A statistical investigation of preearthquake ionospheric anomaly

J. Y. Liu; Y. I. Chen; Y. J. Chuo; C. S. Chen

doi:10.1029/2005JA011333

A statistical investigation of preearthquake ionospheric anomaly

J. Y. Liu, Y. I. Chen, Y. J. Chuo, C. S. Chen

Graduate Institute of Statistics and Information Science

Research output: Contribution to journal › Article › peer-review

252 Citations (Scopus)

Abstract

Empirical evidence of the preearthquake ionospheric anomalies (PEIAs) is reported by statistically investigating the relationship between variations of the plasma frequency at the ionospheric F2 peak foF2 and 184 earthquakes with magnitude M ≥ 5.0 during 1994-1999 in the Taiwan area. The PEIA, defined as the abnormal decrease more than about 25% in the ionospheric foF2 during the afternoon period, 1200-1800 LT, significantly occurs within 5 days before the earthquakes. Moreover, the odds of earthquakes with PEIA increase with the earthquake magnitude but decrease with the distance from the epicenter to the ionosonde station. These results indicate that the PEIA is energy related.

Original language	English
Article number	A05304
Journal	Journal of Geophysical Research: Space Physics
Volume	111
Issue number	5
DOIs	https://doi.org/10.1029/2005JA011333
Publication status	Published - 2006 May 1

All Science Journal Classification (ASJC) codes

Geophysics
Forestry
Oceanography
Aquatic Science
Ecology
Water Science and Technology
Soil Science
Geochemistry and Petrology
Earth-Surface Processes
Atmospheric Science
Earth and Planetary Sciences (miscellaneous)
Space and Planetary Science
Palaeontology

Access to Document

10.1029/2005JA011333

Fingerprint Dive into the research topics of 'A statistical investigation of preearthquake ionospheric anomaly'. Together they form a unique fingerprint.

Cite this

@article{dee3a0922a4c4e3eb9af1ee4218009b2,

title = "A statistical investigation of preearthquake ionospheric anomaly",

abstract = "Empirical evidence of the preearthquake ionospheric anomalies (PEIAs) is reported by statistically investigating the relationship between variations of the plasma frequency at the ionospheric F2 peak foF2 and 184 earthquakes with magnitude M ≥ 5.0 during 1994-1999 in the Taiwan area. The PEIA, defined as the abnormal decrease more than about 25% in the ionospheric foF2 during the afternoon period, 1200-1800 LT, significantly occurs within 5 days before the earthquakes. Moreover, the odds of earthquakes with PEIA increase with the earthquake magnitude but decrease with the distance from the epicenter to the ionosonde station. These results indicate that the PEIA is energy related.",

author = "Liu, {J. Y.} and Chen, {Y. I.} and Chuo, {Y. J.} and Chen, {C. S.}",

year = "2006",

month = may,

day = "1",

doi = "10.1029/2005JA011333",

language = "English",

volume = "111",

journal = "Journal of Geophysical Research",

issn = "0148-0227",

publisher = "American Geophysical Union",

number = "5",

}

TY - JOUR

T1 - A statistical investigation of preearthquake ionospheric anomaly

AU - Liu, J. Y.

AU - Chen, Y. I.

AU - Chuo, Y. J.

AU - Chen, C. S.

PY - 2006/5/1

Y1 - 2006/5/1

N2 - Empirical evidence of the preearthquake ionospheric anomalies (PEIAs) is reported by statistically investigating the relationship between variations of the plasma frequency at the ionospheric F2 peak foF2 and 184 earthquakes with magnitude M ≥ 5.0 during 1994-1999 in the Taiwan area. The PEIA, defined as the abnormal decrease more than about 25% in the ionospheric foF2 during the afternoon period, 1200-1800 LT, significantly occurs within 5 days before the earthquakes. Moreover, the odds of earthquakes with PEIA increase with the earthquake magnitude but decrease with the distance from the epicenter to the ionosonde station. These results indicate that the PEIA is energy related.

AB - Empirical evidence of the preearthquake ionospheric anomalies (PEIAs) is reported by statistically investigating the relationship between variations of the plasma frequency at the ionospheric F2 peak foF2 and 184 earthquakes with magnitude M ≥ 5.0 during 1994-1999 in the Taiwan area. The PEIA, defined as the abnormal decrease more than about 25% in the ionospheric foF2 during the afternoon period, 1200-1800 LT, significantly occurs within 5 days before the earthquakes. Moreover, the odds of earthquakes with PEIA increase with the earthquake magnitude but decrease with the distance from the epicenter to the ionosonde station. These results indicate that the PEIA is energy related.

UR - http://www.scopus.com/inward/record.url?scp=33947667907&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947667907&partnerID=8YFLogxK

U2 - 10.1029/2005JA011333

DO - 10.1029/2005JA011333

M3 - Article

AN - SCOPUS:33947667907

VL - 111

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

IS - 5

M1 - A05304

ER -