This study focuses on the point source models of the significant foreshocks and aftershocks of the Kumamoto sequence. The centroid moment tensors (CMTs) for these events were inferred routinely by JMA and by National Research Institute for Earth Science and Disaster Resilience (NIED). However, th...
by altering spring locations, making streams disappear, or causing groundwater levels to drop temporarily or permanently. The study by Hosono et al. [2019] is unique because it provides a rare set of high frequency observations of groundwa...
Figure 1 shows the prefecture and its area classification subject to this analysis.1 The structure of this paper is as follows: the next section explains the damage and reconstruction of the earthquake for background and reviews previous literature. The third section describes the methodology for...
4. Although this figure still has a slightly large scatter, it is reasonable that a positive correlation between Δr c and m is comparable with the l a − m relation. The similar dependences on m indicate that the size of the spatial organization of seismicity is governed by the size ...
Additional file 1: Figure S1. Update history of the finite-fault models estimated by the REGARD system during the 2016 Kumamoto earthquake (M j 7.3) from top to bottom. Observed (black arrows) and predicted (white arrows) displacements for horizontal (left) and vertical (right) components are...
Figure 3b demonstrates the zoomed energy release rate around the origin time (0 s) of the April 14 (black) and the April 16 events (red). Integrating the energy release rate from −5 to 25 s, we estimate the cumulative energy release from the April 14 and the April 16 events as 2.7...
This figure was generated using the Generic Mapping Tools69 version 4.5.8 (http://gmt.soest.hawaii.edu). Full size image Figure 2 (a) Depth distribution of the upper interface of the subducting Philippine Sea slab in the study region. Its depth scale is shown at the bottom. The red ...
3). Figure 1 shows that the onset of the Oita earthquake occurred about 34 s after the origin time of the Kumamoto earthquake. Figure 2 shows the distribution of raw three-component PGA values recorded by the K-NET and KiK-net strong-motion networks and thought to be from the Kumamoto ...
Figure 8 shows results of these simulations displayed in two ways. The first uses the goodness-of-fit plots, averaged over 19 recording sites, that we have already discussed. The second uses maps of fault-normal (FN) and fault-parallel (FP) of peak ground motion velocity, and their ratio...
Figure 1 shows the spatial distribution of PGA and PGV observed by K-NET and KiK-net for M6.5 event. The PGA and PGV are calculated from the vector sum of the three components. A high-pass filtering with a corner period of 10 s is applied to velocity waveforms for PGV. The large ...