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DEVELOPING SEISMIC INTENSITY MAPS FROM TWITTER DATA; THE CASE STUDY OF LESVOS, GREECE 2017 EARTHQUAKE: ASSESSMENTS, IMPROVEMENTS AND ENRICHMENTS ON THE METHODOLOGY
seismic intensity twitter volunteered geographic information VGI
2018/4/18
This article presents an effort to validate and further improve a previously published innovative approach for drawing macroseismic intensity maps from data extracted from sources of volunteered geogr...
DEVELOPING SEISMIC INTENSITY MAPS FROM TWITTER DATA; THE CASE STUDY OF LESVOS, GREECE 2017 EARTHQUAKE: ASSESSMENTS, IMPROVEMENTS AND ENRICHMENTS ON THE METHODOLOGY
seismic intensity twitter volunteered geographic information VGI
2018/5/8
This article presents an effort to validate and further improve a previously published innovative approach for drawing macroseismic intensity maps from data extracted from sources of volunteered geogr...
3D characteristics of ADCP echo intensity anomaly observed over the Snail, Archean, and Pika hydrothermal vent fields in the South Mariana Trough
South Mariana Trough hydrothermal plume AUV 3D mapping ADCP echo intensity
2017/4/10
We conducted four dives using the Urashima autonomous underwater vehicle (AUV) over three hydrothermal vent
fields (Snail, Archean, and Pika) within the South Mariana Trough in July 2009, and measure...
Seismic scenarios and assessment of intensity: some criteria for the use of the MCS scale
macroseismic scale macroseismic intensity MCS scale
2015/9/30
The macroseismic scale used for the classification of the more than 33100 seismic effects of the Catalogue of Strong Italian Earthquakes (CFTI3) is the Mercalli Cancani Sieberg (MCS). As in all scales...
Reducing the subjectivity of intensity estimates: the Fuzzy Set approach
macroseismic intensity fuzzy sets Mugello Garfagnana
2015/9/30
We describe a method for the encoding and the computer analysis of the macroseismic effects deduced from historical sources allowing the complete formalization of the process of seismic intensity asse...
Bayesian analysisof a probability distribution for local intensity attenuation
Beta distribution binomial distribution power law random intensity decay validation
2015/9/15
Intensity attenuation and its variation as a function of the distance and earthquake size is still a critical issue in evaluating seismic hazard. We present a method that allows us to incorporate addi...
The investigation of the records of past earthquakes in Europe and in other countries of the world produced in recent years a large amount of information, such as historical seismicity studies, earthq...
The attenuation of seismic intensity in the Etna region and comparison with other Italian volcanic districts
macroseismic intensity attenuation Mt. Etna Italian volcanic areas
2015/9/8
A detailed analysis of the intensity attenuation in the Etna and other Italian volcanic districts, was performed using the most recent and complete intensity datasets. Attenuation laws were derived th...
A new dataset and empirical relationships between magnitude/intensity and epicentral distance for liquefaction in central-eastern Sicily
seismo-induced effects liquefaction dataset magnitude-distance relationships geologic hazard Sicily
2015/9/2
Strong earthquakes can trigger several phenomena inducing soil deformation, such as liquefaction, ground fracturing and landslides, which can often cause more damage than the seismic shaking itself. A...
Effects of surface irregularities on intensity data from laser scanning: an experimental approach
Terrestrial Laser Scanner Intensity Incidence Angle
2015/9/1
The results of an experiment carried out with the aim to investigate the role of surface irregularities on the intensity data provided by a terrestrial laser scanner (TLS) survey are reported here. De...
The intensity attenuation of Colfiorito and other strong earthquakes:the viewpoint of forecasters and data gatherers
Attenuation Forecast Macroseismic intensity Seismic scenario Validation criteria
2015/9/1
This article has been originated by thoughts on previous analyses related to the proba- bilistic treatment of the macroseismic attenuation, from which it turns out that in Italian territory the intens...
USGS “Did You Feel It?” Internet-based macroseismic intensity maps
Macroseismology Ground motions Internet seismology
2015/8/27
The U.S. Geological Survey (USGS) “Did You Feel It?” (DYFI) system is an automated approach for rapidly collecting macroseismic intensity data from Internet users’ shaking and damage reports and gener...
Can vesicle size distributions assess eruption intensity during volcanic activity?
volcanic activity vesicle size
2015/1/5
We studied three-dimensional (3-D) vesicle size
distributions by X-ray microtomography in scoria collected
during the relatively quiescent Phase II of the April–May
2010 eruption at Eyjafjallaj...
A probabilistic approach to heterogeneity in space plasmas:the case of magnetic field intensity in solar wind
probabilistic approach heterogeneity space plasmas magnetic field intensity
2009/10/30
Since the early 90s it was shown that Probability Distribution Functions (PDFs) of small scale differences (fluctuations) of several quantities in space plasmas display significant departures from Gau...
Variations in the Geomagnetic Field and Auroral-Zone X-Ray Intensity in the Pi 1 Period Range
physics geomagnetism geophysics X-Ray
2009/6/18
Variations in the Geomagnetic Field and Auroral-Zone X-Ray Intensity in the Pi 1 Period Range.