Seismic magnitude clustering is prevalent in field and laboratory catalogs.

ABSTRACT: Clustering of earthquake magnitudes is still actively debated, compared to well-established spatial and temporal clustering. Magnitude clustering is not currently implemented in earthquake forecasting but would be important if larger magnitude events are more likely to be followed by similar sized events. Here we show statistically significant magnitude clustering present in many different field and laboratory catalogs at a wide range of spatial scales (mm to 1000 km). It is universal in field catalogs across fault types and tectonic/induced settings, while laboratory results are unaffected by loading protocol or rock types and show temporal stability. The absence of clustering can be imposed by a global tensile stress, although clustering still occurs when isolating to triggered event pai

SUBMITTER: Xiong Q 

PROVIDER: S-EPMC10097663 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature