- PII
- S3034530825050088-1
- DOI
- 10.7868/S3034530825050088
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume / Issue number 5
- Pages
- 104-115
- Abstract
- A crustal earthquake and its aftershocks that occurred in Japan (Mw = 7,5, 01.01.2024) were studied to make measurements and analyze the parameters of strong ground motion, including the Arias intensity. The latter is one of the key physical parameters used in engineering seismology. The level of the Arias intensity is directly connected with the stress drop in an earthquake source. Therefore, developing and calibrating a magnitude scale that would take into account not only fault dimensions, but also the stress drop in an earthquake source is a vital task of seismological observations. In this paper we present our test results of a new magnitude scale (MIa3) based on a modified Arias intensity. The scale was calibrated to medium and moderate earthquakes in the target area (M ~5). The high efficiency of the proposed scale is evidenced by the magnitudes, determined through the new method, that are almost consistent with the moment magnitude (Mw).
- Keywords
- магнитуда землетрясение сброшенное напряжение интенсивность по Ариасу тектоника
- Date of publication
- 01.10.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 17
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