%0 Journal Article %T Nonvolcanic tremor observed in the Mexican subduction zone %+ Institut de Physique du Globe de Paris (IPGP) %A Payero, Juan S. %A Kostoglodov, Vladimir %A Shapiro, Nikolai %A Mikumo, Takeshi %A Iglesias, Arturo %A Pérez-Campos, Xyoli %A Clayton, Robert W. %< avec comité de lecture %@ 0094-8276 %J Geophysical Research Letters %I American Geophysical Union %V 35 %8 2008 %D 2008 %Z 2008GeoRL..35.7305P %R 10.1029/2007GL032877 %Z Sciences of the Universe [physics]Journal articles %X Nonvolcanic tremor (NVT) activity is revealed as episodes of higher spectral amplitude at 1-8 Hz in daily spectrograms from the continuous seismological records in Guerrero, Mexico. The analyzed data cover a period of 2001-2007 when in 2001-2002 a large slow slip event (SSE) had occurred in the Guerrero-Oaxaca region, and then a new large SSE occurred in 2006. The tremor burst is dominated by S-waves. More than 100 strong NVT bursts were recorded in the narrow band of ~40 × 150 km2 to the south of Iguala City and parallel to the coastline. Depths of NVT hypocenters are mostly scattered in the continental crust between 5 and 40 km depth. Tremor activity is higher during the 2001-2002 and 2006 SSE compared with that for the ``quiet'' period of 2003-2005. While resistivity pattern in Guerrero does not correlate directly with the NVT distribution, gravity and magnetic anomaly modeling favors a hypothesis that the NVT is apparently related to the dehydration and serpentinization processes. %G English %2 https://insu.hal.science/insu-03603730/document %2 https://insu.hal.science/insu-03603730/file/Geophysical%20Research%20Letters%20-%202008%20-%20Payero%20-%20Nonvolcanic%20tremor%20observed%20in%20the%20Mexican%20subduction%20zone.pdf %L insu-03603730 %U https://insu.hal.science/insu-03603730 %~ INSU %~ UNIV-PARIS7 %~ AFRIQ %~ CNRS %~ IPGP %~ SORBONNE-UNIVERSITE %~ UNIV-PARIS %~ SU-TI %~ ALLIANCE-SU