1971 Solomon Islands earthquakes

Earthquakes in Papua New Guinea 1971 Solomon Islands earthquakes Papua New Guinea y doublet 1971-07-14 06:11:29 1971-07-26 01:23:22 782181 782684 iscgem782181 iscgem782684 16:11:29 11:23:22 b 6.0 y, s 7.8 y (ISC) 4w 8.0 (ANSS) b 6.6 y, s 7.7 y (ISC) 4w 8.1 (ANSS) A: 45 km on B: 37 km on A: IX B: VI 2 dead, 5 injured The 1971 Solomon Islands earthquakes occurred in the northern part of the Solomon Islands, within Papua New Guinea as a doublet earthquake. The first large shock occurred on July 14 at 06:11 UTC with a magnitude of w y 8.0. The second large event occurred on July 26 at 01:23 UTC with a magnitude of w 8.1. The initial event on July 14 caused a tsunami, which was observed in Rabaul.Spectral characterisation of tsunamis and seiches caused by tectonism and volcanism in Rabaul, Papua New Guinea 10.1023/a:1012274601026 C. Sinadinovsk M. Somerville K.F. McCue B. Talai 2001 Natural Hazards Kluwer Academic Publishers 24 3 285–294 128775056 The earthquake of July 26 triggered a tsunami with a 3.4 m on runup in New Britain.Tsunami newsletter – January 1996 http://itic.ioc-unesco.org/images/docs/1996_Jan.pdf ITIC 1996 International Tsunami Information Center 7 Shallow, large thrust earthquakes in the Solomon Islands tend to occur in multiplets. Examples of such earthquakes include the doublets occurred in 1971, 1974, and 1975. The 1971 doublet occurred at the junction of two trenches. The July 14 earthquake is located in the northwestern Solomon Islands Trench, while the July 26 earthquake ruptured the northeastern New Britain Trench. The July 14 earthquake and the July 26 earthquake were caused by the subduction of the Solomon Sea plate beneath the Pacific plate and the Bismark Sea Plate, respectively.Source process of the great 1971 Solomon Islands doublet http://deepblue.lib.umich.edu/bitstream/2027.42/27784/1/0000179.pdf S. Y. Schwartz Susan Schwartz T. Lay L. Ruff 1989 Physics of the Earth and Planetary Interiors Elsevier 56 3–4 294–310 10.1016/0031-9201(89)90164-7 1989PEPI...56..294S 2027.42/27784 The 1971 sequence had the largest earthquake in 50 years in this region as it occurred.Earthquake doublets in the Solomon Islands http://www.es.ucsc.edu/~thorne/TL.pdfs/LK_solomon_pepi80.pdf T. Lay Thorne Lay H. Kanamori Hiroo Kanamori 1980 Physics of the Earth and Planetary Interiors Elsevier 21 4 283–304 10.1016/0031-9201(80)90134-x 1980PEPI...21..283L See also List of earthquakes in 1971 List of earthquakes in Papua New Guinea List of earthquakes in the Solomon Islands References International Handbook of Earthquake & Engineering Seismology Part A, Volume 81A Global seismicity: 1900–1999 E. R. Engdahl A. Vallaseñor 2002 https://earthquake.usgs.gov/data/centennial/centennial.pdf Academic Press First 978-0124406520 682 Significant Earthquake Database https://www.ngdc.noaa.gov/nndc/struts/form?t=101650&s=1&d=1 https://web.archive.org/web/20060929000601/http://www.ngdc.noaa.gov/nndc/struts/form?t=101650&s=1&d=1 dead September 29, 2006 National Geophysical Data Center / World Data Service (NGDC/WDS) National Geophysical Data Center, NOAA 10.7289/V5TD9V7K 1972 Data Set External links 782181 Category:1971 earthquakes Category:1970s tsunamis Category:Megathrust earthquakes in the Solomon Islands Category:Earthquakes in Papua New Guinea Category:Tsunamis in Papua New Guinea Category:1971 disasters in Papua New Guinea Category:1971 disasters in Oceania