Morphology and slip rate of the Hurunui section of the Hope Fault, South Island, New Zealand

Langridge, R.; Berryman, Kelvin

doi:10.1080/00288306.2005.9515097

Cited by 58 publications

(91 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The characteristics of the Wairau Fault are broadly similar to those of the other Marlborough faults, with the exception of the Hope Fault, which has a greater slip rate, shorter recurrence interval, and, in some sections, somewhat smaller slip per event (Cowan 1990;Cowan & McGlone 1991;VanDissen & Yeats 1991;Knuepfer 1992;Langridge et al 2003;Langridge & Berryman 2005). The average recurrence interval range of 1150-1400 yr for the Wairau Fault is similar to that of the Clarence Fault (av.…”

Section: Regional Implicationsmentioning

confidence: 53%

“…The Hope Fault, with a slip rate of up to 23 ± 4 mm/yr near its eastern end (Langridge et al 2003), carries most of the strain transferred from the Alpine Fault. It has single-event displacements of up to 5-6 m and a recurrence interval of c. 180-490 yr, shown along several segments of the fault (Cowan 1990;Cowan & McGlone 1991;Van Dissen& Yeats 1991;Knuepfer 1992;Langridge et al 2003;Langridge & Berryman 2005). Towards the east coast, most of the slip rate on the Hope Fault appears to splay NNE onto the Jordan Thrust and Kekerengu Fault (Fig.…”

Section: Tectonic Settingmentioning

confidence: 99%

See 1 more Smart Citation

Timing of late Holocene surface rupture of the Wairau Fault, Marlborough, New Zealand

Zachariasen

Berryman

Langridge³

et al. 2006

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

Three trenches excavated across the central portion of the right-lateral strike-slip Wairau Fault in South Island, New Zealand, exposed a complex set of fault strands that have displaced a sequence of late Holocene alluvial and colluvial deposits. Abundant charcoal fragments provide age control for various stratigraphic horizons dating back to c. 5610 yr ago. Faulting relations from the Wadsworth trench show that the most recent surface rupture event occurred at least 1290 yr and at most 2740 yr ago. Drowned trees in landslide-dammed Lake Chalice, in combination with charcoal from the base of an unfaulted colluvial wedge at Wadsworth trench, suggest a narrower time bracket for this event of 1811-2301 cal. yr BP The penultimate faulting event occurred between c. 2370 and 3380 yr, and possibly near 2680 ± 60 cal. yr BP, when data from both the Wadsworth and Dillon trenches are combined. Two older events have been recognised from Dillon trench but remain poorly dated. A probable elapsed time of at least 1811 yr since the last surface rupture, and an average slip rate estimate for the Wairau Fault of 3-5 mm/yr, suggests that at least 5.4 m and up to 11.5 m of elastic shear strain has accumulated since the last rupture. This is near to or greater than the single-event displacement estimates of 5-7 m. The average recurrence interval for surface rupture of the fault determined from the trench data is 1150-1400 yr. Although the uncertainties in the timing of faulting events and variability in inter-event times remain high, the time elapsed since the last event is in the order of 1-2 times the average recurrence interval, implying that the Wairau Fault is near the end of its interseismic period.

show abstract

Section: Regional Implicationsmentioning

confidence: 53%

Section: Tectonic Settingmentioning

confidence: 99%

Timing of late Holocene surface rupture of the Wairau Fault, Marlborough, New Zealand

Zachariasen

Berryman

Langridge³

et al. 2006

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

show abstract

“…The Hurunui segment of the Hope fault is a straight, 42-km-long, ENE-striking geomorphic fault segment, which in the east terminates at the Hope-Boyle Basin or a nearby fault bend (Cowan, 1991;Langridge and Berryman, 2005). It western end is defi ned by the bifurcation of the fault near the Main Divide, which is the east-west drainage divide of the South Island.…”

Section: Introductionmentioning

confidence: 99%

Timing of late Holocene paleoearthquakes on the Hurunui segment of the Hope fault: Implications for plate boundary strain release through South Island, New Zealand

Langridge

Almond

Duncan

2013

Geological Society of America Bulletin

Self Cite

View full text Add to dashboard Cite

The Hurunui segment of the dextral-slip Hope fault extends for ~42 km between the Hope and Hurunui River catchments and westward to Harper Pass at the Main Divide of South Island. We conducted paleo seismic, soil, and landscape dating studies in the upper Hurunui valley to determine the timing of past earthquake ruptures along this geometric fault segment. On a late Holo cene alluvial surface at Matagouri Flat, a young channel system is displaced dextrally by ~4.5 ± 0.6 m, which is attributed to the most recent faulting event. A trench and soil pits excavated nearby yield evidence for the timing of the last two surface-faulting events. These events, dated from a combination of radiocarbon dates, relative soil, tree, and historical constraints, modifi ed within an OxCal analysis, occurred at ca. A.D. 1655-1835 and 1425-1625. The occurrence of two rupture events during the last ~600 yr is consistent with previous estimates stating a short recurrence interval for the Hurunui segment. The most recent faulting event in our trenches predates the historic 1888 North Canterbury (Amuri) earthquake, which ruptured the Hope River segment to the east. A comparison of the record from the Hurunui segment with paleoseismic records from other segments along the Hope fault zone indicates evidence for two or three rupture events within the last 700-900 yr. Within the age resolution of the current dates, the data suggest that along-strike rupture occurred along the majority of the Hope fault zone between 120 and 360 yr ago (i. e., A.D. 1650-1888), and may all postdate the most recent rupture of the Alpine fault in ca. A.D. 1717. In addition, the timings of penultimate faulting events along the Hurunui, Hope River, and Conway segments and the Hanmer fault all fall in the range ~400-700 yr ago. These preliminary observations indicate that rupture of segments of the Hope fault, and indeed the Alpine fault, could occur as clusters that are years to decades apart. Rupture of the major plate boundary faults in the northern South Island may therefore occur in sequences that are enhanced, or even retarded, by stress triggering and fault interactions.

show abstract

“…Maximum dextral and dip-slip rates of $25 mm/yr and 10 mm/yr occur along the central section of the fault [Berryman et al, 1992;Norris and Cooper, 2001]. To the north, relative plate motion is increasingly taken up by younger strike-slip faults of the Marlborough Fault zone (MFZ in Figure 1a), such that the estimated slip on the Alpine Fault decreases north of the intersection with the Hope Fault to $10 mm/yr (dextral) and $6 mm/yr (dip slip) [Norris and Cooper, 2001;Langridge and Berryman, 2005]. Further north at our survey site, the slip rates are likely to have decreased further, though this has not been quantified.…”

Section: Variation In Slip Ratesmentioning

confidence: 99%

Ultrahigh‐resolution seismic reflection imaging of the Alpine Fault, New Zealand

et al. 2009

Self Cite

View full text Add to dashboard Cite

[1] High-resolution seismic reflection surveys across active fault zones are capable of supplying key structural information required for assessments of seismic hazard and risk.We have recorded a 360 m long ultrahigh-resolution seismic reflection profile across the Alpine Fault in New Zealand. The Alpine Fault, a continental transform that juxtaposes major tectonic plates, is capable of generating large (M > 7.8) damaging earthquakes. Our seismic profile across a northern section of the fault targets fault zone structures in Holocene to late Pleistocene sediments and underlying Triassic and Paleozoic basement units from 3.5 to 150 m depth. Since ultrashallow seismic data are strongly influenced by near-surface heterogeneity and source-generated noise, an innovative processing sequence and nonstandard processing parameters are required to produce detailed information on the complex alluvial, glaciofluvial and glaciolacustrine sediments and shallow to steep dipping fault-related features. We present high-quality images of structures and deformation within the fault zone that extend and complement interpretations based on shallow paleoseismic and ground-penetrating radar studies. Our images demonstrate that the Alpine Fault dips 75°-80°to the southeast through the Quaternary sediments, and there is evidence that it continues to dip steeply between the shallow basement units. We interpret characteristic curved basement surfaces on either side of the Alpine Fault and deformation in the footwall as consequences of normal drag generated by the reverse-slip components of displacement on the fault. The fault dip and apparent $35 m vertical offset of the late Pleistocene erosional basement surface across the Alpine Fault yield a provisional dip-slip rate of 2.0 ± 0.6 mm/yr. The more significant dextral-slip rate cannot be determined from our seismic profile.

show abstract

Morphology and slip rate of the Hurunui section of the Hope Fault, South Island, New Zealand

Cited by 58 publications

References 25 publications

Timing of late Holocene surface rupture of the Wairau Fault, Marlborough, New Zealand

Timing of late Holocene surface rupture of the Wairau Fault, Marlborough, New Zealand

Timing of late Holocene paleoearthquakes on the Hurunui segment of the Hope fault: Implications for plate boundary strain release through South Island, New Zealand

Ultrahigh‐resolution seismic reflection imaging of the Alpine Fault, New Zealand

Contact Info

Product

Resources

About