A5074867165- Earthquake Detection and Analysis
- earthquake and tectonic studies
- Seismic Waves and Analysis
- Atmospheric Ozone and Climate
- Seismology and Earthquake Studies
- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Geomagnetism and Paleomagnetism Studies
- Atmospheric and Environmental Gas Dynamics
- Geophysical and Geoelectrical Methods
- Geological and Geophysical Studies
- Geophysical Methods and Applications
- Air Quality Monitoring and Forecasting
- Geochemistry and Geologic Mapping
- Radioactivity and Radon Measurements
- Meteorological Phenomena and Simulations
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Geophysics and Sensor Technology
- Spectroscopy and Laser Applications
- Astro and Planetary Science
- Spacecraft and Cryogenic Technologies
- Infrared Target Detection Methodologies
- Advanced X-ray and CT Imaging
- Complex Systems and Time Series Analysis
Istituto Nazionale di Geofisica e Vulcanologia
2011-2023
Imo State University
2009
University of L'Aquila
1991-1993
Abstract There are many reports on the occurrence of anomalous changes in ionosphere prior to large earthquakes. However, whether or not these reliable precursors that could be useful for earthquake prediction is controversial within scientific community. To test a possible statistical relationship between ionospheric disturbances and earthquakes, we compare total electron content (TEC) with occurrences 1279 M ≥ 6.0 earthquakes globally 2000–2014. We use TEC data from global map (GIM) an...
Abstract Heki (2011) and Enomoto (2013) claimed that anomalous, yet similar, increases of ionospheric total electron content (TEC) started ~40 min prior to the 2011 Tohoku‐Oki, as well before other M w > 8 earthquakes. The authors concluded reported TEC anomalies were likely related pending earthquakes, suggesting also monitoring may be useful for future earthquake prediction. Here we carefully examine findings by performing new analyses same data. Our interpretation is 40 onset...
On 3 November 2021, an interplanetary coronal mass ejection impacted the Earth’s magnetosphere leading to a relevant geomagnetic storm (Kp = 8-), most intense event that occurred so far during rising phase of solar cycle 25. This work presents state wind before and storm, as well response plasmasphere–ionosphere–thermosphere system in European sector. To investigate longitudinal differences, ionosphere–thermosphere American sector was also analyzed. The plasmasphere dynamics investigated...
Abstract Moore (1964) in a letter published Nature reported disturbances geomagnetic field data prior to the 27 March 1964 Alaska earthquake. After publication of this report, many papers have shown magnetic changes preceding earthquakes. However, causal relationship between preearthquake and impending earthquakes has never been demonstrated. As consequence, after 50 years, are still candidate precursory phenomena. Some researchers consider investigation ultra low frequency (ULF: 0.001–10...
During the last ten years, fractal analysis of ultra low frequency (ULF) geomagnetic field components has been proposed as one most promising tools to highlight magnetic precursory signals possibly generated by preparation processes earthquakes. Several papers claim seismogenic changes in features some months before earthquakes occur. The target present paper is put forth a qualitative investigation on characteristics ULF signatures that previous authors have claimed be related without doubt...
Abstract. Hayakawa et al. (2009) and (2011) have recently reviewed some "anomalous" ULF signatures in the geomagnetic field which previous publications claimed to be earthquake precursors. The motivation of this review is "to offer a further support definite presence those anomalies". Here, these precursors are once again. This brief communication shows that anomalies do not "increase credibility on electromagnetic phenomena associated with an earthquake" since anomalous signals actually...
Abstract Akaike information criterion (AIC) has been recently adopted to identify possible earthquake precursors in ionospheric total electron content (TEC). According the authors of this methodology, their technique allows finding abrupt increases (positive breaks) vertical TEC rate change 25–80 min before occurrence large earthquakes, highlighting a promising implication AIC method Mw > 8 earthquakes alert strategies. Due relevance matter, lively scientific debate ensued from these...
Abstract. Pulinets et al. (2007) document anomalous changes in the ionospheric total electron content (TEC) starting one week before 16 October 1999 Hector Mine earthquake. The authors maintain that this TEC change is a precursor of subsequent In previous paper, Afraimovich (2004) excluded variations, which occurred earthquake, were induced by preparation process seismic event. Thomas (2012) reach similar conclusions performing new analyses same data investigated (2007). They show documented...
Abstract We review the recent paper by Su et al. (2013). Using Global Position System and Ionospheric Maps data, claimed to have found ionospheric precursors a few days before 16 October 1999 Hector Mine, California, earthquake. They proposed that this type of analysis data may be useful for locating forthcoming large earthquakes. In Comment, we reexamine these show anomalies reported were not Mine Therefore, their is in context earthquake prediction.
Abstract. Several recently published reports have suggested that semi-stationary linear-cloud formations might be causally precursory to earthquakes. We examine the report of Guangmeng and Jie (2013), who claim predicted 2012 M 6.0 earthquake in Po Valley northern Italy after seeing a satellite photograph (a digital image) showing formation over eastern Apennine Mountains central Italy. From inspection 4 years images we find numerous examples A simple test shows no obvious statistical...
Abstract. Ida et al. (2005) document significant changes in the multi-fractal parameters of ULF geomagnetic field H component starting about one month before 1993 Guam earthquake. According to authors, these signatures can be considered as precursory signals As a consequence, they conclude that analysis may have an important role development short-term earthquake prediction capabilities. Since this and other similar reports motivated idea based on electromagnetic day become routine...
Abstract. During the last twenty years a time-synchronized network of magnetometers has operated in Central Italy along Apennine chain to monitor magnetic field anomalies eventually related tectonic activity. At present time consists five stations. In past only few local geomagnetic field, possibly associated earthquakes, been observed, not least because area shown low-moderate seismic activity with epicentres events Ml≥5 located away from station. 2007 two Ml≈4 earthquakes occurred...
Abstract. Prattes et al. (2011) report ULF magnetic anomalous signals claiming them to be possibly precursor of the 6 April 2009 MW = 6.3 L'Aquila earthquake. This comment casts doubts on possibility that observed signatures could have a seismogenic origin by showing these pre-earthquake are actually part normal global geomagnetic activity.
Abstract The scientific literature includes many reports of ionospheric phenomena that are retrospectively identified prior to seismic events. These disturbances the Earth's ionosphere considered be possible precursors impending earthquakes. However, a causal relationship between and earthquakes has never been definitively demonstrated, attempts at identifying precursory effects in have called into question by several studies. Among candidate indicators there is Spatial Scintillation Index...
Abstract. In a report published in Advances Space Research, Nenovski et al. (2015) analyse ionospheric TEC (total electron content) data from GPS measurements around the time of 6 April 2009 Mw 6. 1 L'Aquila (Italy) earthquake. According to authors, difference (DTEC) calculated two (Global Positioning System) receivers central Italy shows hump-like shape (an increase followed by decrease) during hours just before and shortly after main shock. They maintain that is anomalous may be related We...
Abstract. We are reporting the technological and scientific objectives of MEM project. The project has been activated in INGV Observatory L'Aquila to create Central Italy a network observatories order monitoring electromagnetic signals frequency band [0.001 Hz–100 kHz]. Some examples instrumentation developed frame reported. An innovative technique, based on wide interferometry is proposed obtain detailed information concerning several detected sources. Moreover, data from each station will...
Abstract. The technological and the scientific objectives of MEM (Magnetic Electric fields Monitoring) project concerning to study electromagnetic signals linked with Earth's crustal activity are reported. has been activated in Central Italy create a network observatories so as monitoring signals, both natural artificial, frequency band [0.001 Hz–100 kHz]. Some examples developed instrumentation know-how transfer industry We also report some results obtained first station installed area INGV...
Abstract. Many papers document the observation of earthquake-related precursory signatures in geomagnetic field data. However, significance these findings is ambiguous because authors did not adequately take into account that signals could have been generated by other sources, and seismogenic origin validated comparison with independent datasets. Thus, they are reliable examples magnetic disturbances induced seismic activity. Hayakawa et al. (2004) claim at time 2000 Izu swarm Hurst exponent...
Abstract We investigate magnetic effects in correspondence of the M w 6.1 L'Aquila earthquake. Magnetic and seismic records are analyzed. Rapid distinct changes an offset can be seen field components after main shock. show that these result from electromagnetic induction due to movement sensors through Earth's a permanent displacement their original position caused by passing waves. A transient signal total data overhauser magnetometer apparently occurs with Our analysis shows was not...
Abstract. In this paper we provide comments about the potential seismogenic origin of magnetic disturbances that Di Lorenzo et al. (2011) observed from few minutes before to one hour after 6 April 2009 L'Aquila earthquake. The coincidence with earthquake induced authors think signals were linked main phase seismic event. Here, will discuss unusual polarization in X–Z plane by (2011), model source have proposed for generation these signals, and time length data set shown their paper. We also...