Jiuxun Yin

Earthquake early warning (EEW) systems are crucial for mitigating seismic hazards. Current EEW algorithms predominantly rely on seismic data (Allen and Melgar, 2019) and can be classified into three main categories: point‐source, finite‐fault, and ground‐motion‐model based. Multiple algorithms and various data types are often integrated into one system to enhance accuracy.

Research Letter Earthquakes Within Earthquakes: Patterns in Rupture Complexity Marine A. Denolle Corresponding Author E-mail address: mdenolle@fas.harvard.edu https://orcid.org/0000-0002-1610-2250 Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, USA Search for more papers by this author PDF PDF Share Abstract Earthquake source time functions carry information about the complexity of seismic rupture.

We develop a methodology that combines compressive sensing back-projection (CS-BP) and source spectral analysis of teleseismic P waves to provide metrics relevant to earthquake dynamics of large events. We improve the CS-BP method by an auto-adaptive source grid refinement as well as a reference source adjustment technique to gain better spatial and temporal resolution of the locations of the radiated bursts.