Long-Term Perspectives on Giant Earthquakes and Tsunamis at Subduction Zones

Details Long-Term Perspectives on Giant Earthquakes and Tsunamis at Subduction Zones Long-Term Perspectives on Giant Earthquakes and Tsunamis at Subduction Zones

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007areps..35..349s&link_type=abstract

Annual Review of Earth and Planetary Sciences, vol. 35, Issue 1, p.349-374

Mathematics

Logic

15

Scientific paper

Histories of earthquakes and tsunamis, inferred from geological evidence, aid in anticipating future catastrophes. This natural warning system now influences building codes and tsunami planning in the United States, Canada, and Japan, particularly where geology demonstrates the past occurrence of earthquakes and tsunamis larger than those known from written and instrumental records. Under favorable circumstances, paleoseismology can thus provide long-term advisories of unusually large tsunamis. The extraordinary Indian Ocean tsunami of 2004 resulted from a fault rupture more than 1000 km in length that included and dwarfed fault patches that had broken historically during lesser shocks. Such variation in rupture mode, known from written history at a few subduction zones, is also characteristic of earthquake histories inferred from geology on the Pacific Rim.

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