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06 August 2008 | dataset

The earthquake and tsunami of 1865 November 17: evidence for far-field tsunami hazard from Tonga

Historical reports of an earthquake in Tonga in 1865 November identify it as the only event from that subduction zone which generated a far-field tsunami observable without instruments.
Run-up heights reached 2 m in Rarotonga and 80 cm in the Marquesas Islands. Hydrodynamic simulations require a moment of 4 x 1028 dyn cm, a value significantly larger than previous
estimates of the maximum size of earthquake to be expected at the Tonga subduction zone. This warrants an upwards re evaluation of the tsunami risk from Tonga to the Cook Islands
and the various Polynesian chains, which had hitherto been regarded as minor.

Available online

Call Number: [EL]

Physical Description: 11 Pages

Field Value
Publisher University of Southern California
Modified 15 February 2022
Release Date 06 August 2008
Source URLā€¦
Identifier VL-34807
Spatial / Geographical Coverage Location Pacific Region
Relevant Countries Pacific Region
License Public
[Open Data]
Contact Name SPREP Records and Archives Officer
Contact Email [email protected]