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1.INTRODUCTIONAn abrupt natural calamity of this nature is an earthquake. Humans find it challenging to anticipate its development law. Once it happens, it will do terrible harm and have disastrous consequences. Because of earthquakes’ rapid beginning and expansion, the need for quick judgments, and the difficulty in acquiring information, we must employ unconventional approaches to deal with them [1]. Earthquake information management facilitates the use of science to make decisions, addresses public and media concerns, coordinates the orderly operation of each group, and provides pertinent information assistance for post-earthquake emergency rescue [2]. With the development of science and technology, the means of earthquake disaster reporting and collection are gradually diversified and automated, and the processing of disaster data is more intelligent [3]. In the Internet era, earthquake information is instrumentalized, modular, standardized, and quasi-real-time, allowing each unit to quickly respond to earthquakes and produce data such as focal mechanism solution and seismic intensity zoning [4] An average of 47,316 earthquakes with a magnitude greater than 1.0 occurred worldwide each year, with 4,041 of those earthquakes having a magnitude greater than 4.0, according to statistical analysis of the number of earthquakes at home and abroad tracked by the China Earthquake Networks from 2009 to 2015. Because they occur so frequently, people have an increased need for earthquake information. This is especially true when they experience an earthquake and are eager to learn where the epicenter is, how far away it is, how powerful it was, and how to escape it. Without timely information, it is simple to fuel the spread of earthquake stories, which can lead to panic and civil unrest. Therefore, it is crucial to build an earthquake information management system. This system’s primary goal is to collect all types of information data in a reliable manner, and it also performs earthquake risk analysis, damage assessment, and protection countermeasures. To lessen the impact of seismic disasters, a platform for the public to share earthquake information will be developed. It will offer zero-barrier, standardized, multi-level, and multi-means information services. Users will be able to access countrywide seismic information observation data, management, retrieval, download, visualization, and other specialized services. In the daily seismic information monitoring, but also after the occurrence of an earthquake, the occurrence and development of the process of real-time tracking, quick query of earthquake magnitude, earthquake time and other information. The system can also be used for earthquake-related knowledge dissemination, presentation, and demonstration in order to improve the informatization and modernization level of earthquake-prevention and disaster reduction activities. 2.DESIGN OF EARTHQUAKE INFORMATION MANAGEMENT SYSTEM2.1Demand analysisThe earthquake information management system should serve as a platform for information sharing. The system provides a convenient way to query information. In addition, the data can be exported locally for post-processing. Users can query the information they care about in accordance with their demands.The technology may display three aspects of the earthquake on the map to better visually depict it. Based on factors such as the local social economy, population, engineering of lifelines, etc, the system can produce findings for earthquake damage prediction. Following an earthquake, it is essential to enable the transfer of photos, images, monitoring data, text for negotiations, information on the catastrophe situation, and other details on the earthquake site. Give assistance for post-earthquake trend and introduction of earthquake background, local seismic geology, and historical earthquake scenario. In times of peace, the system can be used to publicize earthquake knowledge. 2.2Design idealThe following four requirements are typically present in an ideal information management system: identified information needs, information that can be gathered and processed, and information that can be made available to managers via programs [5]. Software with a C/S(Client/Server) structure has been susceptible to flaws and errors as Internet technology has advanced [6], including low security, network congestion, complex maintenance, upgrade issues, and other issues. The B/S structure is an alteration or enhancement of the C/S structure [7,8]. The user interface is implemented using the browser in this structure, a small portion of the transaction logic is implemented in the front end, and the majority of the transaction logic is implemented in the server side, establishing the so-called three-tier three-tier structure [9]. With current technology, the B/S structure’s network application is simpler to understand and less expensive than the C/S structure. The main benefit of using a B/S structure is that users don’t need to install any software or undergo any training to use it anytime, anywhere, and with only a browser [10,11]. After the emergence of cross-platform languages such as Java, B/S structure management software becomes more convenient, fast and effective. Therefore, using B/S structure to design the seismic information management system is in line with the current development trend of management software design. 2.3Functional designThe system is created utilizing the B/S framework, Java as the programming language, Eclipse as Java editing tools, and tools for editing interfaces, together with MySQL database software, in the form of web pages, to facilitate data interaction with users. Six functional modules make up the system: a login and registration page, an earthquake information management page, an earthquake information statistics page, a page for popularizing earthquake knowledge, a page for pertinent news about preventing earthquakes and other disasters, and a page for user feedback on opinions. 2.4The system structureFor various users, the system has functional components. The system’s performance and security needs are taken into account as well as the use of each function module. When a user signs in, it verifies their identity, offers security protection, and displays functional interfaces that are appropriate for their user roles. The system is divided into two types: administrators and regular users, depending on the actual demands of the users.To keep the system operating environment secure and to assure the accuracy of information and data, administrators carry out management tasks. This allows the system to run efficiently and without interruption. Users can access news, learn about popular science, examine information about earthquakes, and more. Users execute various duties for various jobs and have various rights. The flow chart of the seismic information management system is displayed in Figure 1 in order to more clearly convey the system’s business function module. 3.DESIGN OF EARTHQUAKE INFORMATION MANAGEMENT DATABASE3.1Conceptual structure designUse the E-R diagram to represent entities and entity relations in life, analyze the implementation functions of the system, and create the database and data table [12]. A bridge for communication between users and designers is the E-R diagram. The database entities employed in this system, such as administrator information entities, user information entities, earthquake information entities, knowledge science entities, and opinion feedback entities, are planned based on demand analysis and system design. Relational databases are designed using the relational normalization theory, which ensures that the relational schema is acceptable, that data redundancy is minimized, and that query performance is increased. E-r diagram of user information entity and earthquake information entity, as shown in Figure 2. 3.2Main data designThe structure of each table in the database and the design of each field in the table, which are directly related to the performance of the entire system and the processing speed of the program, are the fundamental components of database development [13]. The database contains all of the system’s tables, and it is where the attributes and fields of each table are entered. This system created its database with the aid of Navicat for MySQL database manager, and it is also capable of exporting and importing views of the database. Tables 1 and 2 show the structures of the user and seismic data tables, respectively. Table 1.User information data.
Table 2.Seismic information data.
4.EARTHQUAKE INFORMATION MANAGEMENT SYSTEM IMPLEMENTION4.1The login pageThe main purpose of the login page is to confirm the user’s user name and password. Users can log in by entering their own user name and password, which will be validated by the background service’s login verification service. The login page is seen in Figure 3. 4.2User/Administrator rightUser/authority management mainly realizes the management function of users using the system, including user add, delete, edit and authority control function, the authority is operated by the system administrator. User information includes user name, creation time and permission group, a comprehensive description of the users of the system, and all user information is saved in the MySQL database table for persistence, through the user’s add, delete, change, check operation update database, to achieve the consistency of users to the system. 4.3System main pageAfter logging into the earthquake information management system platform, you will see a window as shown in Figure 4. Each area of the application environment has a specific purpose before the system is used. Upon login in, the system’s interface primarily comprises the following features: system management, knowledge popularization, seismic information, statistics, feedback, and so forth. The administrator provides the knowledge scientific data. After verification, if the uploaded content information is incorrect, it can be quickly viewed, changed, or removed, and the user can access the pertinent content in the knowledge science column directly. The administrator is in charge of disseminating earthquake information, including updates on earthquake magnitude, location, kind, and degree of damage, as well as earthquake onset time, longitude, latitude, and depth. Additionally, the administrator has online editing and deletion rights for earthquake data. Users may easily obtain information on earthquakes based on the magnitude range of the earthquake, such as setting the earthquake below three, four or more earthquakes, five or more earthquakes, or more than six earthquakes; As shown in Figure 5, you may also look for information about earthquakes based on the time period in which they occurred. For example, you can look up information about earthquakes that occurred within the past 24 hours, the past week, the past month, or the past year. 5.SEISMIC INFORMATION MANAGEMENT SYSTEM TESTSystem testing’s primary goals are to determine whether the system can work normally, whether each functional module can be utilized as intended, and to quickly identify and fix any flaws or problems. The test’s objective is to thoroughly examine the entire system to determine whether all the intended functions have been accomplished. In order to verify the functionality of the system and quickly identify bugs and vulnerabilities, operators with various identities will be used to log in. By analyzing the feedback data from users with various levels of access, the system’s flaws are promptly fixed, making it more effective and able to accommodate the needs of users with various identifies. To identify the input and output directions of the software and examine the logical connections between them, two test methods—black box and white box—are utilized[14]. The query user test cases are shown in Table 4, and the system login and exit test cases are shown in Table 3. Table 3.Log in and out of cases.
Table 4.Query user test cases.
6.RESULTSIn this paper, the design and implementation of the seismic information management system are analyzed in detail, and the interface design of the software database and each function module is described in detail. The six functional modules that make up the system’s core functionality are the login and registration page, earthquake information management, statistics on earthquake information, popularization of earthquake knowledge, significant updates on earthquake preventive and disaster reduction, and opinion feedback.The system uses B/S architecture, uses Java language programming, MySQL database, and the system is tested. Users may immediately locate the earthquake magnitude, earthquake timing, and other information using the system’s data management, which has the advantages of simple operation, convenient management, and maintenance. It is more practical and dependable, and it can suit users’ requirements and expectations while also providing them with crucial information about earthquake prevention and disaster reduction. This promotes information interchange and the advancement of earthquake prevention and disaster reduction. AcknowledgmentsThis study was financially supported by the National Key Research and Development Programme of China (Grant NO 2019YFC1509504). REFERENCESShiping Lou, et al.,
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