Ground shaking intensity and damage at Lake Coleridge power station in the 18 June 1994 Avoca River earthquake

Pattle, A.; Wood, J. H.

doi:10.5459/bnzsee.27.3.227-230

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…One of the most significant earthquakes in New Zealand in recent years occurred on June 18, near Arthur's Pass [Paterson and Bourne-Webb, 1994;Pattie and Wood, 1994]. Its Richter magnitude was 6.6, so it was very comparable to the damaging shock in Northridge, Los Angeles, on January 17 [Norton et al, 1994] .…”

Section: Principal Earthquakes In New Zealand In 1994 W D Smithmentioning

confidence: 99%

Principal earthquakes in New Zealand in 1994

Smith¹

1995

BNZSEE

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Section: Principal Earthquakes In New Zealand In 1994 W D Smithmentioning

confidence: 99%

Principal earthquakes in New Zealand in 1994

Smith¹

1995

BNZSEE

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“…General deterioration of stability of slope materials along the highway as a result of the earthquakes is being assessed in terms of possible effects on the Otira Viaduct, currently in the design phase, and planned highway upgrading of the partially single lane, Otira Gorge section. This paper describes highway damage and slope instability caused by the 29 May 1995 Arthur's Pass earthquake and compares the effects with those caused by the 18 June 1994 Arthur's Pass (Avoca River) earthquake [Berrill et al, 1995;Patterson and Bourne-Webb, 1994;Pattie and Wood, 1995;Van Dissen and Berryman, 1995]. Information for this paper was obtained during a survey of highway damage carried out for Works Consultancy Services on 30 May 1995, and ongoing engineering geological investigations associated with highway repair and slope stabilisation .…”

Section: Introductionmentioning

confidence: 99%

Damage to State Highway 73 from the 29 May 1995, Arthur's Pass earthquake

Paterson¹,

Berrill

1995

BNZSEE

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On 29 May 1995, a magnitude M 5.5 earthquake centred near Arthur's Pass caused considerable damage to State Highway 73 in Arthur's Pass National Park, almost a year after the highway was closed by a magnitude M 6.5 earthquake. Although earthquake magnitudes and epicentral locations for the two events accounted for some differences in extent and severity of slope failure and highway damage, the lower magnitude 1995 earthquake initiated significant rockfall above the Zig Zag, unaffected by the 1994 earthquake. The greater ground damage than anticipated at the Zig Zag and in Otira Gorge could be due more to direction of seismic wave propagation relative to Otira Valley, and predisposition of slope materials to failure, than to earthquake magnitude.

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Distribution of ground-motion intensity inferred from questionnaire survey, earthquake recordings, and microtremor measurements—A case study in Christchurch, New Zealand, during the 1994 arthurs pass earthquake

Toshinawa

Taber

Berrill

1997

Bulletin of the Seismological Society of America

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The areal distribution of seismic ground-motion intensity in the city of Christchurch, New Zealand, during the 1994 Arthurs Pass Earthquake (ML 6.6) was evaluated using an intensity questionnaire together with local site amplifications inferred from seismic recordings and microtremors. In order to estimate the intensity in parts of the city where no intensity data were available, intensity data were compared to relative levels of shaking determined from both weak-motion and microtremor recordings. Weak ground-motion amplification factors were determined using ratios of ground accelerations at five sediment sites with respect to a rock site. Microtremor amplification factors were determined from horizontal-to-vertical spectral ratios at a 1-km spacing throughout the city. A positive correlation between weak-motion and microtremor amplification factors allowed extrapolation of microtremor amplification to estimated MM intensity (EMMI). EMMI ranged from 3 to 6 and was consistent with the questionnaire intensity and geological conditions and showed detailed information on the areal distribution of ground-motion intensity in the city.

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Ground shaking intensity and damage at Lake Coleridge power station in the 18 June 1994 Avoca River earthquake

Cited by 3 publications

References 1 publication

Principal earthquakes in New Zealand in 1994

Principal earthquakes in New Zealand in 1994

Damage to State Highway 73 from the 29 May 1995, Arthur's Pass earthquake

Distribution of ground-motion intensity inferred from questionnaire survey, earthquake recordings, and microtremor measurements—A case study in Christchurch, New Zealand, during the 1994 arthurs pass earthquake

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