scholarly journals Seismic damage to ancient monuments in Chiang Saen (Northern Thailand): implication for historical earthquakes in Golden Triangle area

2019 ◽  
Vol 377 (2155) ◽  
pp. 20180255 ◽  
Author(s):  
Teraphan Ornthammarath
Keyword(s):  
Eighteenth Century ◽  
Large Scale ◽  
Seismic Vulnerability ◽  
Active Faults ◽  
Lao Pdr ◽  
Historical Earthquakes ◽  
Geological Evidence ◽  
Ground Shaking ◽  
Golden Triangle ◽  
Ancient Monuments

Over the last few decades, three moderate earthquakes (Mw greater than 6.0) occurred in and around the Golden Triangle area (including Myanmar, Thailand and Lao PDR) causing unprecedented damage and loss of lives in the epicentral region. In addition to the damage to modern structures, most heritage structures in Chiang Saen, a major city of the Lan Na kingdom (from the thirteenth to the eighteenth century), were also affected. This work is intended to present observed historical structure damage from recent earthquakes, which could provide evidence for the severity of historical earthquakes from the thirteenth to the eighteenth century. Based on historical records, geological evidence and observed damage to ancient monuments in this historic town, existing heritage stupas and temples constructed since the fourteenth century sustained only minor to moderate damage from these historical earthquakes. Considering the seismic vulnerability of these historical monuments, Chiang Saen might have never been subjected to severe ground shaking greater than MMI intensity VII, similar to the major earthquake in 460 A.D. along the Mae Chan fault, which was responsible for the large-scale liquefaction and inundation of ancient Yonok town. This information could be important for paleoseismological and historical earthquake research to constrain the recurrence interval of major active faults in this area. This article is part of the theme issue ‘Environmental loading of heritage structures’.

The Age of Autonomy

2018 ◽  
Author(s):  
Stefan Winter
Keyword(s):  
Eighteenth Century ◽  
Paradigm Shift ◽  
Large Scale ◽  
Social Disparities ◽  
Local Autonomy ◽  
Economic Context ◽  
Southern Turkey ◽  
Leadership Structure ◽  
Landed Gentry ◽  
Tribal Leadership

This chapter follows the rise to power of the Shamsins, the Bayt al-Shillif, and associated ʻAlawi families as Ottoman tax concessionaries. It shows that their position of local autonomy, rather than having evolved out of some domestic or “tribal” leadership structure, resulted from a paradigm shift in Ottoman provincial administration as well as from a very favorable economic context, in particular the development of commercial tobacco farming in the northern highlands around Latakia. If the eighteenth century witnessed the emergence of a veritable Ottoman–ʻAlawi landed gentry, it also saw increasing social disparities lead to large-scale emigration away from the highlands toward the coastal and inland plains as well as toward the Hatay district of what is today southern Turkey.

First grammar books in the Habsburg Monarchy: individual initiative and regulatory interference by the state (1760s–1770s)

2020 ◽  
Vol 2019 (2 (11)) ◽  
pp. 137-157
Author(s):  
Olga V. Khavanova ◽  
Keyword(s):  
Eighteenth Century ◽  
State Policy ◽  
Large Scale ◽  
Language Use ◽  
Linguistic Diversity ◽  
Mother Tongue ◽  
German Language ◽  
Habsburg Monarchy ◽  
Private Initiative ◽  
The One

The second half of the eighteenth century in the lands under the sceptre of the House of Austria was a period of development of a language policy addressing the ethno-linguistic diversity of the monarchy’s subjects. On the one hand, the sphere of use of the German language was becoming wider, embracing more and more segments of administration, education, and culture. On the other hand, the authorities were perfectly aware of the fact that communication in the languages and vernaculars of the nationalities living in the Austrian Monarchy was one of the principal instruments of spreading decrees and announcements from the central and local authorities to the less-educated strata of the population. Consequently, a large-scale reform of primary education was launched, aimed at making the whole population literate, regardless of social status, nationality (mother tongue), or confession. In parallel with the centrally coordinated state policy of education and language-use, subjects-both language experts and amateur polyglots-joined the process of writing grammar books, which were intended to ease communication between the different nationalities of the Habsburg lands. This article considers some examples of such editions with primary attention given to the correlation between private initiative and governmental policies, mechanisms of verifying the textbooks to be published, their content, and their potential readers. This paper demonstrates that for grammar-book authors, it was very important to be integrated into the patronage networks at the court and in administrative bodies and stresses that the Vienna court controlled the process of selection and financing of grammar books to be published depending on their quality and ability to satisfy the aims and goals of state policy.

Ephemera

2020 ◽  
pp. 168-188
Author(s):  
Catherine Massip
Keyword(s):  
Nineteenth Century ◽  
Eighteenth Century ◽  
Large Scale ◽  
Short Life ◽  
Musical Life ◽  
Major Medium

Among the documents which give access to musical life and its various events, ephemera occupy a special field. The word (ephemeron singular; ephemera plural) covers several kinds of written or printed documents largely scattered but being produced for a short life and not subject to be handled and stored in a permanent way. “Those papers of the day” as defined in eighteenth century were produced on a large scale in the nineteenth century when newspapers became the major medium for publicity. The main purpose of these documents was primarily information and publicity. This chapter argues how ephemera may be read not as mere sidelines to culture but as central documents pertaining to the wide and complex intellectual issues in music.

scholarly journals Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

Geosciences ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 408 ◽  
Author(s):  
King ◽  
Quigley ◽  
Clark
Keyword(s):  
Observational Data ◽  
Environmental Effects ◽  
Active Faults ◽  
Magnetic Data ◽  
Future Research ◽  
Surface Rupture ◽  
Secondary Fracture ◽  
Geological Evidence ◽  
Surface Ruptures ◽  
Strong Control

We digitize surface rupture maps and compile observational data from 67 publications on ten of eleven historical, surface-rupturing earthquakes in Australia in order to analyze the prevailing characteristics of surface ruptures and other environmental effects in this crystalline basement-dominated intraplate environment. The studied earthquakes occurred between 1968 and 2018, and range in moment magnitude (Mw) from 4.7 to 6.6. All earthquakes involved co-seismic reverse faulting (with varying amounts of strike-slip) on single or multiple (1–6) discrete faults of ≥ 1 km length that are distinguished by orientation and kinematic criteria. Nine of ten earthquakes have surface-rupturing fault orientations that align with prevailing linear anomalies in geophysical (gravity and magnetic) data and bedrock structure (foliations and/or quartz veins and/or intrusive boundaries and/or pre-existing faults), indicating strong control of inherited crustal structure on contemporary faulting. Rupture kinematics are consistent with horizontal shortening driven by regional trajectories of horizontal compressive stress. The lack of precision in seismological data prohibits the assessment of whether surface ruptures project to hypocentral locations via contiguous, planar principal slip zones or whether rupture segmentation occurs between seismogenic depths and the surface. Rupture centroids of 1–4 km in depth indicate predominantly shallow seismic moment release. No studied earthquakes have unambiguous geological evidence for preceding surface-rupturing earthquakes on the same faults and five earthquakes contain evidence of absence of preceding ruptures since the late Pleistocene, collectively highlighting the challenge of using mapped active faults to predict future seismic hazards. Estimated maximum fault slip rates are 0.2–9.1 m Myr-1 with at least one order of uncertainty. New estimates for rupture length, fault dip, and coseismic net slip can be used to improve future iterations of earthquake magnitude—source size—displacement scaling equations. Observed environmental effects include primary surface rupture, secondary fracture/cracks, fissures, rock falls, ground-water anomalies, vegetation damage, sand-blows / liquefaction, displaced rock fragments, and holes from collapsible soil failure, at maximum estimated epicentral distances ranging from 0 to ~250 km. ESI-07 intensity-scale estimates range by ± 3 classes in each earthquake, depending on the effect considered. Comparing Mw-ESI relationships across geologically diverse environments is a fruitful avenue for future research.

Sex in the City that Peter Built: The Demimonde and Sociability in Mid-Eighteenth Century St. Petersburg

Slavic Review ◽  
2017 ◽  
Vol 76 (4) ◽  
pp. 907-930
Author(s):  
Igor Fedyukin
Keyword(s):  
Eighteenth Century ◽  
Public Sphere ◽  
Large Scale ◽  
Historical Context ◽  
Reading Public ◽  
Associational Life ◽  
The Public ◽  
The World ◽  
The Public Sphere ◽  
The City

This article uses the materials of the Drezdensha affair, a large-scale investigation of “indecency” in St. Petersburg in 1750, to explore unofficial sociability among the Imperial elite, and to map out the institutional, social, and economic dimensions of the post-Petrine “sexual underworld.” Sociability and, ultimately, the public sphere in eighteenth century Russia are usually associated with loftier practices, with joining the ranks of the reading public, reflecting on the public good, and generally, becoming more civil and polite. Yet, it is the privately-run, commercially-oriented, and sexually-charged “parties” at the focus of this article that arguably served as a “training ground” for developing the habits of sociability. The world of these “parties” provides a missing link between the debauchery and carousing of Peter I's era and the more polite formats of associational life in the late eighteenth century, as well as the historical context for reflections on morality, sexual licentiousness, foppery, and the excesses of “westernization.”

Physical and Numerical Simulations of the Seismic Response of a 1,100 kV Power Transformer Bushing

2018 ◽  
Vol 34 (3) ◽  
pp. 1515-1541 ◽  
Author(s):  
Guo-Liang Ma ◽  
Qiang Xie ◽  
Andrew S. Whittaker
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Numerical Simulations ◽  
Seismic Vulnerability ◽  
Power Transformer ◽  
Element Model ◽  
Ground Shaking ◽  
Earthquake Simulator ◽  
Physical Experiments ◽  
Seismic Tests

Power transformers and bushings are key pieces of substation equipment and are vulnerable to the effects of earthquake shaking. The seismic performance of a 1,100 kV bushing, used in an ultra-high voltage (UHV) power transformer, is studied using a combination of physical and numerical experiments. The physical experiments utilized an earthquake simulator and included system identification and seismic tests. Modal frequencies and shapes are derived from white noise tests. Acceleration, strain, and displacement responses are obtained from the uniaxial horizontal seismic tests. A finite element model of the 1,100 kV bushing is developed and analyzed, and predicted and measured results are compared. There is reasonably good agreement between predicted and measured responses, enabling the finite element model to be used with confidence for seismic vulnerability studies of transformer-bushing systems. A coupling of the experimental and numerical simulations enabled the vertically installed UHV bushing to be seismically qualified for three-component ground shaking with a horizontal zero-period acceleration of 0.53 g.

scholarly journals Active Fault Systems in the Inner Northwest Apennines, Italy: A Reappraisal One Century after the 1920 Mw ~6.5 Fivizzano Earthquake

Geosciences ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 139
Author(s):  
Giancarlo Molli ◽  
Isabelle Manighetti ◽  
Rick Bennett ◽  
Jacques Malavieille ◽  
Enrico Serpelloni ◽  
...  
Keyword(s):  
Large Scale ◽  
Active Fault ◽  
Active Faults ◽  
Dense Network ◽  
Earthquake Fault ◽  
Slip Rates ◽  
Fault Systems ◽  
Seismological Data ◽  
Seismogenic Faults

Based on the review of the available stratigraphic, tectonic, morphological, geodetic, and seismological data, along with new structural observations, we present a reappraisal of the potential seismogenic faults and fault systems in the inner northwest Apennines, Italy, which was the site, one century ago, of the devastating Mw ~6.5, 1920 Fivizzano earthquake. Our updated fault catalog provides the fault locations, as well as the description of their architecture, large-scale segmentation, cumulative displacements, evidence for recent to present activity, and long-term slip rates. Our work documents that a dense network of active faults, and thus potential earthquake fault sources, exists in the region. We discuss the seismogenic potential of these faults, and propose a general tectonic scenario that might account for their development.

High-frequency ground-motion variability for rough-fault ruptures  

2021 ◽  
Author(s):  
Jagdish Chandra Vyas ◽  
Martin Galis ◽  
Paul Martin Mai
Keyword(s):  
Ground Motion ◽  
Large Scale ◽  
Earthquake Ground Motion ◽  
Small Scale ◽  
Dynamic Rupture ◽  
Roughness Effects ◽  
Ground Shaking ◽  
Fault Surface ◽  
Fault Roughness ◽  
Ground Motion Variability

<p>Geological observations show variations in fault-surface topography not only at large scale (segmentation) but also at small scale (roughness). These geometrical complexities strongly affect the stress distribution and frictional strength of the fault, and therefore control the earthquake rupture process and resulting ground-shaking. Previous studies examined fault-segmentation effects on ground-shaking, but our understanding of fault-roughness effects on seismic wavefield radiation and earthquake ground-motion is still limited.  </p><p>In this study we examine the effects of fault roughness on ground-shaking variability as a function of distance based on 3D dynamic rupture simulations. We consider linear slip-weakening friction, variations of fault-roughness parametrizations, and alternative nucleation positions (unilateral and bilateral ruptures). We use generalized finite difference method to compute synthetic waveforms (max. resolved frequency 5.75 Hz) at numerous surface sites  to carry out statistical analysis.  </p><p>Our simulations reveal that ground-motion variability from unilateral ruptures is almost independent of  distance from the fault, with comparable or higher values than estimates from ground-motion prediction equations (e.g., Boore and Atkinson, 2008; Campbell and Bozornia, 2008). However, ground-motion variability from bilateral ruptures decreases with increasing distance, in contrast to previous studies (e.g., Imtiaz et. al., 2015) who observe an increasing trend with distance. Ground-shaking variability from unilateral ruptures is higher than for bilateral ruptures, a feature due to intricate seismic radiation patterns related to fault roughness and hypocenter location. Moreover, ground-shaking variability for rougher faults is lower than for smoother faults. As fault roughness increases the difference in ground-shaking variabilities between unilateral and bilateral ruptures increases. In summary, our simulations help develop a fundamental understanding of ground-motion variability at high frequencies (~ 6 Hz) due small-scale geometrical fault-surface variations.</p>

TWO HUNTERS, A MILKMAID AND THE FRENCH ‘REVOLUTIONARY’ CANON

2018 ◽  
Vol 15 (2) ◽  
pp. 177-205 ◽  
Author(s):  
JULIA DOE
Keyword(s):  
Eighteenth Century ◽  
Large Scale ◽  
Stage I ◽  
Performance History ◽  
Late Eighteenth Century ◽  
Late Eighteenth ◽  
History Of ◽  
Printed Music

ABSTRACTLarge-scale programming studies of French Revolutionary theatre confirm that the most frequently staged opera of the 1790s was not one of the politically charged, compositionally progressive works that have come to define the era for posterity, but rather a pastoral comedy from mid-century:Les deux chasseurs et la laitière(1763), with a score by Egidio Duni to a libretto by Louis Anseaume. This article draws upon both musical and archival evidence to establish an extended performance history ofLes deux chasseurs, and a more nuanced explanation for its enduring hold on the French lyric stage. I consider the pragmatic, legal and aesthetic factors contributing to the comedy's widespread adaptability, including its cosmopolitan musical idiom, scenographic simplicity and ready familiarity amongst consumers of printed music. More broadly, I address the advantages and limitations of corpus-based analysis with respect to delineating the operatic canon. In late eighteenth-century Paris, observers were already beginning to identify a chasm between their theatre-going experiences and the reactions of critics: Was a true piece of ‘Revolutionary’ theatre one that was heralded as emblematic of its time, or one, likeLes deux chasseurs, that was so frequently seen that it hardly elicited a mention in the printed record?

Geological evidence for strong historical earthquakes in an “aseismic” region: The Pollino case (Southern Italy)

1997 ◽  
Vol 24 (1-4) ◽  
pp. 67-86 ◽  
Author(s):  
Alessandro Maria Michetti ◽  
Luca Ferreli ◽  
Leonello Serva ◽  
Eutizio Vittori
Keyword(s):  
Southern Italy ◽  
Historical Earthquakes ◽  
Geological Evidence
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