Seated Gravitational Slope Deformation (DSGSD) along the southern and western slope of Monte Vettore.</p>

scholarly journals Deformation pattern of the 6 and 7 April 2009, <i>M</i><sub>W</sub>=6.3 and <i>M</i><sub>W</sub>=5.6 earthquakes in L'Aquila (Central Italy) revealed by ground and space based observations

2010 ◽  
Vol 10 (1) ◽  
pp. 73-87 ◽  
Author(s):  
I. D. Papanikolaou ◽  
M. Foumelis ◽  
I. Parcharidis ◽  
E. L. Lekkas ◽  
I. G. Fountoulis
Keyword(s):  
Environmental Effects ◽  
Central Italy ◽  
Deformation Pattern ◽  
Fault Surface ◽  
The Past ◽  
Order Of Magnitude ◽  
Surface Ruptures ◽  
Maximum Subsidence ◽  
Fault Trace ◽  
Earthquake Environmental Effects

Abstract. The deformation pattern of the 6 and 7 April 2009 MW=6.3 and MW=5.6 earthquakes in L'Aquila is revealed by DInSAR analysis and compared with earthquake environmental effects. The DInSAR predicted fault surface ruptures coincide with localities where surface ruptures have been observed in the field, confirming that the ruptures observed near Paganica village are indeed primary. These ruptures are almost one order of magnitude lower than the ruptures that have been produced by other major surrounding faults in the past. These faults have not been activated during the 2009 event, but have the capacity to generate significantly stronger events. DInSAR analysis shows that 66% (or 305 km2) of the area deformed has been subsided whereas the remaining 34% (or 155 km2) has been uplifted. A footwall uplift versus hangingwall subsidence ratio of about 1/3 is extracted from the mainshock. The maximum subsidence (25 cm) was recorded about 4.5 km away from the primary surface ruptures and about 9 km away from the epicentre. In the immediate hangingwall, subsidence did not exceeded 15 cm, showing that the maximum subsidence is not recorded near the ruptured fault trace, but closer to the hangingwall centre. The deformation pattern is asymmetrical expanding significantly towards the southeast. A part of this asymmetry can be attributed to the contribution of the 7 April event in the deformation field.

scholarly journals Preliminary paleoearthquake investigations of active faults on Awaji Island, Japan,
 in relation to the 1995 Great Hanshin (Kobe) earthquake

1996 ◽  
Vol 29 (3) ◽  
pp. 172-177
Author(s):  
R. Van Dissen ◽  
J. Begg ◽  
Y. Awata
Keyword(s):  
New Zealand ◽  
Active Fault ◽  
Active Faults ◽  
Geological Survey ◽  
Historical Records ◽  
Surface Rupture ◽  
Kobe Earthquake ◽  
Nojima Fault ◽  
One Year ◽  
Hanshin Earthquake

Approximately one year after the Great Hanshin (Kobe) Earthquake, two New Zealand geologists were invited to help with the Geological Survey of Japan's paleoearthquake/active fault studies in the Kobe/Awaji area. Trenches excavated across the Nojima fault, which ruptured during the Great Hanshin Earthquake, showed evidence of past surface rupture earthquakes, with the age of the penultimate earthquake estimated at approximately 2000 years. A trench across the Higashiura fault, located 3-4 km southeast of the Nojima fault, revealed at least two past surface rupture earthquakes. The timing of the older earthquakes is not yet known, but pottery fragments found in the trench constrain the timing of the most recent earthquake at less than 500-600 years. Historical records for this part of Japan suggest that within the last 700 years there has been only one regionally felt earthquake prior to the 1995 Great Hanshin Earthquake, and this was the AD 1596 Keicho Earthquake. It thus seems reasonable to suggest that the Higashiura fault was, at least in part, the source of the AD 1596 Keicho Earthquake.

Active Fault Systems in the inner North West Apennines: an updated view

2021 ◽  
Author(s):  
Giancarlo Molli ◽  
Rick Bennett ◽  
Jacques Malavieille ◽  
Enrico Serpelloni ◽  
Fabrizio Storti ◽  
...  
Keyword(s):  
Active Fault ◽  
Central Italy ◽  
Structural Features ◽  
Structural Studies ◽  
Data Set ◽  
Structural Domains ◽  
North West ◽  
Fault Systems ◽  
Internal Fault ◽  
Fault Characterization

&lt;p&gt;As part of an ongoing project of mapping, structural studies and fault characterization we present an updated tectonic scheme and data set for the active fault systems that shaped the inner portion of the Apennines north of the Arno river. Geomorphology, stratigraphy of Plio-Quaternary sediments, GPS data, historical and instrumental seismicity have been reviewed and combined with structural studies to define the neotectonic history of the investigated region. Within the studied area, first-order physiographic and structural features allow to define different structural domains related to a set of ranges with a dominant NW-SE direction separated by intramontane or continental/marine morphotectonic depressions of the Lunigiana, Garfagnana, Lucca-Mt.Albano, La Spezia-Carrara and the off-shore Viareggio basin. The main boundary faults and internal fault segments of the different structural domains were described while the Plio-Quaternary sedimentary records has been used to constrain their long to short term deformation and rates, with the aim to improve current Italian catalogues - DISS (INGV) and Ithaca (ISPRA) - with some utilities for the seismic microzonation local projects. Moreover, our work aims to draw the attention of the scientific community to the seismotectonics of a region in which the seismic hazard is largely considered medium to low despite the occurrence, one century ago, of one of the most destructive earthquakes that have struck the Italian peninsula, the 1920 Fivizzano EQ, with an estimated Mw 6.5 similar to the main shock of the 2016 Central Italy seismic sequence.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;

scholarly journals New Perspectives in the Definition/Evaluation of Seismic Hazard through Analysis of the Environmental Effects Induced by Earthquakes

Geosciences ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 58 ◽  
Author(s):  
Sabina Porfido ◽  
Giuliana Alessio ◽  
Germana Gaudiosi ◽  
Rosa Nappi
Keyword(s):  
Seismic Hazard ◽  
Environmental Effects ◽  
State Of The Art ◽  
Seismic Intensity ◽  
Seismic Hazards ◽  
Special Issue ◽  
Strong Earthquakes ◽  
Innovative Methods ◽  
Esi Scale ◽  
Earthquake Environmental Effects

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 through Analysis of the Environmental Effects Induced by Earthquakes” presents a collection of scientific contributions that provide a sample of the state-of-the-art in this field. Moreover the collected papers also analyze new data produced with multi-disciplinary and innovative methods essential for development of new seismic hazard models.

scholarly journals Sequential Earthquake Damage Assessment Incorporating Optimized sUAV Remote Sensing at Pescara del Tronto

Geosciences ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 332 ◽  
Author(s):  
Michael Freeman ◽  
Cory Vernon ◽  
Bryce Berrett ◽  
Nicole Hastings ◽  
Jeff Derricott ◽  
...  
Keyword(s):  
3D Reconstruction ◽  
Central Italy ◽  
Time Lapse ◽  
Small Towns ◽  
Significant Damage ◽  
Planning Algorithm ◽  
Data Capturing ◽  
The Village ◽  
Large Earthquakes ◽  
Imagery Data

A sequence of large earthquakes in central Italy ranging in moment magnitudes (Mw) from 4.2 to 6.5 caused significant damage to many small towns in the area. After each earthquake in 2016 (24 August and 26 October), automated small unmanned aerial vehicles (sUAV) acquired valuable imagery data for post-hazard reconnaissance in the mountain village of Pescara del Tronto, and were applied to 3D reconstruction using Structure-from-Motion (SfM). In July 2018, the site was again monitored to obtain additional imagery data capturing changes since the last visit following the 30 October 2016 Earthquake. A genetic-based mission-planning algorithm that delivers optimal viewpoints and path planning was field tested and reduced the required photos for 3D reconstruction by 9.1%. The optimized 3D model provides a better understanding of the current conditions of the village, when compared to the nadir models, by containing fewer holes on angled surfaces, including an additional 17% surface area, and with a comparable ground-sampling distance (GSD) of ≈2.4 cm/px (≈1.5 cm/px when adjusted for camera pixel density). The resulting three time-lapse models provide valuable metrics for ground motion, progression of damage, resilience of the village, and the recovery progress over a span of two years.

VIII.—The Priory of St. Leonard of Stanley, Co. Gloucester, in the light of recent discoveries documentary and structural

Archaeologia ◽  
1921 ◽  
Vol 71 ◽  
pp. 199-226 ◽  
Author(s):  
C. Swynnerton
Keyword(s):  
Western Slope ◽  
Parish Church ◽  
The Village

Stanley, Co. Glos., is a village on the western slope of a spur of the Cotswolds one and a half miles north of Stonehouse. The village and parish are commonly called Leonard Stanley or Stanley St. Leonards to distinguish them from the next parish of King's Stanley as well as from the Wiltshire Stanley where there was also a conventual house. Occasionally it appears as Stanley Monachorum. But generally it was simply Stanley, and Stanley without qualification is the name which local lips often assign to it even at the present day.Stanley St. Leonards can boast of two most interesting churches. The older church, now degraded to farm-yard purposes, was the ancient preconquest rectory church, but it is small, a chapel in fact, and therefore, following medieval usage, we shall distinguish it from the greater monastic and present parish church by naming it as the chapel of St. Leonard.

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