Ionospheric perturbations in possible association with the 2010 Haiti earthquake, as based on medium-distance subionospheric VLF propagation data

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dc.contributor.authorHayakawa M.
dc.contributor.authorRaulin J.P.
dc.contributor.authorKasahara Y.
dc.contributor.authorBertoni F.C.P.
dc.contributor.authorHobara Y.
dc.contributor.authorGuevara-Day W.
dc.date.accessioned2024-03-13T01:11:43Z
dc.date.available2024-03-13T01:11:43Z
dc.date.issued2011
dc.description.abstractIonospheric perturbations in possible association with the 2010 Haiti earthquake occurred on 12 January 2010 (with a magnitude of 7.0 and depth of 10 km) are investigated on the basis of subionospheric propagation data from the NAA transmitter on the east coast of the USA to a VLF receiving station in Peru. The local nighttime VLF amplitude data are extensively investigated during the period from the beginning of October 2009 to the end of March 2010, in which the trend (nighttime average amplitude), dispersion and nighttime fluctuation are analysed. It is found that a clear precursory ionosphere perturbation is detected just around New Years day of 2010, about 12 days before the main shock, which is characterised by the simultaneous decrease in the trend and the increases in dispersion and nighttime fluctuation. An additional finding might be the presence of the effect of the Earth's tide one and two months before the main shock, which can only be seen for a huge EQ. © Author(s) 2011.
dc.description.firstpage513
dc.description.issuenumber2
dc.description.lastpage518
dc.description.volume11
dc.identifier.doi10.5194/nhess-11-513-2011
dc.identifier.issn1561-8633
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/37012
dc.relation.ispartofNatural Hazards and Earth System Science
dc.rightsAcesso Aberto
dc.titleIonospheric perturbations in possible association with the 2010 Haiti earthquake, as based on medium-distance subionospheric VLF propagation data
dc.typeArtigo
local.scopus.citations31
local.scopus.eid2-s2.0-79951837459
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79951837459&origin=inward
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