Real-Time Seismic Intensity Measurements Prediction for Earthquake Early Warning: A Systematic Literature Review

Area of Science:

• Earthquake Science
• Seismology
• Geophysics

Background:

• Advancements in earthquake early warning systems (EEWS) necessitate improved real-time seismic intensity measurements (IMs).
• Traditional point source warning systems struggle with accurate IMs prediction and impact range assessment.
• Understanding earthquake source parameters and rupture behavior is key to enhancing EEWS.

Purpose of the Study:

• To review and analyze current real-time seismic intensity measurement methods for earthquake early warning systems.
• To explore the state-of-the-art in predicting earthquake source parameters and rupture behaviors.
• To evaluate the application of finite fault models and simulated seismic wave fields in IMs predictions.

Main Methods:

• Analysis of different perspectives on ultimate earthquake magnitude and rupture initiation.
• Summarization of progress in IMs predictions for regional and field warnings.
• Evaluation of finite fault models and simulated seismic wave fields for IMs prediction.
• Discussion of IMs evaluation methods focusing on algorithm accuracy and alert costs.

Main Results:

• Real-time IMs prediction methods are diversifying.
• Integration of various warning algorithms and seismic station configurations is a key trend.
• Finite fault models and simulated seismic wave fields show promise for IMs prediction.

Conclusions:

• Real-time IMs prediction methods are diversifying.
• Integration of diverse warning algorithms and seismic station configurations is a future trend for EEWS.
• Enhanced IMs accuracy and cost-effectiveness are vital for effective earthquake warnings.