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Tectonic tremor beneath Cuba triggered by the M (sub w) 8.8 Maule and M (sub w) 9.0 Tohoku-oki earthquakes

Zhigang Peng, Hector Gonzalez-Huizar, Kevin Chao, Chastity Aiken, Bladimir Moreno and Gregory Armstrong
Tectonic tremor beneath Cuba triggered by the M (sub w) 8.8 Maule and M (sub w) 9.0 Tohoku-oki earthquakes
Bulletin of the Seismological Society of America (February 2013) 103 (1): 595-600

Abstract

We provide additional evidence of tectonic tremor in Cuba triggered by the 2010 M (sub w) 8.8 Maule, Chile, and the 2011 M (sub w) 9.0 Tohoku-Oki, Japan, earthquakes. The high-frequency tremor signals are modulated by long-period surface waves, similar to triggered tremors observed in other tectonically active regions. We are able to locate two tremor sources triggered by the Tohoku-Oki earthquake near the east-west trending Oriente fault around Guantanamo Bay. The tremor around Guantanamo Bay was triggered primarily by a Love wave of the Maule mainshock, and by both Love and Rayleigh waves of the Tohoku-Oki mainshock. This is consistent with frictional failures at a vertical strike-slip fault under a Coulomb failure criterion. Online Material: Figure of envelope functions of tremor records, and movies of spectogram and tremor correlation.


ISSN: 0037-1106
EISSN: 1943-3573
Serial Title: Bulletin of the Seismological Society of America
Serial Volume: 103
Serial Issue: 1
Title: Tectonic tremor beneath Cuba triggered by the M (sub w) 8.8 Maule and M (sub w) 9.0 Tohoku-oki earthquakes
Affiliation: Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States
Pages: 595-600
Published: 201302
Text Language: English
Publisher: Seismological Society of America, Berkeley, CA, United States
References: 16
Accession Number: 2013-023687
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map
N19°30'00" - N21°00'00", W77°00'00" - W74°00'00"
Secondary Affiliation: University of Texas at El Paso, USA, United StatesUniversity of Tokyo, JPN, JapanCentro Nacional Investigaciones Sismologicas, CUB, CubaGeorgia State University, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201315
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