Tiny intraplate earthquakes triggered by nearby episodic tremor and slip in Cascadia
نویسندگان
چکیده
منابع مشابه
Future Cascadia megathrust rupture delineated by episodic tremor and slip
[1] A suite of 15 episodic tremor and slip events imaged between 1997 and 2008 along the northern Cascadia subduction zone suggests future coseismic rupture will extend to 25 km depth, or 60 km inland of the Pacific coast, rather than stopping offshore at 15 km depth. An ETS-derived coupling profile accurately predicts GPSmeasured interseismic deformation of the overlying North American plate, ...
متن کاملSegmentation in episodic tremor and slip all along Cascadia
A.1. Slow Slip Episodes In this section, we discuss the relevant information for identification of slow slip episodes, with additional details presented elsewhere (Holtkamp et al., 2006, ms. in prep.). The GPS data analyzed for slow slip episodes is from the PANGA network provided by the Central Washington University clearinghouse (2005). PANGA time series are network solutions with phase ambig...
متن کاملIntraplate Triggered Earthquakes: Observations and Interpretation
We present evidence that at least two of the three 1811–1812 New Madrid, central United States, mainshocks and the 1886 Charleston, South Carolina, earthquake triggered earthquakes at regional distances. In addition to previously published evidence for triggered earthquakes in the northern Kentucky/southern Ohio region in 1812, we present evidence suggesting that triggered events might have occ...
متن کاملEpisodic tremor and slip on the Cascadia subduction zone: the chatter of silent slip.
We found that repeated slow slip events observed on the deeper interface of the northern Cascadia subduction zone, which were at first thought to be silent, have unique nonearthquake seismic signatures. Tremorlike seismic signals were found to correlate temporally and spatially with slip events identified from crustal motion data spanning the past 6 years. During the period between slips, tremo...
متن کاملEarthquakes triggered by silent slip events on Kı̄lauea volcano, Hawaii
Slow-slip events, or ‘silent earthquakes’, have recently been discovered in a number of subduction zones including the Nankai trough in Japan, Cascadia, and Guerrero in Mexico, but the depths of these events have been difficult to determine from surface deformation measurements. Although it is assumed that these silent earthquakes are located along the plate megathrust, this has not been proved...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2011
ISSN: 1525-2027
DOI: 10.1029/2011gc003559