中长期地震预测中的PI算法改进研究及应用

地震 ›› 2012, Vol. 32 ›› Issue (4): 44-52.

中长期地震预测中的PI算法改进研究及应用

孙丽娜, 齐玉妍, 温超, 张合

河北省地震局, 河北石家庄 050021

收稿日期:2012-02-23 修回日期:2012-04-06 发布日期:2021-08-19
作者简介:孙丽娜 (1982-), 女, 河北石家庄人, 硕士, 主要从事地震中长期预测等研究。
基金资助:
国家科技支撑计划项目(2008BAC44B02)和河北省地震局“硕博预研究项目”资助

Application of Improved PI Algorithm in Medium to Long-term Earthquake Prediction

SUN Li-na, QIN Yu-yan, WEN Chao, ZHANG He

Earthquake Administration of Hebei Province, Shijiazhuang 050021, China

Received:2012-02-23 Revised:2012-04-06 Published:2021-08-19

摘要/Abstract

摘要： 图像信息学PI(Pattern Informatics)算法是一种基于统计物理学的地震预测新方法, 近年来得到了较大发展。本文探索把此方法与地震活动性网格点密集值方法相结合, 并尝试用于华北地区中长期地震预测。在预测中, 使用1970—2011年M_L≥3.0区域地震目录, 针对M_S≥5.0预测“目标震级”, 采用15年尺度的地震目录滑动时间窗, 均为3年尺度的地震活动“异常学习”时段和“预测时间窗”, 结合一定时空及震级范围内地震的数量和震中分布因素, 进行地震危险性概率计算。对该方法的预测效果使用Molchan图表法进行统计检验。结果表明, 此方法在某些方面优于PI算法, 且在地震趋势分析和中长期预测方面有较好的应用潜力。

关键词: 图像信息学, 地震空间密集, 中长期地震预测, Molchan检验

Abstract: Pattern informatics(PI) method is a new way to forecast earthquake based on statistical physics, which has seen great development in recent years. In this paper, this method, combined with the method of density at grid nodes of seismic activity, which is used to study the prediction of long-term prediction in north China. The probibilitic results of future seismic evaluation of the occurrence of M_L≥5.0 earthquakes has been shown based on the data of M_L≥3.0 events in earthquake catalog from 1970 to 2011, time window of 16 years, 3 years of “anomalous investigation” and “prediction time term” and combinated with some factors, such as earthquakes numbers in the space-time and magnitude range and distribution of the events. The statistic investigation for the prediction ability is shown by Molchan chart method. It is shown that this combined method is better than PI method in some aspects and could be applied in the analysis of the future seismicity and middle to long term prediction.

Key words: Pattern informatics, Earthquake space concentration, Long-term earthquake forecast, Molchan test

中图分类号:

P315.7

孙丽娜, 齐玉妍, 温超, 张合. 中长期地震预测中的PI算法改进研究及应用[J]. 地震, 2012, 32(4): 44-52.

SUN Li-na, QIN Yu-yan, WEN Chao, ZHANG He. Application of Improved PI Algorithm in Medium to Long-term Earthquake Prediction[J]. EARTHQUAKE, 2012, 32(4): 44-52.

参考文献

[1] 吴忠良, 陈运泰. 地震预测与统计物理[J]. 物理, 2002, 31(1): 365-371.
[2] Rundle J B, Klein W, Turcotte D L, et al. Precursory seismic activation and critical-point phenomena[J]. Pure appl Geophys, 2000, 157: 2165-2182.
[3] Rundle J B, Turcotte D L, Shcherbakov R, et al. Statistical physics approach to understanding the multiscale dynamics of earthquake fault systems[J]. Rev Geophys, 2003, 41(4): 1019, doi:10.1029/2003RG000135.
[4] Tiampo K F, Rundle J B, McGinnis S, et al. Mean-field threshold systems and phase dynamics: An application to earthquake fault systems[J]. Europhys Lett, 2002, 60: 481-487.
[5] Nanjo K Z, Rundle J B, Holliday J R, et al. Pattern informatics and its application for optimal forecasting of large earthquakes in Japan[J]. Pure appl Geophys, 2006, 163: 2417-2432.
[6] Field E D, eds. Special Issue-Regional Earthquake Likelihood Models[J]. Seism Res Lett, 2007. 78: 1-140.
[7] Rundle J B, Tiampo K F, Klein W, et al. Self-organization in leaky threshold systems: The influence of near mean field dynamics and its implications for earthquakes, neurobiology, and forecasting[J]. Proc Natl Acad Sci U S A, 2002, 99(Suppl.1): 2514-2521.
[8] Swets J A. The relative operating characteristic in psychology[J]. Science, 1973, 182: 990-1000.
[9] Keilis-Borok V I, Rotwain I M. Diagnosis of time of increased probability of strong earthquakes in deferent regions of the world[J]. Phys Earth Planet Inter, 1990, 61: 57-72.
[10] Nanjo K Z, Rundle J B, Holliday J R, et al. Pattern informatics and its application for optimal forecasting of large earthquakes in Japan[J]. Pure Appl Geophys, 2006, 163: 2417-2432.
[11] Chen C C, Rundle J B, Holliday J R, et al. The 1999 Chi-Chi, Taiwan, earthquake as a typical example of seismic activation and quiescence[J]. Geophys Res Lett, 2005, 32: L22315, doi: 10.1029/2005GL023991.
[12] 蒋长胜, 吴忠良. 对地震预测的一个统计物理算法在川滇地区的回溯性预测检验[J]. 中国科学: D辑, 2008, 38(7): 852-861.
[13] Jiang C S, Wu Z L. PI forecast with or without de-clustering: an experiment for the Sichuan-Yunnan region[J]. Nat Hazards Earth Syst Sci, 2011, 11: 697-706.
[14] Jiang C S, Wu Z L. PI forecast for the Sichuan-Yunnan region: retrospective test after the May 12, 2008, Wechuan Earthquake. Pure appl[J]. Geophys, 2010, 167(6/7): 751-761.
[15] Wu Y H, Chen C, Rundle J B. Detecting precursory earthquake migration patterns using the pattern informatics method[J]. Geophys Res Lett, 2008, 35: L19304, doi:10.1029/2008GL035215.
[16] Zhang Y X, Zhang X T, Wu Y J, et al. Retrospective study on the predictability of Pattern Informatics to the Wenchuan M8.0 and Yutian M7.3 earthquakes[J]. Pure appl Geophys, 2012, 169, doi: 10.1007/s00024-011-0444-6.
[17] Tiampo K F, Scherbakov R. Optimization of seismicity-based forecasts[J]. Pure appl Geophys, 2012, 169, doi: 10.1007/s00024-012-0457-9.
[18] 王健. 地震活动性图像处理的网格点密集值计算方法[J]. 地震学报, 2001, 23(3): 262-267.
[19] 李垒林, 陈锦标, 于渌等. b值时空扫描监视破坏性地震孕育过程的一种手段[J]. 地球物理学报, 1978, 21(2): 101-128.
[20] 马鸿庆. 华北地区几次太震前的纠直异常变化[J]. 地球物理学报, 1978, 21(2): 126-141.
[21] Yamashina K. Trial of earthquake prediction in Japan and a statistical test of time-shift[J]. Tectono-physics, 2006, 417(12): 169-182.
[22] Schorlemmer D, Zechar J D, W erner M J, et al. First results of the regional earthquake likelihood models experiment[J]. Pure and Appl Geophys, 2010, 167(8): 859-876.
[23] Schorlemmer D, Gerstenberger M C. REI M Testing Center[J]. Seismol Res Lett, 2007, 78: 30-36.
[24] Molchan G M. Strategies in strong earthquake prediction[J]. Phys Earth Plane Inter, 1990, 61(1-2): 84-98.
[25] Molchan G M. Structure of optimal strategies of earthquake prediction[J]. Tectonophysics, 1991, 193: 267-276.
[26] Molchan G M. Earthquake prediction as a decision making problem[J]. Pure and Appl Geophys, 1997, 149: 233-247.
[27] Molchan G M. Space time earthquake prediction:the error diagrams[J]. Pure and Appl Geophys, 2010, 167: 907-917.
[28] Zechar J D, Jordan T H. Testing alarm-based earthquake predictions[J]. Geophys J Int, 2008, 172: 715-724.
[29] 蒋长胜, 张浪平. 中长期地震危险性概率预测中的统计检验方法Ⅰ: Molchan图表法[J]. 地震, 2011, 31(2): 106-113.
[30] Jackson D D. Earthquake prediction and forecasting[M]. In: IUGG, eds State of the Planet: Frontiers and Challenges. Washington DC: AGU, 2004. 225-348.