DOI: 10.1785/bssa0560010185. Difference between aftershocks and foreshocks in the relationship of magnitude to frequency of occurrence for the great Chilean earthquake of 1960

Difference between aftershocks and foreshocks in the relationship of magnitude to frequency of occurrence for the great Chilean earthquake of 1960

10.1785/bssa0560010185

Crossref journal-article

Seismological Society of America (SSA)

Bulletin of the Seismological Society of America (790)

Abstract

abstract When a relatively small perceptible earthquake occurred near a tripartite net of high sensitivity in central Japan, a substantial difference was found between its 25 foreshocks and 173 aftershocks in the relation of frequency of occurrence and magnitude. For that study the coefficient “b” in the magnitude versus frequency equation is 0.35 for the former and 0.76 for the latter. A similar investigation has been carried out on the great Chilean earthquake of 1960, also accompanied by many foreshocks and aftershocks. Using four sensitive and suitably located U.S.C.G.S. stations, Eureka, Tucson, South Pole, and Byrd, foreshocks and aftershocks were located in addition to those reported by U.S.C.G.S. or B.C.I.S. Forty-five foreshocks and 250 aftershocks were found in a period of 33 hours before and 33 hours after the main shock. The same characteristic found for the Japanese earthquake was also found for the Chilean earthquake; i.e. the foreshocks showed a different picture from the aftershocks for the frequency of occurrence, and an appreciably smaller value seems to be valid for “b” of the foreshocks.

Bibliography

Suyehiro, S. (1966). Difference between aftershocks and foreshocks in the relationship of magnitude to frequency of occurrence for the great Chilean earthquake of 1960. Bulletin of the Seismological Society of America, 56(1), 185â200.

Authors 1

Shigeji Suyehiro (first)

References 4 Referenced 68

{'key': '2021071415062840400_BIB1', 'article-title': 'Seismicity of the Earth', 'author': 'Gutenberg', 'year': '(1954)'} / Seismicity of the Earth by Gutenberg ((1954))
{'key': '2021071415062840400_BIB2', 'first-page': '595', 'article-title': 'The fracture of a semi-infinite body caused by an inner stress origin and its relation to the earthquake phenomena (Second Paper)', 'volume': '41', 'author': 'Mogi', 'year': '(1963)', 'journal-title': 'Bull. Earthq. Res. Inst.'} / Bull. Earthq. Res. Inst. / The fracture of a semi-infinite body caused by an inner stress origin and its relation to the earthquake phenomena (Second Paper) by Mogi ((1963))
10.2467/mripapers1950.15.1_71 / Meteor. and Geophys. / Foreshocks and aftershocks accompanying a perceptible earthquake by Suyehiro ((1964))
{'key': '2021071415062840400_BIB4', 'first-page': '10', 'article-title': 'A statistical study on the occurrence of small earthquakes (Fourth Paper)', 'volume': '11', 'author': 'Suzuki', 'year': '(1959)', 'journal-title': 'Science Reports of the Tohoku Univ., Ser. 5, Geophysics'} / Science Reports of the Tohoku Univ., Ser. 5, Geophysics / A statistical study on the occurrence of small earthquakes (Fourth Paper) by Suzuki ((1959))

Dates

Type	When
Created	4 years, 1 month ago (July 14, 2021, 11:06 a.m.)
Deposited	4 years, 1 month ago (July 14, 2021, 11:06 a.m.)
Indexed	11 months, 1 week ago (Sept. 20, 2024, 12:49 p.m.)
Issued	59 years, 6 months ago (Feb. 1, 1966)
Published	59 years, 6 months ago (Feb. 1, 1966)
Published Online	59 years, 6 months ago (Feb. 1, 1966)
Published Print	59 years, 6 months ago (Feb. 1, 1966)

Funders 0

None

BibTeX

@article{Suyehiro_1966, title={Difference between aftershocks and foreshocks in the relationship of magnitude to frequency of occurrence for the great Chilean earthquake of 1960}, volume={56}, ISSN={0037-1106}, url={http://dx.doi.org/10.1785/bssa0560010185}, DOI={10.1785/bssa0560010185}, number={1}, journal={Bulletin of the Seismological Society of America}, publisher={Seismological Society of America (SSA)}, author={Suyehiro, Shigeji}, year={1966}, month=feb, pages={185–200} }

JSON

{
  "indexed": {
    "date-parts": [
      [
        2024,
        9,
        20
      ]
    ],
    "date-time": "2024-09-20T16:49:01Z",
    "timestamp": 1726850941106
  },
  "reference-count": 4,
  "publisher": "Seismological Society of America (SSA)",
  "issue": "1",
  "content-domain": {
    "domain": [],
    "crossmark-restriction": false
  },
  "published-print": {
    "date-parts": [
      [
        1966,
        2,
        1
      ]
    ]
  },
  "abstract": "<jats:title>abstract</jats:title>\n               <jats:p>When a relatively small perceptible earthquake occurred near a tripartite net of high sensitivity in central Japan, a substantial difference was found between its 25 foreshocks and 173 aftershocks in the relation of frequency of occurrence and magnitude. For that study the coefficient \u201cb\u201d in the magnitude versus frequency equation is 0.35 for the former and 0.76 for the latter.</jats:p>\n               <jats:p>A similar investigation has been carried out on the great Chilean earthquake of 1960, also accompanied by many foreshocks and aftershocks. Using four sensitive and suitably located U.S.C.G.S. stations, Eureka, Tucson, South Pole, and Byrd, foreshocks and aftershocks were located in addition to those reported by U.S.C.G.S. or B.C.I.S. Forty-five foreshocks and 250 aftershocks were found in a period of 33 hours before and 33 hours after the main shock. The same characteristic found for the Japanese earthquake was also found for the Chilean earthquake; i.e. the foreshocks showed a different picture from the aftershocks for the frequency of occurrence, and an appreciably smaller value seems to be valid for \u201cb\u201d of the foreshocks.</jats:p>",
  "DOI": "10.1785/bssa0560010185",
  "type": "journal-article",
  "created": {
    "date-parts": [
      [
        2021,
        7,
        14
      ]
    ],
    "date-time": "2021-07-14T15:06:33Z",
    "timestamp": 1626275193000
  },
  "page": "185-200",
  "source": "Crossref",
  "is-referenced-by-count": 68,
  "title": "Difference between aftershocks and foreshocks in the relationship of magnitude to frequency of occurrence for the great Chilean earthquake of 1960",
  "prefix": "10.1785",
  "volume": "56",
  "author": [
    {
      "given": "Shigeji",
      "family": "Suyehiro",
      "sequence": "first",
      "affiliation": [
        {
          "name": "Carnegie Institution of Washington Department of Terrestrial Magnetism Washington, D.C."
        }
      ]
    }
  ],
  "member": "790",
  "published-online": {
    "date-parts": [
      [
        1966,
        2,
        1
      ]
    ]
  },
  "reference": [
    {
      "key": "2021071415062840400_BIB1",
      "article-title": "Seismicity of the Earth",
      "author": "Gutenberg",
      "year": "(1954)"
    },
    {
      "key": "2021071415062840400_BIB2",
      "first-page": "595",
      "article-title": "The fracture of a semi-infinite body caused by an inner stress origin and its relation to the earthquake phenomena (Second Paper)",
      "volume": "41",
      "author": "Mogi",
      "year": "(1963)",
      "journal-title": "Bull. Earthq. Res. Inst."
    },
    {
      "key": "2021071415062840400_BIB3",
      "doi-asserted-by": "crossref",
      "first-page": "71",
      "DOI": "10.2467/mripapers1950.15.1_71",
      "article-title": "Foreshocks and aftershocks accompanying a perceptible earthquake",
      "volume": "15",
      "author": "Suyehiro",
      "year": "(1964)",
      "journal-title": "Meteor. and Geophys."
    },
    {
      "key": "2021071415062840400_BIB4",
      "first-page": "10",
      "article-title": "A statistical study on the occurrence of small earthquakes (Fourth Paper)",
      "volume": "11",
      "author": "Suzuki",
      "year": "(1959)",
      "journal-title": "Science Reports of the Tohoku Univ., Ser. 5, Geophysics"
    }
  ],
  "container-title": "Bulletin of the Seismological Society of America",
  "original-title": [],
  "language": "en",
  "link": [
    {
      "URL": "http://pubs.geoscienceworld.org/ssa/bssa/article-pdf/56/1/185/5349185/bssa0560010185.pdf",
      "content-type": "application/pdf",
      "content-version": "vor",
      "intended-application": "syndication"
    },
    {
      "URL": "http://pubs.geoscienceworld.org/ssa/bssa/article-pdf/56/1/185/5349185/bssa0560010185.pdf",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "similarity-checking"
    }
  ],
  "deposited": {
    "date-parts": [
      [
        2021,
        7,
        14
      ]
    ],
    "date-time": "2021-07-14T15:06:38Z",
    "timestamp": 1626275198000
  },
  "score": 1,
  "resource": {
    "primary": {
      "URL": "https://pubs.geoscienceworld.org/bssa/article/56/1/185/101437/Difference-between-aftershocks-and-foreshocks-in"
    }
  },
  "subtitle": [],
  "short-title": [],
  "issued": {
    "date-parts": [
      [
        1966,
        2,
        1
      ]
    ]
  },
  "references-count": 4,
  "journal-issue": {
    "issue": "1",
    "published-online": {
      "date-parts": [
        [
          1966,
          2,
          1
        ]
      ]
    },
    "published-print": {
      "date-parts": [
        [
          1966,
          2,
          1
        ]
      ]
    }
  },
  "URL": "http://dx.doi.org/10.1785/BSSA0560010185",
  "relation": {},
  "ISSN": [
    "1943-3573",
    "0037-1106"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
      [
        1966,
        2
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        1966,
        2,
        1
      ]
    ]
  }
}