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DBT104-2025: Specification for the research report of annual earthquake tendency
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| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| DB/T 104-2025 | English | 379 |
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Specification for the research report of annual earthquake tendency
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Basic data | Standard ID | DB/T 104-2025 (DB/T104-2025) | | Description (Translated English) | Specification for the research report of annual earthquake tendency | | Sector / Industry | Chinese Industry Standard (Recommended) | | Classification of Chinese Standard | P15 | | Classification of International Standard | 91.120.25 | | Date of Issue | 2025-07-31 | | Date of Implementation | 2026-01-01 | | Issuing agency(ies) | China Earthquake Administration | DB/T 104-2025: Specification for the research report of annual earthquake tendency---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Published on 2025-07-31
Implemented on 2026-01-01
CCS P 15
ICS 91.120.25
Annual Earthquake Trend Research Report Writing Guidelines
Earthquake Industry Standards of the People's Republic of China
China Earthquake Administration issued a statement.
Preface III
Introduction IV
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Symbols and Abbreviations 1
5.Basic Provisions 1
6.Contents of the Annual Earthquake Trend Research Report 3
6.1 Components of the Annual Earthquake Trend Research Report (3)
6.2 Cover 3
6.3 Review Comments 3
6.4 Table of Contents 3
6.5 Main Text 3
6.6 Appendix 5
6.7 Appendix 6
7.Format and Length Requirements for Annual Earthquake Trend Research Reports 6.
7.1 Cover Requirements 6
7.2 Review Comments Format 6
7.3 Table of Contents Format 6
7.4 Text Format 6
7.5 Reference Format 7
7.6 Length Requirements 7
Appendix A (Normative) Requirements for Compiling Registration Forms for Anomalies from Seismological, Fixed-Point Geophysical Observations, and Regional Geophysical Observations 8
A.1 Seismic Anomaly Registration Form 8
A.2 Registration Form for Fixed-Point Geophysical Observation Anomalies 9
A.3 Regional Geophysical Observation Anomaly Registration Form 9
Reference 11
Table of contents
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Earthquake Administration.
This document is under the jurisdiction of the Technical Committee on Standardization of Earthquake Monitoring and Forecasting.
This document was drafted by the following organizations. China Earthquake Networks Center, Beijing Municipal Earthquake Bureau, Anhui Provincial Earthquake Bureau, and the First Monitoring Center of China Earthquake Administration.
The main drafters of this document are. Yan Rui, Yan Wei, Liu Guiping, Jiang Haikun, Wang Xingzhou, Guo Fei, Li Lingli, Zhou Kechang, Zhao Jun, and Meng Qingxiao.
Introduction
The annual earthquake trend research report is an important output of the annual earthquake trend consultation meeting, and it is a national annual earthquake trend assessment and key earthquake report.
A crucial foundation for identifying danger zones. Standardized procedures for improving the scientific rigor of annual earthquake trend studies and compiling annual earthquake trend study reports.
Therefore, it is necessary to specify the content and format of the annual earthquake trend research report. This document takes my country's annual earthquake trend as an example.
Based on research and summarizing the content of annual earthquake trend research reports compiled over the years, this paper presents the annual earthquake trend research report.
The document outlines the basic requirements, content, and format for the compilation of annual earthquake trend studies, aiming to improve the scientific rigor and standardization of these studies.
Play a positive role.
Annual Earthquake Trend Research Report Writing Guidelines
1 Scope
This document specifies the content and format requirements for the annual earthquake trend study report.
This document applies to the preparation of annual earthquake trend research reports by units directly under the China Earthquake Administration and provincial earthquake bureaus.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. For dated references,
Only the version corresponding to this date applies to this document; for undated references, the latest version (including all amendments) applies to this document.
GB/T 18207 (All Parts) Terminology for Earthquake Prevention and Disaster Reduction
GB/T 30534-2014 Confidentiality Level Codes and Identifiers for Scientific and Technological Reports
3 Terms and Definitions
The terms and definitions defined in GB/T 18207 (all parts) and the following terms and definitions apply to this document.
3.1
Annual earthquake key hazard area
Within the next year, Sichuan, Chongqing, Guizhou, Yunnan, Tibet, Shaanxi, Gansu, Xinjiang, Qinghai, Ningxia, and Taiwan in my country may experience typhoons of magnitude 5.5 or higher.
The upper and other areas where earthquakes of magnitude 5.0 or higher may occur.
3.2
predictive efficiency test
The predictive effectiveness of the prediction results is statistically analyzed based on parameters such as accuracy rate, false negative rate, spatiotemporal occupancy rate, anomaly correspondence rate, and false alarm rate.
The testing process.
Note. Accuracy rate refers to the proportion of correctly predicted earthquakes out of the total number of actual earthquakes; underreporting rate refers to the proportion of underreported earthquakes out of the total number of actual earthquakes; time
Occupancy rate refers to the proportion of time or space occupied by predictive behavior to the total study time or space; anomaly response rate refers to the proportion of the number of earthquake anomalies reported to that category.
The percentage of total anomalies; the false positive rate refers to the percentage of anomalies with incorrect predictions out of the total number of anomalies of that type.
4.Symbols and Abbreviations
4.1 The following symbols apply to this document.
MS. Surface wave magnitude.
4.2 The following abbreviations apply to this document.
GNSS. Global Navigation Satellite System
5 Basic Provisions
5.1 The annual list of key earthquake hazard zones should include the name of the hazard zone and the predicted magnitude range. The names of the hazard zones should use the two county-level names with the largest span.
The administrative region is named.
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