Tidal synchronicity of the 26 December 2004 Sumatran earthquake and its aftershocks

Robin G M Crockett; Gavin K Gillmore; Paul S Phillips; David D Gilbertson

doi:10.1029/2006GL027074

Tidal synchronicity of the 26 December 2004 Sumatran earthquake and its aftershocks

Robin G M Crockett, Gavin K Gillmore, Paul S Phillips, David D Gilbertson

University of Northampton

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

Abstract

The frequency of earthquake incidence along the Andaman/Sunda/Java Trench plate-boundary region has been investigated for the ten-lunar-month period 28 October 2004–19 August 2005, encompassing the 26 December 2004 earthquake. During this period variations in earthquake activity correlate with the tidal-force cycles: maxima in earthquake activity occur around the times of new and full moons, typically lagging by 0–3 days. This relationship is consistent with earthquake inducement via ocean tidal loading. Also, during this period the earthquake incidence associated with new and full moons at the western end of the region was (a) 38% and (b) 86% higher than the period averages for the full and declustered major-earthquake catalogs respectively.

Original language	English
Journal	Geophysical Research Letters
Volume	33
Issue number	19
DOIs	https://doi.org/10.1029/2006GL027074
Publication status	Published - 5 Oct 2006

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title = "Tidal synchronicity of the 26 December 2004 Sumatran earthquake and its aftershocks",

abstract = "The frequency of earthquake incidence along the Andaman/Sunda/Java Trench plate-boundary region has been investigated for the ten-lunar-month period 28 October 2004–19 August 2005, encompassing the 26 December 2004 earthquake. During this period variations in earthquake activity correlate with the tidal-force cycles: maxima in earthquake activity occur around the times of new and full moons, typically lagging by 0–3 days. This relationship is consistent with earthquake inducement via ocean tidal loading. Also, during this period the earthquake incidence associated with new and full moons at the western end of the region was (a) 38% and (b) 86% higher than the period averages for the full and declustered major-earthquake catalogs respectively.",

author = "Crockett, {Robin G M} and Gillmore, {Gavin K} and Phillips, {Paul S} and Gilbertson, {David D}",

year = "2006",

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T1 - Tidal synchronicity of the 26 December 2004 Sumatran earthquake and its aftershocks

AU - Crockett, Robin G M

AU - Gillmore, Gavin K

AU - Phillips, Paul S

AU - Gilbertson, David D

PY - 2006/10/5

Y1 - 2006/10/5

N2 - The frequency of earthquake incidence along the Andaman/Sunda/Java Trench plate-boundary region has been investigated for the ten-lunar-month period 28 October 2004–19 August 2005, encompassing the 26 December 2004 earthquake. During this period variations in earthquake activity correlate with the tidal-force cycles: maxima in earthquake activity occur around the times of new and full moons, typically lagging by 0–3 days. This relationship is consistent with earthquake inducement via ocean tidal loading. Also, during this period the earthquake incidence associated with new and full moons at the western end of the region was (a) 38% and (b) 86% higher than the period averages for the full and declustered major-earthquake catalogs respectively.

AB - The frequency of earthquake incidence along the Andaman/Sunda/Java Trench plate-boundary region has been investigated for the ten-lunar-month period 28 October 2004–19 August 2005, encompassing the 26 December 2004 earthquake. During this period variations in earthquake activity correlate with the tidal-force cycles: maxima in earthquake activity occur around the times of new and full moons, typically lagging by 0–3 days. This relationship is consistent with earthquake inducement via ocean tidal loading. Also, during this period the earthquake incidence associated with new and full moons at the western end of the region was (a) 38% and (b) 86% higher than the period averages for the full and declustered major-earthquake catalogs respectively.

U2 - 10.1029/2006GL027074

DO - 10.1029/2006GL027074

M3 - Article

SN - 0094-8276

VL - 33

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 19

ER -

Tidal synchronicity of the 26 December 2004 Sumatran earthquake and its aftershocks

Abstract

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