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Two aftershock observations were made for the 16 July 1990 Luzon earthquake (M_s=7.8). The first was made at twelve stations from Aug. 30 to Sep. 4. The temporary stations were set around the area of ground rupture and in the environs of Baguio City which experienced severe damage. Although the observation period was short, many aftershochs were recorded and 139 hypocenters were located. The aftershock distribution indicates two distinct clusters; one along the fualt of the main shock and the other in an area west, northwest of Baguio City. The latter cluster suggests the existence of a subfault(s) beneath the area around Baguio City. The second aftershock observations were made from Nov. 17 to Dec. 7 Seven stations were set, of which five were concentrated in the area around Baguio City in order to accurately determine the location of aftershocks in this region. Sixty-two aftershocks were located, evidence of the existence of a subfault(s). A secondary event(s) related to the subfault(s) is concluded to have caused the serious damage to the area around Baguio City.

収録刊行物

  • Journal of natural disaster science

    Journal of natural disaster science 13(1), 29-38, 1991-01-01

各種コード

  • NII論文ID(NAID)
    110002674159
  • NII書誌ID(NCID)
    AA10898116
  • 本文言語コード
    ENG
  • 資料種別
    Journal Article
  • ISSN
    03884090
  • データ提供元
    NII-ELS  IR 
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