Tohoku-Oki
Coulomb stress change for the normal fault aftershocks triggered near the Japan Trench by the 2011 Mw 9 0 Tohoku Oki earthquake
... 2011 Tohoku-Oki earthquake, we refer to the depths of the upper plate inter- face of the subducted Pacific plate determined by Takeuchi et ...the Tohoku-Oki earthquake ...
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Spatio temporal distribution of seismic moment release near the source area of the 2011 Tohoku Oki earthquake
... Here, it should be emphasized that although we cannot specifically estimate the timing and threshold of megathrust fault ruptures, our conceptual model provides plausible rup- ture scenarios in a spatial resolution for ...
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Combined logarithmic and exponential function model for fitting postseismic GNSS time series after 2011 Tohoku Oki earthquake
... 9 Tohoku- Oki earthquake indicates that a single decay function cannot be used to represent the postseismic ...the Tohoku-Oki earthquake have contributed to the detection of a slow-slip event ...
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Rheological profile across the NE Japan interplate megathrust in the source region of the 2011 Mw9 0 Tohoku oki earthquake
... Lamb (2006) assumed that the region behind the Tohoku-oki megathrust beneath the volcanic arc was in a neutral stress state (i.e., zero deviatric components in backstop stress). This assumption is ...
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Strong localized asperity of the 2011 Tohoku Oki earthquake, Japan
... Our moment tensor inversion of the 2011 Tohoku-Oki earthquake, using regional broadband strong-motion waveforms, indicates that the earthquake can be approximated by a point source. The amplitude spectra of ...
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Monthly GRACE detection of coseismic gravity change associated with 2011 Tohoku Oki earthquake using northern gradient approach
... not to contain the coseismic signals. The results with 300 km Gaussian smoothing only are shown in Figure 6f. The gradient changes of February 2011 range relatively smaller than those of April 2011, from −0.7 to +0.7 × ...
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On the possibility of the 2011 Tohoku-oki earthquake reactivating Shinmoe-dake volcano, southwest Japan: insights from strain data measured in vaults
... Finally, we note that the above discussion applies only to the eruption event on 13 March 2011, which occurred shortly after the Tohoku-oki earthquake on 11 March 2011. It has been proposed that ...
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Unusual low angle normal fault earthquakes after the 2011 Tohoku oki megathrust earthquake
... 2011 Tohoku-oki earthquake, it is almost impossible to detect spatial heterogeneity of slip with a length scale of a few tens of kilometers from inversion analyses of geodetic and seismic ...2011 ...
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Rapid estimation of the moment magnitude of the 2011 Tohoku Oki earthquake (Mw 9 0) from static strain changes
... For purposes related to forecasting Tokai, Tonankai, and Nankai earthquakes, AIST maintains 17 borehole obser- vatories in the Tokai region, on the Kii Peninsula, and on the island of Shikoku; these observatories record ...
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Field measurements and numerical modeling for the run up heights and inundation distances of the 2011 Tohoku oki tsunami at Sendai Plain, Japan
... We conducted an urgent field survey at the Sendai Plain to measure the run-up heights and inundation distances of the 2011 Tohoku-oki tsunami. We used GPS measurements because of the remarkably long ...
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Source process with heterogeneous rupture velocity for the 2011 Tohoku Oki earthquake based on 1 Hz GPS data
... 2011 Tohoku-Oki earthquake, all available hr- GPS stations are located west of the rupture area and lack the constraints on the fault rupture near the Japan ...
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Generation mechanism of large later phases of the 2011 Tohoku-oki tsunami causing damages in Hakodate, Hokkaido, Japan
... Original waveforms observed at two tide gauges in Hako- date and Urakawa (Fig. 1) were digitized from the report of the 2011 Tohoku-oki earthquake by the Japan Meteoro- logical Agency (JMA 2012). The ...
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Coseismic deformation due to the 2011 Tohoku oki earthquake: influence of 3 D elastic structure around Japan
... The Japanese islands are covered by a network with more than 1200 permanent GPS stations run by the Geospa- tial Information Authority (GSI) of Japan (e.g., Sagiya et al. 2000). GSI releases daily site location solutions ...
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Distributed fault slip model for the 2011 Tohoku-Oki earthquake from GNSS and GRACE/GOCE satellite gravimetry
... The GRACE mission, launched in 2002, measures the Earth’s static gravity field and its temporal variations [Tapley et al., 2004]. The GRACE measurement principle is based on a very accurate determination of range ...
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Consistency of PPP GPS and strong motion records: case study of Mw9 0 Tohoku Oki 2011 earthquake
... In this study, the data collected by three dense geophysical monitoring networks are used: the two strong motion networks of K-NET and KiK-net, and the GPS network of Japan during the Mw9.0 Tohoku-Oki 2011 ...
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Constraints on the early stage rupture process of the 2011 Tohoku oki earthquake from 1 Hz GPS data
... 2011 Tohoku-oki ...2011 Tohoku-oki earthquake must have been so small that any substantial displacements were not observed on ...2011 Tohoku-oki earthquake, 1-Hz GPS, rupture ...
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Rupture process of the largest aftershock of the M 9 Tohoku oki earthquake obtained from a back projection approach using the MeSO net data
... Strong seismic energy was radiated from the region adjoin- ing the major slip area at the 2008 Ibaraki-oki event. The maps in Fig. 4 are snapshots showing the propagation of the rupture. The rupture propagated ...
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Estimation of three-dimensional crustal movements in the 2011 Tohoku-Oki, Japan, earthquake from TerraSAR-X intensity images
... Abstract. The Tohoku-Oki earthquake on 11 March 2011 caused significant widespread crustal movements. In a pre- vious study, we proposed a method for capturing two- dimensional (2-D) surface displacements ...
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Fault model of the 2012 doublet earthquake, near the up-dip end of the 2011 Tohoku-Oki earthquake, based on a near-field tsunami: implications for intraplate stress state
... We thank the reviewer Thorne Lay and another anonymous reviewer, as well as the editor, Frantisek Gallovic, for their reviews and insightful comments. We thank Koichiro Obana for providing aftershock data and Keisuke ...
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Long period surface motion of the multi patch Mw9 0 Tohoku Oki earthquake
... Stewart et al. (2013) extensively compared GMPEs to the observed ground motion of the Tohoku-Oki event and could not detect the stability of MGA/MGV with increasing distance. Indeed, whereas high-frequency ...
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