AK135 Travel Time Tables

To download - choose a phase below (Postscript UNIX gzipped files)

Body Waves
Depth 0-15-35-50-100
150-200-250 km
300-350-400-450-500
550-600-650-700 km
Phases

P

S

P

S
Distance0o - 125o0o - 125o

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Core Reflections
Depth 0 - 35 - 100 - 200
300 - 500 - 700 km
 0 - 35 - 100 - 200
300 - 500 - 700 km
Phases

PcP

ScS

PcS

ScP
Distance0o - 98o0o - 62o

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Core Phases
Depth 0-35-100-200
300-500-700 km
0-35-100-200
300-500-700 km
0-35-100-200
300-500-700 km
0-35-100-200
300-500-700 km
0-35-100-200
300-500-700 km
Phases

PKPab

PKPbc

PKPdf

SKSac

SKSdf
Distance 143o - 180o 143o - 155o 113o - 180o 61o - 144o 103o - 180o

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Differential Times
Depth 15 - 35 - 50 - 100 - 150 - 200 - 250 - 300 - 400 - 500 - 600 - 700
Phases [ pP - P ] | [ sP - P ] | [ sS - S ] | [ pS - S ]
Distance [ 2 - 100 ] | [ 2 - 100 ] | [ 2 - 100 ] | [ 22 - 100 ]

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Summary Tables at Constant Range:

On order to aid seismic phase association we display the travel times for a wide range of phases at 2o intervals with source depths of ), 100, 300 and 600 km at each range.

The phases displayed are:

P phases -

S phases -
Converted phases -
The various branches of the core phases are identified in the tables by lower case suffices.

Summary travel time tables
Phases

Body waves

Core phases
Distance0o - 125o110o - 180o

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Summary travel time plots
Depth 0 km 100 km 300 km 600 km
Parameter Time (114KB) Time (171 KB) Time (170 KB) Time (165 KB)
Slowness (126) Slowness (164 KB) Slowness (166 KB) Slowness (164 KB)
Tau (136 KB) Tau (208 KB) Tau (210 KB) Tau (205 KB)

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Ellipticity Correction Tables

These tables present the corrections for the ellipticity of the Earth at 5o intervals in the formulation of Dziewonski & Gilbert (1976) for the following phases: 
P phases
	P, PcP, PKP[ab,bc,df], Pdiff, PKiKP, pP, pPKP[ab,bc,df],

	pPKiKP, PKKP[ab,bc.df], PP, P'P'

S phases
	S, ScS, SKS[ac,df], SKiKS, Sdiff, SKS[ac,df],

	sS, sSKS[ac,df], SKKS[ac,df], SS, S'S' 

Converted phases
	ScP, SKP, sP, sPKP[ab,bc,df], sPKiKP, SKP[ab,bc,df], pS, pSKS[ac,df],

	PcS, SKKP[ab,bc,df], PKS[ab,bc,df], PKKS[ab,bc,df], SP, PS, PnS

at source depths of 0, 35, 50, 100, 200, 300 and 700 km.

For each source depth the values of the three correction coefficients are given as a function of epicentral distance and could be downloaded

HERE (77 KB)