1977 Tonga earthquake

Natural disaster in Tonga 1977 Tonga earthquake Oceania 1977-06-22 12:08:33 697569 iscgem697569 1977 06 23 yes 01:08:33 8.0 w y 55 km mi on 22.89 S 175.71 W region:ID_type:event inline,title Normal VIII yes The 1977 Tonga earthquake took place on 23 June at 01:08:33 local time 22 June 1977 at 12:08:33 UTC some 200 km southwest of Tongatapu, with shocks affecting all islands of the kingdom of Tonga. The earthquake measured 8.0 on the moment magnitude scale and had a maximum intensity of VIII (Severe) on the Mercalli intensity scale. The earthquake caused considerable damage to the infrastructures and some fatalities in most Tongan islands, with the most damage in Tongatapu and ʻEua and the least damage in Ha'apai and Vava'u. See also List of earthquakes in 1977 List of earthquakes in Tonga Louisville Ridge References ISC-GEM Global Instrumental Earthquake Catalogue (1900–2013) http://www.isc.ac.uk/iscgem/index.php ISC 2017 International Seismological Centre Version 4.0 PAGER-CAT Earthquake Catalog https://earthquake.usgs.gov/static/lfs/data/pager/catalogs/ September 4, 2009 United States Geological Survey Version 2008_06.1 http://www.nzsee.org.nz/db/Bulletin/Archive/10(4)0208.pdf The Tonga earthquake of 23 June, 1977 – some initial observations M. D. Campbell G. R. McKay R. L. Williams 1977 Bulletin of the New Zealand National Society for Earthquake Engineering 10 4 208–218 10.5459/bnzsee.10.4.208-218 http://iisee.kenken.go.jp/net/hara/tonga/comments.htm iisee.kenken.go.jp Earthquakes in Tonga 10 September 2017 Further reading Evaluation of seismic risk in the Tonga–Fiji–Vanuatu region of the southwest Pacific https://pdf.usaid.gov/pdf_docs/PNABF389.pdf https://web.archive.org/web/20170222032502/http://pdf.usaid.gov/pdf_docs/PNABF389.pdf dead February 22, 2017 A country report: Tonga J. L. Kruger-Knuepfer M. W. Hamburger B. L. Isacks M. Barazangi J. Kelleher G. Hade 1986 External links 697569 Category:Earthquakes in Tonga Category:1977 earthquakes Category:1977 in Tonga Category:1977 disasters in Oceania