Preseismic Ionospheric Anomalies Detected Before the 2016 Taiwan Earthquake

Shin itiro Goto; Ryoma Uchida; Kiyoshi Igarashi; Chia Hung Chen; Minghui Kao; Ken Umeno

doi:10.1029/2019JA026640

Preseismic Ionospheric Anomalies Detected Before the 2016 Taiwan Earthquake

Shin itiro Goto, Ryoma Uchida, Kiyoshi Igarashi, Chia Hung Chen, Minghui Kao, Ken Umeno

Department of Earth Sciences

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

6 Citations (Scopus)

Abstract

On 5 February 2016 (UTC), an earthquake with moment magnitude 6.4 occurred in southern Taiwan, known as the 2016 (Southern) Taiwan earthquake and 2016 Meinong earthquake. In this study, evidences of seismic earthquake precursors for this earthquake event are investigated. Results show that ionospheric anomalies in total electron content (TEC) can be observed before the earthquake. These anomalies were obtained by processing TEC data, where such TEC data are calculated from phase delays of signals observed at densely arranged ground-based stations in Taiwan for Global Navigation Satellite Systems. This shows that such anomalies were detected within 1 hr before the event.

Original language	English
Pages (from-to)	9239-9252
Number of pages	14
Journal	Journal of Geophysical Research: Space Physics
Volume	124
Issue number	11
DOIs	https://doi.org/10.1029/2019JA026640
Publication status	Published - 2019 Nov 1

All Science Journal Classification (ASJC) codes

Space and Planetary Science
Geophysics

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10.1029/2019JA026640

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title = "Preseismic Ionospheric Anomalies Detected Before the 2016 Taiwan Earthquake",

abstract = "On 5 February 2016 (UTC), an earthquake with moment magnitude 6.4 occurred in southern Taiwan, known as the 2016 (Southern) Taiwan earthquake and 2016 Meinong earthquake. In this study, evidences of seismic earthquake precursors for this earthquake event are investigated. Results show that ionospheric anomalies in total electron content (TEC) can be observed before the earthquake. These anomalies were obtained by processing TEC data, where such TEC data are calculated from phase delays of signals observed at densely arranged ground-based stations in Taiwan for Global Navigation Satellite Systems. This shows that such anomalies were detected within 1 hr before the event.",

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AU - Goto, Shin itiro

AU - Uchida, Ryoma

AU - Igarashi, Kiyoshi

AU - Chen, Chia Hung

AU - Kao, Minghui

AU - Umeno, Ken

PY - 2019/11/1

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N2 - On 5 February 2016 (UTC), an earthquake with moment magnitude 6.4 occurred in southern Taiwan, known as the 2016 (Southern) Taiwan earthquake and 2016 Meinong earthquake. In this study, evidences of seismic earthquake precursors for this earthquake event are investigated. Results show that ionospheric anomalies in total electron content (TEC) can be observed before the earthquake. These anomalies were obtained by processing TEC data, where such TEC data are calculated from phase delays of signals observed at densely arranged ground-based stations in Taiwan for Global Navigation Satellite Systems. This shows that such anomalies were detected within 1 hr before the event.

AB - On 5 February 2016 (UTC), an earthquake with moment magnitude 6.4 occurred in southern Taiwan, known as the 2016 (Southern) Taiwan earthquake and 2016 Meinong earthquake. In this study, evidences of seismic earthquake precursors for this earthquake event are investigated. Results show that ionospheric anomalies in total electron content (TEC) can be observed before the earthquake. These anomalies were obtained by processing TEC data, where such TEC data are calculated from phase delays of signals observed at densely arranged ground-based stations in Taiwan for Global Navigation Satellite Systems. This shows that such anomalies were detected within 1 hr before the event.

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Preseismic Ionospheric Anomalies Detected Before the 2016 Taiwan Earthquake

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