The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake

For earthquakes (M ≥ 2.0) occurring in and around the aftershock zone of the M7.1 Ridgecrest earthquake between January 2000 and June 2019, we analyzed the correlation between the phase of Earth's rotation and the occurrence of earthquakes. The Schuster's test and the two-rate Poisson mode...

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Autores principales:	Yane Li, Xuezhong Chen, Lijuan Chen
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	the m7.1 ridgecrest earthquake earth's rotation correlation schuster test two-rate poisson model Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Risk in industry. Risk management HD61
Acceso en línea:	https://doaj.org/article/5b1534c4b6b94a1c9f24d5480ca3a5c5
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spelling	oai:doaj.org-article:5b1534c4b6b94a1c9f24d5480ca3a5c52021-11-04T15:00:42ZThe Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake1947-57051947-571310.1080/19475705.2021.1993355https://doaj.org/article/5b1534c4b6b94a1c9f24d5480ca3a5c52021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/19475705.2021.1993355https://doaj.org/toc/1947-5705https://doaj.org/toc/1947-5713For earthquakes (M ≥ 2.0) occurring in and around the aftershock zone of the M7.1 Ridgecrest earthquake between January 2000 and June 2019, we analyzed the correlation between the phase of Earth's rotation and the occurrence of earthquakes. The Schuster's test and the two-rate Poisson model were used to statistically examine the correlation between the phase of Earth's rotation and the occurrence of earthquakes. For the Schuster's test, the results were judged based on the P-value. When the P-value is smaller, the correlation is higher. In general, if P ≤ 5%, the correlation is significant. For the two-rate Poisson model, the results were evaluated by R. When the 95% confidence lower limit on R (RL) is over one, earthquakes could be non-random. We calculated the temporal variation on the P-value for earthquakes that occurred in the study region and found lower P-values, corresponding to significant correlation for earthquakes (2.0 ≤ M ≤ 2.4) occurring before the M7.1 event. When the P-value reached to the lowest, the earthquake nucleated when the Earth's acceleration of rotation is increasing or near the peak acceleration. This correlation is also confirmed by the two-rate Poisson model. The spacial distribution of the P-values for earthquakes (2.0 ≤ M ≤ 2.4) occurring from Jul. 2013 to Jun. 2019 shows that areas of low P-value were located mainly in and around the northwest segment of the aftershock zone of the M7.1 Ridgecrest earthquake. The lower P-value obtained in this study emphasises that the Earth's rotation can triggered earthquakes in and around the aftershock zone prior to the M7.1 Ridgecrest earthquake and hence it may be considered as one of the precursors.Yane LiXuezhong ChenLijuan ChenTaylor & Francis Grouparticlethe m7.1 ridgecrest earthquakeearth's rotationcorrelationschuster testtwo-rate poisson modelEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350Risk in industry. Risk managementHD61ENGeomatics, Natural Hazards & Risk, Vol 12, Iss 1, Pp 3021-3034 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	the m7.1 ridgecrest earthquake earth's rotation correlation schuster test two-rate poisson model Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Risk in industry. Risk management HD61
spellingShingle	the m7.1 ridgecrest earthquake earth's rotation correlation schuster test two-rate poisson model Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Risk in industry. Risk management HD61 Yane Li Xuezhong Chen Lijuan Chen The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake
description	For earthquakes (M ≥ 2.0) occurring in and around the aftershock zone of the M7.1 Ridgecrest earthquake between January 2000 and June 2019, we analyzed the correlation between the phase of Earth's rotation and the occurrence of earthquakes. The Schuster's test and the two-rate Poisson model were used to statistically examine the correlation between the phase of Earth's rotation and the occurrence of earthquakes. For the Schuster's test, the results were judged based on the P-value. When the P-value is smaller, the correlation is higher. In general, if P ≤ 5%, the correlation is significant. For the two-rate Poisson model, the results were evaluated by R. When the 95% confidence lower limit on R (RL) is over one, earthquakes could be non-random. We calculated the temporal variation on the P-value for earthquakes that occurred in the study region and found lower P-values, corresponding to significant correlation for earthquakes (2.0 ≤ M ≤ 2.4) occurring before the M7.1 event. When the P-value reached to the lowest, the earthquake nucleated when the Earth's acceleration of rotation is increasing or near the peak acceleration. This correlation is also confirmed by the two-rate Poisson model. The spacial distribution of the P-values for earthquakes (2.0 ≤ M ≤ 2.4) occurring from Jul. 2013 to Jun. 2019 shows that areas of low P-value were located mainly in and around the northwest segment of the aftershock zone of the M7.1 Ridgecrest earthquake. The lower P-value obtained in this study emphasises that the Earth's rotation can triggered earthquakes in and around the aftershock zone prior to the M7.1 Ridgecrest earthquake and hence it may be considered as one of the precursors.
format	article
author	Yane Li Xuezhong Chen Lijuan Chen
author_facet	Yane Li Xuezhong Chen Lijuan Chen
author_sort	Yane Li
title	The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake
title_short	The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake
title_full	The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake
title_fullStr	The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake
title_full_unstemmed	The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake
title_sort	earth's rotation-triggered earthquakes preceding the occurrence of the 2019 m7.1 ridgecrest earthquake
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/5b1534c4b6b94a1c9f24d5480ca3a5c5
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The Earth's rotation-triggered earthquakes preceding the occurrence of the 2019 M7.1 Ridgecrest earthquake

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