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August 16, 2025Bulletin of the Seismological Society of America

Relative Hypocenter Location Algorithm by Registering Past Earthquakes (hypoTD): Method and Application to Earthquakes Beneath the Japanese Islands

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Authors

SHShigeki HoriuchiInstitute of SeismologySWSatoshi WadaShowa UniversityYSYuko SatoTokyo University of Science

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Implication

New method improves hypocenter location for earthquakes, suggesting advantages over traditional hypoDD technique.

Key Points

  • The new method provides better constraints for hypocenter locations compared to the hypoDD method.
  • Hypocenters were relocated for 4.1 million earthquakes around the Japanese Islands over a 22-year period.
  • Comparative analysis shows enhanced precision in travel-time residuals with this new method.
  • Further studies could explore newer techniques like double-pair double-difference for improved results.

Cite This Study

Horiuchi et al. (2025) studied this question.

synapsesocial.com/papers/68a368780a429f797332d593https://doi.org/10.1785/0120240195
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