A STUDY ON FREQUENCY DISTRIBUTION OF EARTHQUAKE MAGNITUDE WITH RESPECTS TO DEPTH AND TIME

Twelve geographical regions are derived from data for the earthquakes of magnitudes larger than 4 which occurred in and near Japan from 1926 to 1956. A statistical test on null hypothesis is applied to a problem on correlations between magnitude and time, and the data for earthquakes is divided in each one of these twelve regions in two or three classes by next criterions, i.e. 0-30 km and 4-60 km depths and before, in, and after the year in which the largest earthquake occurred for these thirty one years. Some correlations were found between magnitude and depth for regions off Fukushima Perfecture and off Tokati, and between magnitude and time for every region.

• Corporate Authors:

  University of Tokyo

  Geophysical Institute
  Tokyo,   Japan 
• Authors:
  • Kurimoto, H
• Publication Date: 1961-9

Media Info

• Features: Figures; References; Tables;
• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Depth; Earthquakes; Frequency distributions; Magnitude; Statistical analysis; Time
• Subject Areas: Data and Information Technology; Geotechnology; Highways;

Filing Info

• Accession Number: 00081219
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 26 1975 12:00AM