Citation:

PANGAEA.910781

Name: Coastal landslides at Omokoroa Peninsula, Tauranga Harbour, New Zealand
Published: 2020-01-14
License: https://creativecommons.org/licenses/by/4.0/
Keywords: coastal landslides; Landslide inventory; New Zealand; Tephra

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Keyword(s):

coastal landslides; Landslide inventory; New Zealand; Tephra

Related to:

Kluger, Max Oke; Jorat, Ehsan M; Moon, Vicki G; Kreiter, Stefan; de Lange, Willem P; Mörz, Tobias; Robertson, Thomas; Lowe, David J (2020): Rainfall threshold for initiating effective stress decrease and failure in weathered tephra slopes. Landslides, 17(2), 267-281, https://doi.org/10.1007/s10346-019-01289-2

Further details:

Gulliver, C P; Houghton, B F (1980): Omokoroa Point Land Stability Investigation. Tonkin & Taylor, Tauranga County (N.Z.). County Counci, 108 pp.

Coverage:

Median Latitude: -37.630357 * Median Longitude: 176.047541 * South-bound Latitude: -37.637375 * West-bound Longitude: 176.038878 * North-bound Latitude: -37.626387 * East-bound Longitude: 176.053705

Event(s):

L-1_Omok (L-1) * Latitude: -37.637375 * Longitude: 176.038878 * Location: Omokoroa Peninsula, New Zealand

L-2_Omok (L-2) * Latitude: -37.635577 * Longitude: 176.041161 * Location: Omokoroa Peninsula, New Zealand

L-3-1_Omok (L-3) * Latitude: -37.635118 * Longitude: 176.041822 * Location: Omokoroa Peninsula, New Zealand

Comment:

*Base of slide surface

+1979 Bramley Drive landslide dimensions from Gulliver and Houghton (1980)

++Main failure event

Ter–Terrace; Rd–Road; Av–Avenue; Grv–Grove; St–Street; Dr–Drive; Pl–Place

TPI–Te Puna Ignimbrite; PT–Pahoia Tephras; HA–Hamilton Ashes; N/A–Not available

D–deep-seated; S–shallow; DS–complex earth slide with deep-seated being the dominant mode of failure and shallow failure associated to the main event

A–Cyclone Debbie (April 5th, 2017); B–Cyclone Cook (April 13th, 2017).

Notation:

L_s – distance from toe of slip surface to crown of the main scarp

W_s – maximum width between flanks of the landslide perpendicular to L_s

D_s – maximum depth of slip surface below the original ground surface, measured perpendicular to the plane containing W_s and L_s

H – vertical distance between crown and tip of the landslide deposit

L – horizontal distance between crown and tip of the landslide deposits

A_L – landslide area

V_s – Volume of shallow landslides

V_ds – Volume of deep-seated landslides

β – travel angle

References cited

-Gulliver, C., and Houghton, B., 1980, Omokoroa Point Land Stability Investigation: Tonkin & Taylor.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Kluger, Max Oke
2	Optional event label	Event 2		Kluger, Max Oke
3	Coordinate, x, relative	x	arbitrary units	Kluger, Max Oke	NZGD2000_New_Zealand_Transverse_Mercator_2000
4	Coordinate, y, relative	y	arbitrary units	Kluger, Max Oke	NZGD2000_New_Zealand_Transverse_Mercator_2000
5	Location	Location		Kluger, Max Oke
6	Material	Material		Kluger, Max Oke
7	Type	Type		Kluger, Max Oke
8	Depth of maximum slip	Ds	m	Kluger, Max Oke	Ds
9	Width	w	m	Kluger, Max Oke	Ws
10	Distance	Distance	m	Kluger, Max Oke	Ls
11	Distance	Distance	m	Kluger, Max Oke	H
12	Distance	Distance	m	Kluger, Max Oke	L
13	Zirconium/Yttrium ratio	Zr/Y		Kluger, Max Oke	landslide area
14	Volume	Vol	m³	Kluger, Max Oke	Vt
15	Volume	Vol	m³	Kluger, Max Oke	Vr
16	Ratio	Ratio		Kluger, Max Oke	H/L
17	Angle	Angle	deg	Kluger, Max Oke	β
18	Comment	Comment		Kluger, Max Oke	Timing

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

384 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Event 2	3 x [arbitrary units] (NZGD2000_New_Zealand_Transver...)	4 y [arbitrary units] (NZGD2000_New_Zealand_Transver...)	5 Location	6 Material	7 Type	8 Ds [m] (Ds)	9 w [m] (Ws)	10 Distance [m] (Ls)	11 Distance [m] (H)	12 Distance [m] (L)	13 Zr/Y (landslide area)	14 Vol [m³] (Vt)	15 Vol [m³] (Vr)	16 Ratio (H/L)	17 Angle [deg] (β)	18 Comment (Timing)
L-1_Omok	L-1	5830073	1868146	Waterview Ter	TPI, PT*,	DS	7.0	25	25	20	30	625		2291	0.67	34	A
L-2_Omok	L-2	5830266	1868354	Hamurana Rd - Kaharoa Av	TPI*, PT	S		185	6	5	8	1185	1811		0.67	34	A
L-3-1_Omok	L-3	5830315	1868414		TPI	S		30	32	20	50	960	1370		0.40	22	A
L-3-2_Omok	L-3-2	5830315	1868414		TPI*, PT	D	5.5	15	14	10	20	212		611	0.50	27	A
L-3-3_Omok	L-3-3	5830315	1868414		PT	S		5	10	7	10	49	26		0.70	35	A
L-4_Omok	L-4	5830378	1868451	Kaharoa Av	N/A	DS	4.0	15	16	10	12	234		491	0.83	40	A
L-5_Omok	L-5	5830585	1868604	Kowai Grv	TPI, PT*,	D	9.0	30	32	20	38	960		4526	0.53	28	A
L-6_Omok	L-6	5830626	1868632		TPI	S		29	29	20	21	841	1148		0.95	44	A
L-7_Omok	L-7	5830678	1868672	McDonnell St	N/A	S		20	25	15	25	500	574		0.60	31	A
L-8_Omok	L-8	5830729	1868707		TPI	S		48	9	8	5	410	441		1.60	58	A
L-9_Omok	L-9	5830761	1868722		TPI, PT*,	DS	14.0	25	58	30	115	1458		10686	0.26	15	A
L-10_Omok	L-10	5830812	1868751	Bramley Dr	PT, HA	S		64	36	30	30	2308	4403		1.00	45	A
L-11_Omok	L-11	5830851	1868788		PT, HA	D	27.0	62	68	32	210	4216		59602	0.15	9	1979+
L-12_Omok	L-12	5830894	1868791		PT, HA	S		10	17	15	15	170	136		1.00	45	A++, B
L-13_Omok	L-13	5830913	1868815	Ruamoana Pl	PT, HA	S		14	25	21	25	343	348		0.85	41	A
L-14_Omok	L-14	5830990	1868867		PT	D	6.0	19	15	9	30	278		872	0.30	17	B
L-15_Omok	L-15	5831018	1868889		PT	D	7.0	15	15	9	30	225		825	0.30	17	B
L-16_Omok	L-16	5831242	1869356	Myrtle Dr	TPI*, PT	D	4.0	14	17	8	25	235		491	0.32	18	A++, B
L-17_Omok	L-17	5831248	1869377		TPI	S		15	9	8	10	142	107		0.80	39	A
L-18_Omok	L-18	5831252	1869431		TPI	S		30	18	15	20	541	637		0.75	37	B
L-19_Omok	L-19	5831008	1869423	Crapp Historic Reserve	TPI, PT, HA	S		35	14	14	10	484	550		1.35	53	A
L-20_Omok	L-20	5831208	1869493		TPI, PT, HA	S		7	20	20	10	142	107		2.00	63	A
L-21_Omok	L-21	5831188	1869491		TPI, PT, HA	S		25	12	12	10	309	303		1.20	50	A
L-22_Omok	L-22	5831172	1869489		TPI, PT, HA	S		15	11	10	20	168	134		0.50	27	A
L-23_Omok	L-23	5831160	1869480		TPI, PT, HA	S		8	13	13	7	107	73		1.86	62	A
L-24_Omok	L-24	5831148	1869479		TPI, PT, HA	S		11	14	14	6	152	118		2.25	66	A
L-25_Omok	L-25	5831139	1869472		TPI, PT, HA	S		21	12	10	10	257	236		0.95	44	A
L-26_Omok	L-26	5830872	1869286	Harbour View Rd	TPI	DS	6.0	20	28	19	50	552		1733	0.38	21	A