New Evidence of Earthquake and Volcano Triggering by Strong Tides

At the end of June in 2000, volcanic and seismic events started at the Izu islands south to Tokyo. Until the end of August, both the volcanic and seismic activities were high. A tidal model triggering earthquakes and volcanoes is proposed based on the observational data and calculation results. Befo...

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Bibliographic Details
Published in:Chinese journal of geophysics 2004-07, Vol.47 (4), p.703-708
Main Authors: YANG, Xue‐Xiang, HAN, Yan‐Ben, CHEN, Zhen, QIAO, Qi‐Yuan
Format: Article
Language:English
Subjects:
Earth's rotation
Earthquake swarm
El Nino
La Nina
Strong tide
Volcano
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Summary:At the end of June in 2000, volcanic and seismic events started at the Izu islands south to Tokyo. Until the end of August, both the volcanic and seismic activities were high. A tidal model triggering earthquakes and volcanoes is proposed based on the observational data and calculation results. Before and after the El Nino event and La Nina event, the oceanic water in East Pacific Ocean and West Pacific Ocean may rise or fall 40–60cm oppositely, which make the oceanic crust fall or rise 13–20cm. It is the reason that the El Nino events and La Nina events are interrelated with the earthquakes and volcanoes. This phenomenon is just like “see‐saw” motion. Strong tide and El Nino are the excitation condition of earthquakes and volcanoes.
ISSN:0898-9591
2326-0440
DOI:10.1002/cjg2.3540