2011 Tohoku-Oki
Strong localized asperity of the 2011 Tohoku Oki earthquake, Japan
... the 2011 Tohoku-Oki earthquake, using regional broadband strong-motion waveforms, indicates that the earthquake can be approximated by a point ...
6
Spatio temporal distribution of seismic moment release near the source area of the 2011 Tohoku Oki earthquake
... During the past several decades, various geophysical methods and datasets have been used to understand the mechanisms behind these devastating earthquakes, includ- ing seismic and geodetic ground motion datasets ...
9
Source process with heterogeneous rupture velocity for the 2011 Tohoku Oki earthquake based on 1 Hz GPS data
... Lay 2011), or on joint inversion combining hr-GPS with other datasets such as seismic waveforms (Yue and Lay 2013) or static GPS displacement (Vigny et ...Lay 2011). However, Lee et al. (2011) showed ...
17
Coseismic deformation due to the 2011 Tohoku oki earthquake: influence of 3 D elastic structure around Japan
... the Tohoku-oki earthquake given different structural configurations in order to understand how the various components influ- ence the inferred slip distribution and seismic ...
15
Field measurements and numerical modeling for the run up heights and inundation distances of the 2011 Tohoku oki tsunami at Sendai Plain, Japan
... 2–4, 2011, the earliest timing to conduct the survey after rescue efforts and life safety issues had been resolved to most of the tsunami- affected area ...
11
Rapid estimation of the moment magnitude of the 2011 Tohoku Oki earthquake (Mw 9 0) from static strain changes
... According to Roeloffs (2010), the use of GTSMs is problematic because vertical coupling can reduce appar- ent areal strain coupling coefficients. The AIST strainme- ter array includes four GTSMs, AIST has confirmed that ...
8
Unusual low angle normal fault earthquakes after the 2011 Tohoku oki megathrust earthquake
... the 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 ...the ...
7
Monthly GRACE detection of coseismic gravity change associated with 2011 Tohoku Oki earthquake using northern gradient approach
... From the 4-year synthetic GRACE observations, we obtain the differences between the mean over 2 years before (from April 2007 to February 2009) and after (from April 2009 to February 2011) the synthetic ...
11
Combined logarithmic and exponential function model for fitting postseismic GNSS time series after 2011 Tohoku Oki earthquake
... the 2011 Tohoku-Oki earthquake for a short period (<1 year), and it generally underestimates the future evolution of the displacements (east component in ...
12
Constraints on the early stage rupture process of the 2011 Tohoku oki earthquake from 1 Hz GPS data
... Other than seismic waveform inversion, a back projection analysis, using the Metropolitan Seismic Observation Net- work (MeSO-net) that passes through the Tokyo Metropoli- tan area, shows moment release both in the ...
7
Variability of megathrust earthquakes in the world revealed by the 2011 Tohoku oki Earthquake
... the 2011 megathrust earthquake was not a conventional great earthquake, which had been thought to be confined only to multiple Segments B, C, D and E in the island-arc direc- ...the 2011 megathrust event of ...
10
Importance of rheological heterogeneity for interpreting viscoelastic relaxation caused by the 2011 Tohoku Oki earthquake
... Many researchers have studied the early postseismic deformation following the 2011 Tohoku-Oki earthquake. For example, Ozawa et al. (2012) argued that afterslip was the dominant mechanism; Diao et ...
12
A dynamic model of the frequency dependent rupture process of the 2011 Tohoku Oki earthquake
... Fig. 1. Shallow secondary features of the Tohoku-Oki earthquake identified in MUSIC back-projection from (a) USArray and (b) European array. The thick black line, double line curve, and the black line east ...
6
Detection of seismic events triggered by P waves from the 2011 Tohoku Oki earthquake
... Ando, 2011; Shelly et al., 2011) also causes large-amplitude NVT during surface-wave arrivals, because large-amplitude NVT has been observed to be triggered by slow slip events associated with earth tides ...
7
Rheological profile across the NE Japan interplate megathrust in the source region of the 2011 Mw9 0 Tohoku oki earthquake
... al. 2011) for the Tohoku-oki earthquake demonstrated that the coseismic slip was largest at the hypocentral area corresponding to seg- ment b-c in Figure ...the 2011 earth- quake (Nishimura et ...
21
Variations of Geomagnetic Response Functions before the 2011 Tohoku Earthquake
... The variations of arg( A ) given by the bold solid line in Figure 5(b) are cleaned from periodic variations of annual and monthly periods, that make it more con- venient to identify EQ precursors. Indeed, we see a strong ...
15
Long period surface motion of the multi patch Mw9 0 Tohoku Oki earthquake
... the Tohoku- Oki event for periods ranging from 3 to 100s using Precise Point Positioning ...the 2011 Tohoku-Oki event is likely composed of multiple rupture patches as suggested before ...
38
Mitigating artifacts in back projection source imaging with implications for frequency dependent properties of the Tohoku Oki earthquake
... Motivated by the spatial complementarity between LF slip ( < 0.1 Hz) and HF slip ( ∼ 1 Hz), a number of studies (Koper et al., 2011a; Mori, 2011; Yao et al., 2011; Lay et al., 2012) attempted to probe ...
9
Rupture process of the largest aftershock of the M 9 Tohoku oki earthquake obtained from a back projection approach using the MeSO net data
... where substantial seismic energy, greater than 50% of the maximum value, was radiated at the main shock. On the other hand, the rupture area overlaps partly with the focal region of an M 7 earthquake that occurred on May ...
5
Coseismic Effects of the 2011 Magnitude 9 0 Tohoku Oki Earthquake Measured at Far East Russia Continental Coast by Gravity and GPS Methods
... [6] N. V. Shestakov, H. Takahashi, M. Ohzono, V. G. Bykov, M. D. Gerasimenko, A. S. Prytkov, V. A. Bormotov, M. N. Luneva, A. G. Kolomiets, G. N. Gerasimov, N. F. Vasilenko, J. Baek, P.-H. Park, A. A. Sorokin, V. F. Ba- ...
9