Earth Science Frontiers ›› 2023, Vol. 30 ›› Issue (2): 548-560.DOI: 10.13745/j.esf.sf.2022.2.69
Received:
2021-12-20
Revised:
2022-02-22
Online:
2023-03-25
Published:
2023-01-05
CLC Number:
CHEN Bo. The clustering feature of time-space distributions of coal mine disasters and earthquake activities in China—an in-depth investigation[J]. Earth Science Frontiers, 2023, 30(2): 548-560.
Fig.1 Examples of clustering events of coal mine disasters accompanied by natural earthquakes plus microearthquakes (circles indicate clustering events between June 10-18, 2003). Earthquakes data from [4]; coal mine disasters data from [5]; fault lines data from [6].
Fig.2 Examples of clustering events of coal mine disasters accompanied by natural earthquakes (circles indicate “missing” cluster events between June 10-18, 2003). Data sources see Fig.1.
序列ID | 灾害ID | 其他 事件ID | 日期(2003-06-10—2003-06-18) | 距离/km | 间隔/d | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||||
495 | 2 338 | 2 343 | √ | 0 | 4 | ||||||||
2 343 | 2 338 | √ | 0 | 4 | |||||||||
497 | 2 348 | 2 367 | √ | 29.75 | 8 | ||||||||
2 367 | 2 348 | √ | 29.75 | 8 | |||||||||
498 | 2 350 | 2 374 | √ | 42.35 | 3 | ||||||||
2 374 | 2 350 | √ | 42.35 | 3 | |||||||||
499 | 2 352 | 2 351 | √ | 5.875 3 | 4 | ||||||||
-51 476 | √ | 26.88 | 4 | ||||||||||
2 351 | 2 352 | √ | 5.87 | 4 | |||||||||
-51 476 | √ | 26.13 | 4 | ||||||||||
500 | 2 358 | -51 803 | √ | 48.67 | 6 | ||||||||
-51 539 | √ | 11.95 | 6 | ||||||||||
-51 802 | √ | 35.63 | 6 | ||||||||||
-51 569 | √ | 41.19 | 6 | ||||||||||
502 | 2 359 | 2 361 | √ | 0 | 2 | ||||||||
2 370 | √ | 13.02 | 2 | ||||||||||
2 361 | 2 359 | √ | 0 | 2 | |||||||||
2 370 | √ | 13.02 | 2 | ||||||||||
2 370 | 2 359 | 13.02 | 2 | ||||||||||
2 361 | √ | 13.02 | 2 | ||||||||||
503 | 2 365 | -51 763 | √ | 33.59 | 1 | ||||||||
506 | 2 368 | 2 382 | √ | 16.09 | 5 | ||||||||
2 382 | 2 368 | √ | 16.09 | 5 |
Table 1 List of all earthquakes accompanying coal mine disasters for selected clustering events (microearthquake ID as negative numbers)
序列ID | 灾害ID | 其他 事件ID | 日期(2003-06-10—2003-06-18) | 距离/km | 间隔/d | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||||
495 | 2 338 | 2 343 | √ | 0 | 4 | ||||||||
2 343 | 2 338 | √ | 0 | 4 | |||||||||
497 | 2 348 | 2 367 | √ | 29.75 | 8 | ||||||||
2 367 | 2 348 | √ | 29.75 | 8 | |||||||||
498 | 2 350 | 2 374 | √ | 42.35 | 3 | ||||||||
2 374 | 2 350 | √ | 42.35 | 3 | |||||||||
499 | 2 352 | 2 351 | √ | 5.875 3 | 4 | ||||||||
-51 476 | √ | 26.88 | 4 | ||||||||||
2 351 | 2 352 | √ | 5.87 | 4 | |||||||||
-51 476 | √ | 26.13 | 4 | ||||||||||
500 | 2 358 | -51 803 | √ | 48.67 | 6 | ||||||||
-51 539 | √ | 11.95 | 6 | ||||||||||
-51 802 | √ | 35.63 | 6 | ||||||||||
-51 569 | √ | 41.19 | 6 | ||||||||||
502 | 2 359 | 2 361 | √ | 0 | 2 | ||||||||
2 370 | √ | 13.02 | 2 | ||||||||||
2 361 | 2 359 | √ | 0 | 2 | |||||||||
2 370 | √ | 13.02 | 2 | ||||||||||
2 370 | 2 359 | 13.02 | 2 | ||||||||||
2 361 | √ | 13.02 | 2 | ||||||||||
503 | 2 365 | -51 763 | √ | 33.59 | 1 | ||||||||
506 | 2 368 | 2 382 | √ | 16.09 | 5 | ||||||||
2 382 | 2 368 | √ | 16.09 | 5 |
Fig.7 Experimental data of spatial distribution features. Left: Spatial distribution diagram. Right: Distance-frequency distribution diagram over full distance range.
蔟序号 | 点序号 | X | Y | 蔟序号 | 点序号 | X | Y |
---|---|---|---|---|---|---|---|
S1 | 1 | 247 | 73 | S4 | 20 | 274 | 133 |
2 | 247 | 67 | 21 | 279 | 128 | ||
3 | 248 | 72 | 22 | 279 | 133 | ||
4 | 248 | 68 | 23 | 279 | 138 | ||
5 | 250 | 70 | 24 | 284 | 133 | ||
6 | 252 | 72 | S5 | 25 | 232 | 105 | |
7 | 252 | 68 | 26 | 237 | 100 | ||
8 | 253 | 73 | 27 | 237 | 105 | ||
9 | 253 | 67 | 28 | 237 | 110 | ||
S2 | 10 | 247 | 122 | 29 | 242 | 105 | |
11 | 247 | 118 | S6 | 30 | 301 | 54 | |
12 | 243 | 122 | 31 | 301 | 59 | ||
13 | 243 | 118 | 32 | 301 | 64 | ||
14 | 245 | 120 | 33 | 306 | 59 | ||
S3 | 15 | 286 | 103 | 34 | 311 | 74 | |
16 | 286 | 97 | 离散点 | 35 | 379 | 180 | |
17 | 289 | 100 | 36 | 296 | 59 | ||
18 | 292 | 103 | 37 | 289 | 143 | ||
19 | 292 | 97 | 38 | 279 | 153 | ||
离散点 | 40 | 267 | 90 | 39 | 257 | 100 |
Table 2 k-DIST experimental data
蔟序号 | 点序号 | X | Y | 蔟序号 | 点序号 | X | Y |
---|---|---|---|---|---|---|---|
S1 | 1 | 247 | 73 | S4 | 20 | 274 | 133 |
2 | 247 | 67 | 21 | 279 | 128 | ||
3 | 248 | 72 | 22 | 279 | 133 | ||
4 | 248 | 68 | 23 | 279 | 138 | ||
5 | 250 | 70 | 24 | 284 | 133 | ||
6 | 252 | 72 | S5 | 25 | 232 | 105 | |
7 | 252 | 68 | 26 | 237 | 100 | ||
8 | 253 | 73 | 27 | 237 | 105 | ||
9 | 253 | 67 | 28 | 237 | 110 | ||
S2 | 10 | 247 | 122 | 29 | 242 | 105 | |
11 | 247 | 118 | S6 | 30 | 301 | 54 | |
12 | 243 | 122 | 31 | 301 | 59 | ||
13 | 243 | 118 | 32 | 301 | 64 | ||
14 | 245 | 120 | 33 | 306 | 59 | ||
S3 | 15 | 286 | 103 | 34 | 311 | 74 | |
16 | 286 | 97 | 离散点 | 35 | 379 | 180 | |
17 | 289 | 100 | 36 | 296 | 59 | ||
18 | 292 | 103 | 37 | 289 | 143 | ||
19 | 292 | 97 | 38 | 279 | 153 | ||
离散点 | 40 | 267 | 90 | 39 | 257 | 100 |
方法 | 类型 | 空间阈值 | 时间阈值 |
---|---|---|---|
频率分布 | 全排列 | 27 km | 5 d |
半排列 | NULL | 7 d | |
k-DIST | 全排列 | 20 km | NULL |
半排列 | 50 km | 20 d | |
灾害事件最近邻居 | 24 km | 4 d |
Table 3 Summary of time-space thresholds using different methods and data
方法 | 类型 | 空间阈值 | 时间阈值 |
---|---|---|---|
频率分布 | 全排列 | 27 km | 5 d |
半排列 | NULL | 7 d | |
k-DIST | 全排列 | 20 km | NULL |
半排列 | 50 km | 20 d | |
灾害事件最近邻居 | 24 km | 4 d |
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