Spatial Variation of b-Values and Their Relationship with the Fault Blocks in the Western Part of the Tibetan Plateau and Its Surrounding Areas
<p>Tectonic map of the Tibet—Qinghai Plateau. The area is divided into different terrains [<a href="#B5-entropy-22-01016" class="html-bibr">5</a>].</p> "> Figure 2
<p>Map showing the fault zones along the margins of the blocks. The circles show earthquakes with different magnitudes ranging in size from M6.0 to M8.9, modified after Deng et al. 2014 [<a href="#B10-entropy-22-01016" class="html-bibr">10</a>]. Blocks labeled with an A constitute the Tibetan Plateau structural region or fault-block region; ANB is the north boundary zone of A, and AEB is the east boundary zone of A.</p> "> Figure 3
<p>Map showing the study area. The size and color of the circles show earthquakes with different magnitudes and different depths, respectively. The star shows the Gorkha earthquake with magnitude 8.2, which occurred in 2015.</p> "> Figure 4
<p>The cumulative number of earthquakes as a function of time. The stars show the earthquakes having a magnitude greater than 7.</p> "> Figure 5
<p>Depth (Km) histogram, hour-of-the-day histogram, magnitude histogram, and time (Year) histogram.</p> "> Figure 6
<p>Frequency-magnitude distribution (FMD) of the overall data catalog. The thin line represents the Gutenberg-Richter equation fit.</p> "> Figure 7
<p>A map of the <span class="html-italic">b</span>-value distribution and its relationship with the fault blocks in the study area. The star shows the Gorkha earthquake that occurred in 2015.</p> "> Figure 8
<p>Spatial variation of the <span class="html-italic">b</span>-value for Regions 1, 2, and 3. The stars in Regions 2 and 3 show the Gorkha earthquake that occurred in 2015.</p> "> Figure 9
<p>Map of the magnitude of completeness.</p> "> Figure 10
<p>Curve of <span class="html-italic">b</span>-value with depth in the study area.</p> ">
Abstract
:1. Introduction
2. Background of the b-Value
3. Previous Studies of b-Value in Tibet
4. Earthquake Data
5. Analysis Method
6. Results
7. Discussion
8. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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M | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.1 | 1.2 |
N | 2 | 4 | 10 | 16 | 15 | 20 | 37 | 41 | 64 | 76 | 107 | 119 |
M | 1.3 | 1.4 | 1.5 | 1.6 | 1.7 | 1.8 | 1.9 | 2.0 | 2.1 | 2.2 | 2.3 | 2.4 |
N | 111 | 174 | 156 | 214 | 208 | 212 | 235 | 223 | 209 | 220 | 212 | 187 |
M | 2.5 | 2.6 | 2.7 | 2.8 | 2.9 | 3.0 | 3.1 | 3.2 | 3.3 | 3.4 | 3.5 | 3.6 |
N | 172 | 145 | 129 | 98 | 91 | 76 | 66 | 55 | 41 | 35 | 47 | 53 |
M | 3.7 | 3.8 | 3.9 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5 | 4.6 | 4.7 | 4.8 |
N | 51 | 51 | 61 | 58 | 49 | 49 | 47 | 32 | 23 | 21 | 18 | 21 |
M | 4.9 | 5.0 | 5.1 | 5.2 | 5.3 | 5.4 | 5.5 | 5.6 | 5.7 | 5.8 | 5.9 | 6.0 |
N | 11 | 8 | 6 | 6 | 11 | 1 | 4 | 1 | 2 | 3 | 1 | 1 |
M | 6.3 | 6.5 | 6.9 | 7.1 | 7.2 | 7.7 | 8.2 | |||||
N | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
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Hussain, H.; Shuangxi, Z.; Usman, M.; Abid, M. Spatial Variation of b-Values and Their Relationship with the Fault Blocks in the Western Part of the Tibetan Plateau and Its Surrounding Areas. Entropy 2020, 22, 1016. https://doi.org/10.3390/e22091016
Hussain H, Shuangxi Z, Usman M, Abid M. Spatial Variation of b-Values and Their Relationship with the Fault Blocks in the Western Part of the Tibetan Plateau and Its Surrounding Areas. Entropy. 2020; 22(9):1016. https://doi.org/10.3390/e22091016
Chicago/Turabian StyleHussain, Hamid, Zhang Shuangxi, Muhammad Usman, and Muhammad Abid. 2020. "Spatial Variation of b-Values and Their Relationship with the Fault Blocks in the Western Part of the Tibetan Plateau and Its Surrounding Areas" Entropy 22, no. 9: 1016. https://doi.org/10.3390/e22091016