Nature and distribution of deformation across the Banda Arc–Australian collision zone at Timor

Karig, Daniel E.; Barber, Asa H.; Charlton, T.R.; Klemperer, S. L.; Hussong, Donald M.

doi:10.1130/0016-7606(1987)98<18:nadoda>2.0.co;2

Cited by 115 publications

(49 citation statements)

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“…However, seismic reflection profiles across the deformation front at the Seram, Tanimbar and Timor Troughs show thrust faults breaking all of the way to the surface (Schluter and Fritsch 1985;Karig et al 1987;Pairault et al 2003). We interpret the low seismic slip rates of the Banda collision zone as evidence of a locked plate boundary interface, which potentially could produce mega-thrust earthquakes.…”

Section: Tectonic Settingmentioning

confidence: 99%

Discovery of possible mega-thrust earthquake along the Seram Trough from records of 1629 tsunami in eastern Indonesian region

Liu

Harris

2013

Nat Hazards

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Arthur Wichmann's ''Earthquakes of the Indian Archipelago'' documents several large earthquakes and tsunami throughout the Banda Arc region that can be interpreted as mega-thrust events. However, the source regions of these events are not known. One of the largest and well-documented events in the catalog is the great earthquake and tsunami affecting the Banda Islands on August 1, 1629. It caused severe damage from a 15-m tsunami that arrived at the Banda Islands about a half hour after violent shaking stopped. The earthquake was also recorded 230 km away in Ambon, but no tsunami is mentioned. This event was followed by at least 9 years of uncommonly frequent seismic activity in the region that tapered off with time, which can be interpreted as aftershocks. The combination of these observations indicates that the earthquake was most likely a mega-thrust event. We use an inverse modeling approach to numerically reconstruct the tsunami, which constrains the likely location and magnitude of the 1629 earthquake. Only, linear numerical models are applied due to the low resolution of bathymetry in the Banda Islands and Ambon. Therefore, we apply various wave amplification factors (1.5-4) derived from simulations of recent, well-constrained tsunami to bracket the upper and lower limits of earthquake moment magnitudes for the event. 123Nat Hazards (2014) 72:1311-1328 DOI 10.1007 one earthquake [M w 8.0 is recorded instrumentally from the eastern Indonesia region although high rates of strain (50-80 mm/a) are measured across the Seram section of the Banda subduction zone. Enough strain has already accumulated since the last major historical event to produce an earthquake of similar size to the 1629 event. Due to the rapid population growth in coastal areas in this region, it is imperative that the most vulnerable coastal areas prepare accordingly.

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Section: Tectonic Settingmentioning

confidence: 99%

Discovery of possible mega-thrust earthquake along the Seram Trough from records of 1629 tsunami in eastern Indonesian region

Liu

Harris

2013

Nat Hazards

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“…In the Savu Basin at longitude 122 ° 30'E a S-N trending zone approximately 50 km wide occurs, where "individual features cannot be interpolated" (Karig et al 1987). East of this zone, in the South Savu Basin, basement ridges have been discovered trending SW-NE which probably can be followed onto the island of Timor.…”

Section: Outline Of the Sumba Fragmentmentioning

confidence: 99%

“…This thrust postdates the Pliocene strata of the basin (Reed et al 1986). Seismic reflection has shown that the North Sumba Ridge is built up of a basement of probably pre-Tertiary age covered by a thick sequence of sediments correlative with the Neogene deposits of Sumba (Karig et al 1987).…”

Section: Outline Of the Sumba Fragmentmentioning

confidence: 99%

Paleomagnetism of rocks from Sumba: tectonic implications since the late Cretaceous

Wensink

1994

Journal of Southeast Asian Earth Sciences

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“…Burg & Chen 1984) at collision time. This is certainly true today in the Caribbean realm (Dercourt et al 1993) and for the present day collision between Timor and Australia (Karig et al 1987). .…”

Section: Late-orogenic Extension -Detachment O F Lithospheric Rootsmentioning

confidence: 94%

Orogeny through time: an overview

Burg

Ford

1997

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Abstract:As an introduction to a diverse set of papers on orogenic studies we present a personal overview of the most notable developments in orogenic studies since the 1960s. The impact of new techniques such as deep reflection seismic profiling, geochronology, analogue and numerical modelling is discussed. The major geodynamic models and concepts which have stimulated orogenic studies in recent years are also considered.

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Nature and distribution of deformation across the Banda Arc–Australian collision zone at Timor

Cited by 115 publications

References 0 publications

Discovery of possible mega-thrust earthquake along the Seram Trough from records of 1629 tsunami in eastern Indonesian region

Discovery of possible mega-thrust earthquake along the Seram Trough from records of 1629 tsunami in eastern Indonesian region

Paleomagnetism of rocks from Sumba: tectonic implications since the late Cretaceous

Orogeny through time: an overview

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