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Geodetic monitoring of the November 16, 2000 - New Ireland Earthquake

Tregoning, Paul; McQueen, Herbert; Lambeck, Kurt; Stanaway, Richard; Saunders, Steve; Itikarai, Ima; Nohou, John

Description

On 16 November 2000 a Magnitude 8.0 earthquake occurred off the west coast of New Ireland, north of the Duke of York Islands. The event, a major left-lateral strike-slip earthquake, ruptured the Weitin Fault over hundreds of kilometres and caused massive horizontal land movements in the Gazelle Peninsula and New Ireland. The earthquake occurred on the boundary between the Pacific and South Bismarck Plates and represents a release of strain that has built up over several decades during the...[Show more]

dc.contributor.authorTregoning, Paul
dc.contributor.authorMcQueen, Herbert
dc.contributor.authorLambeck, Kurt
dc.contributor.authorStanaway, Richard
dc.contributor.authorSaunders, Steve
dc.contributor.authorItikarai, Ima
dc.contributor.authorNohou, John
dc.date.accessioned2019-05-20T06:23:09Z
dc.date.available2019-05-20T06:23:09Z
dc.identifier.urihttp://hdl.handle.net/1885/162746
dc.description.abstractOn 16 November 2000 a Magnitude 8.0 earthquake occurred off the west coast of New Ireland, north of the Duke of York Islands. The event, a major left-lateral strike-slip earthquake, ruptured the Weitin Fault over hundreds of kilometres and caused massive horizontal land movements in the Gazelle Peninsula and New Ireland. The earthquake occurred on the boundary between the Pacific and South Bismarck Plates and represents a release of strain that has built up over several decades during the time that the plate boundary was locked. Measurements from a GPS monitoring network show co-seismic displacements ranging from 0.3 m in the west at Malasait to over 5.5 m near the fault at Weitin. Further to the east on the Pacific Plate, Lihir Island was displaced by 0.1m. Significant post-seismic relaxation has been observed at the continuously-operating GPS sites run by the Rabaul Volcano Observatory and at other sites in the Gazelle Peninsula and southern New Ireland. All pre-earthquake coordinate systems in the New Ireland/East New Britain regions (e.g. the PNG geodetic datum) will be distorted by amounts of up to 5m of more and some of this distortion is still continuing four months after the earthquake.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherThe Australian National University
dc.rights© 2001 The Author(s)
dc.titleGeodetic monitoring of the November 16, 2000 - New Ireland Earthquake
dc.typeReport
dc.date.issued2001
local.type.statusPublished Version
local.contributor.affiliationTregoning, P., Research School of Earth Sciences, The Australian National University
local.contributor.affiliationMcQueen, H., Research School of Earth Sciences, The Australian National University
local.contributor.affiliationLambeck, K., Research School of Earth Sciences, The Australian National University
local.contributor.affiliationStanaway, R., Research School of Earth Sciences, The Australian National University
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage29
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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