KERMADEC ISLANDS
Geological Setting
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M 6.9 Kermadec Earthquake: February 18, 2009
Magnitude 6.9 - KERMADEC ISLANDS REGION
2009 February 18 21:53:44 UTC
Earthquake Details
Magnitude
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6.9
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Date-Time
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 Wednesday, February 18, 2009 at 21:53:44 UTC Thursday, February 19, 2009 at 09:53:44 AM at epicenter
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Location
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27.464°S, 176.324°W
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Depth
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25 km (15.5 miles) set by location program
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Region
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KERMADEC ISLANDS REGION
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Distances
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250 km (155 miles) NE of Raoul Island, Kermadec Islands
505 km (315 miles) NNE of L'Esperance Rock, Kermadec Islands
1335 km (830 miles) NE of Auckland, New Zealand
1740 km (1080 miles) NNE of WELLINGTON, New Zealand
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Location Uncertainty
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horizontal +/- 6.8 km (4.2 miles); depth fixed by location program
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Parameters
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NST=222, Nph=222, Dmin=>999 km, Rmss=1.02 sec, Gp= 25°,
M-type=regional moment magnitude (Mw), Version=7
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Source
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USGS NEIC (WDCS-D)
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Event ID
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us2009dfch
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Tectonic Summary
>>The February 18, 2009, M6.9 earthquake occurred in the Tonga - Kermadec subduction zone. The subduction zone extends north-northeast from the North Island of New Zealand for over 2500 km through Tonga to within 100 km of Western Samoa. At a broad scale, tectonics of the subduction zone reflect the motion of the Pacific plate westward with respect to the interior of the Australia plate at a velocity of about 60 mm/y in the epicentral region of the earthquake. The Pacific plate subducts beneath the Australia plate at the Tonga and Kermadec trenches, and dips to the west. In detail, the eastern edge of the broad Australia plate may itself be viewed as a collection of small plates or microplates that move with respect to each other and with respect to the Pacific plate and the Australia plate interior. The location and focal-mechanism of the earthquake are consistent with it occurring as thrust faulting on the interface between the subducting Pacific plate and the overriding Australia plate (in detail, the overriding Kermadec microplate).
The interaction between the Pacific and Australia plate creates one of the most active tectonic environments in the world, with a high level of associated earthquake activity. Since 1976, a 200-km long section of the Tonga - Kermadec subduction zone that includes the epicenter of the February 18 earthquake has produced over 50 earthquakes of magnitude 6 or larger, with the largest having magnitude 7.9.<<
(USGS)
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Using RIYAL 3.13
Astrological Setting (Tropical - Placidus)
RIYAL Wed February 18 2009 UT 21h53m44s Lat27s28 Lon176w19 SORT ALL
Planet Longit. Latit. Decl. Const.
Orcus = 0Vi01 r 18s36 5s59 Sex
OX3 = 0Pi10 2n22 9s11 Aqr
Sun = 0Pi23 0n00 11s20 Aqr
UX25 = 0Ta36 2s27 9n24 Psc
OR10 = 0Pi44 3s39 14s37 Aqr
RN43 = 1Pi16 11n17 0s27 Aqr
MS4 = 1Cp55 14n26 9s00 Ser
Apogee = 1Cp58 r 3s12 26s37 Sgr
FZ53 = 2Sa30 22n48 1n44 Ser
Pluto = 2Cp46 5n41 17s43 Sgr
Teharonhi= 2Pi53 1n11 9s20 Aqr
VS2 = 2Ge54 12n41 33n10 Per
VR130 = 3Ge32 3s13 17n42 Tau
CO104 = 3Li32 r 0s29 1s51 Vir
TC302 = 3Ta33 7n19 19n34 Ari
Asbolus = 3Ta57 9n13 21n29 Ari
GZ32 = 4Sc01 r 14n57 1n15 Vir
CC22 = 4Aq29 0n14 18s55 Cap
Bienor = 4Ar42 9n50 10n53 Peg
Mercury = 4Aq47 0s24 19s28 Cap
CY118 = 4Li50 r 9n48 7n05 Vir
VQ94 = 6Sc13 r 12n47 1s30 Vir
Ceto = 6Sc25 r 15n42 1n12 Vir
KX14 = 6Sa33 0s16 21s40 Sco
KF77 = 6Sa59 3s18 24s44 Sco
GV9 = 7Sc22 r 13s05 26s17 Hya
Okyrhoe = 7Li25 r 2n43 0s27 Vir
Deucalion= 7Sc55 r 0n06 14s04 Lib
GM137 = 8Pi11 13s19 20s48 Aqr
VU2 = 8Sa18 1s23 23s04 Oph
WN188 = 8Aq21 1s22 19s30 Cap
BU48 = 8Vi28 r 6n24 14n19 Leo
RP120 = 9Sa04 37n24 15n12 Her
Chaos = 9Ge07 r 4n16 26n02 Tau
Node = 9Aq09 0n00 17s58 Cap
Hylonome = 9Sa36 3n50 18s06 Oph
TO66 = 10Ar05 7n47 11n09 Psc
Jupiter = 10Aq23 0s29 18s06 Cap
MW12 = 10Sa38 19n37 2s37 Oph
Venus = 10Ar56 4n21 8n20 Psc
Mars = 11Aq04 1s03 18s28 Cap
TD10 = 11Ge12 5s38 16n32 Tau
DA62 = 11Pi14 40s23 43s47 Phe
OO67 = 11Ar20 15s16 9s34 Cet
Huya = 12Sc21 r 12n16 3s50 Lib
QF6 = 12Li25 r 18n44 12n20 Vir
Pholus = 12Sa50 19n02 3s26 Oph
RG33 = 12Ca53 r 36n10 58n42 Lyn
XR190 = 12Ge55 r 1s27 20n55 Tau
XX143 = 13Le59 r 3n36 20n04 Cnc
RZ215 = 14Pi01 1n14 5s09 Aqr
QB243 = 14Pi34 1n41 4s31 Aqr
Echeclus = 14Sc40 3n13 13s09 Lib
Nessus = 15Aq07 14s39 30s14 PsA
Ixion = 15Sa46 1s10 23s50 Oph
EL61 = 16Li16 r 27n33 19n00 Boo
GQ21 = 16Sc49 r 7n02 10s06 Lib
FP185 = 17Li33 r 9n59 2n21 Vir
Radamantu= 17Li40 r 1s29 8s18 Vir
TX300 = 18Ar14 21n14 26n38 And
PJ30 = 18Aq19 2n20 13s07 Aqr
FZ173 = 18Li22 r 3s18 10s16 Vir
DH5 = 18Li46 r 15n13 6n44 Vir
Typhon = 18Vi47 r 0n12 4n37 Leo
Varuna = 18Ca57 r 3n51 25n55 Gem
PA44 = 18Ta58 1s10 16n20 Ari
Pylenor = 19Ge07 r 4s33 18n27 Tau
OM67 = 19Pi18 9n11 4n13 Psc
CF119 = 19Le21 r 5s48 9n30 Cnc
Chariklo = 19Sc32 23s05 39s39 Cen
SB60 = 19Pi38 22n10 16n15 Peg
Thereus = 19Ta42 10s09 7n52 Cet
Saturn = 19Vi46 r 2n14 6n07 Leo
UJ438 = 20Ge00 0s13 22n51 Tau
AW197 = 20Le02 r 10s06 5n12 Hya
Quaoar = 20Sa07 7n27 15s39 Ser
Sedna = 20Ta21 11s53 6n22 Tau
CO1 = 20Sc31 11n18 6s58 Lib
Eris = 20Ar51 13s46 4s38 Cet
Uranus = 21Pi22 0s44 4s06 Aqr
Elatus = 21Le42 r 4n38 18n39 Leo
XZ255 = 21Le46 r 2n30 16n37 Leo
Chiron = 21Aq47 6n04 8s30 Cap
QB1 = 22Ar14 0n52 9n28 Psc
CE10 = 22Sc18 r 34s34 51s14 Lup
Moon = 22Sa22 3s51 27s03 Oph
Logos = 22Vi25 r 1n52 4n44 Leo
RR43 = 22Ta38 15s56 2n59 Tau
AZ84 = 22Ca55 r 9s15 12n22 Gem
RZ214 = 23Ar00 3n52 12n32 Psc
GB32 = 23Li03 r 6n07 3s17 Vir
PN34 = 23Pi55 13n11 9n41 Peg
Crantor = 23Sa57 7n35 15s43 Ser
RM43 = 24Ta06 14s52 4n22 Tau
Neptune = 24Aq11 0s22 13s48 Cap
CR105 = 24Le11 r 6n40 19n44 Leo
PB112 = 24Pi21 0s31 2s43 Psc
96PW = 24Ca24 r 16s00 5n29 CMi
SQ73 = 24Ta58 11n49 30n26 Ari
FY9 = 25Vi14 r 29n23 28n37 Com
TY364 = 25Ar31 22s38 11s15 Cet
TL66 = 25Ta49 8s27 11n00 Tau
Cyllarus = 25Ge54 r 7n40 31n02 Aur
WL7 = 26Ta06 9n10 28n11 Ari
RD215 = 26Ar12 1n29 11n30 Psc
RL43 = 26Ar33 8s40 2n09 Cet
SA278 = 26Ar44 9s56 1n02 Cet
LE31 = 26Ge52 r 11s17 12n07 Ori
UR163 = 27Ar06 0n45 11n08 Psc
XA255 = 27Vi25 r 12n56 12n52 Vir
Ascend = 27Ar30 0n00 10n35 Psc
QD112 = 27Ar33 7n05 17n12 Psc
Vertex = 27Sa45
OP32 = 27Aq55 16n07 2n58 Aqr
YQ179 = 27Ca57 r 3n25 23n55 Cnc
CZ118 = 28Vi40 r 6s44 5s39 Vir
Midheav = 28Cp58 0n00 20s22 Sgr
BL41 = 29Li17 r 12s41 23s02 Hya
Pelion = 29Pi31 7s15 6s50 Cet
HB57 = 29Li47 r 2n56 8s39 Vir
Amycus = 29Sc58 13s09 32s57 Lup
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Celsius 22 Ar 37 Kelvin 4 Li 33 Richter 18 Ge 50
Cuvier 2 Ar 43 Milankovitch 15 Li 08 Tazieff 25 Le 05
Darwin 10 Ta 43 Mohorovicic 26 Li 06 Vulcano 20 Sc 25
Flammario 2 Ta 43 Nephele 24 Ge 15 Wegener 10 Ar 18
Flammeus 3 Sc 23 Pele 9 Sc 30 Werner 13 Ar 19
Humboldt 6 Le 00 Plinius 4 Pi 00 Hutton 22 Li 17
Tsunemi 23 Sa 18 Tillysmith 8 Sa 34 Thucydides 25 Aq 47
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Focused Minor Planets
OR10 = 0 Pi 44
Sun = 0 Pi 23
OX3 = 0 Pi 10
RN43 = 1 Pi 16
Orcus = 0 Vi 01 r
UX25 = 0 Ta 36 Sextile
Apogee = 1 Cp 58 r
MS4 = 1 Cp 55
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AW197 = 20 Le 02 r
CF119 = 19 Le 21 r
Chiron = 21 Aq 47
Saturn = 19 Vi 46 r Semisextile
Uranus = 21 Pi 22 Quincunx
Eris = 20 Ar 51 Trine
Quaoar = 20 Sa 07
Sedna = 20 Ta 21 T Square
Vulcano = 20 Sc 25
Pylenor = 19 Ge 07 r Sextile
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RR43 = 22 Ta 38
RM43 = 24 Ta 06
Moon = 22 Sa 22 Quincunx
Tsunemi = 23 Sa 18
GB32 = 23 Li 03 r
Hutton = 22 Li 17
Neptune = 24 Aq 11 T Square
CR105 = 24 Le 11 r
RZ214 = 23 Ar 00 Semisextile
Celsius = 22 Ar 37
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TC302 = 3 Ta 33
Flammario = 2 Ta 43
Flammeus = 3 Sc 23
Mercury = 4 Aq 47 Square
Pluto = 2 Cp 46 Trine
CY118 = 4 Li 50 r Quincunx
Kelvin = 4 Li 33
Cuvier = 2 Ar 43 Semisextile
Plinius = 4 Pi 00 Sextile
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OO67 = 11 Ar 20
Venus = 10 Ar 56
TO66 = 10 Ar 05
Wegener = 10 Ar 18
Mars = 11 Aq 04 Sextile
Jupiter = 10 Aq 23
TD10 = 11 Ge 12
XR190 = 12 Ge 55 r
TL66 = 25 Ta 49 Semisquare
Hylonome = 9 Sa 36 Trine
Huya = 12 Sc 21 r Quincunx
Darwin = 10 Ta 43 Semisextile
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Chaos = 9 Ge 07 r
MW12 = 10 Sa 38
Hylonome = 9 Sa 36
Tillysmith = 8 Sa 34
Venus = 10 Ar 56 Sextile
Jupiter = 10 Aq 23 Trine
Mars = 11 Aq 04
Node = 9 Aq 09
Pele = 9 Sc 30 Quincunx
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Varuna = 18 Ca 57 r
Saturn = 19 Vi 46 r Sextile
Typhon = 18 Vi 47 r
TX300 = 18 Ar 14 Square
Richter = 18 Ge 50 Semisextile
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TL66 = 25 Ta 49
RM43 = 24 Ta 06
Neptune = 24 Aq 11 T Square
Thucydides = 25 Aq 47
CR105 = 24 Le 11 r
Tazieff = 25 Le 05
OO67 = 11 Ar 20 Semisquare
Venus = 10 Ar 56
TO66 = 10 Ar 05
Wegener = 10 Ar 18
Makemake = 25 Vi 14 r Trine
TY364 = 25 Ar 31 Semisextile
SA278 = 26 Ar 44
Mohorovicic = 26 Li 06 Quincunx
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Astrological Setting (Sidereal - Fagan/Bradley)
RIYAL Wed February 18 2009 UT 21h53m44s Lat27s28 Lon176w19 SORT ALL
Planet Longit.
SQ73 = 0Ta06
FY9 = 0Vi22 r
TY364 = 0Ar38
TL66 = 0Ta57
Cyllarus = 1Ge02 r
WL7 = 1Ta14
RD215 = 1Ar20
RL43 = 1Ar41
SA278 = 1Ar51
LE31 = 1Ge59 r
UR163 = 2Ar14
XA255 = 2Vi33 r
Ascend = 2Ar38
QD112 = 2Ar41
Vertex = 2Sa52
OP32 = 3Aq02
YQ179 = 3Ca05 r
CZ118 = 3Vi47 r
Midheav = 4Cp06
BL41 = 4Li25 r
Pelion = 4Pi38
HB57 = 4Li55 r
Amycus = 5Sc06
Orcus = 5Le09 r
OX3 = 5Aq18
Sun = 5Aq31
UX25 = 5Ar44
OR10 = 5Aq52
RN43 = 6Aq24
MS4 = 7Sa03
Apogee = 7Sa06 r
FZ53 = 7Sc38
Pluto = 7Sa54
Teharonhi= 8Aq01
VS2 = 8Ta02
VR130 = 8Ta40
CO104 = 8Vi40 r
TC302 = 8Ar40
Asbolus = 9Ar05
GZ32 = 9Li09 r
CC22 = 9Cp36
Bienor = 9Pi50
Mercury = 9Cp55
CY118 = 9Vi57 r
VQ94 = 11Li20 r
Ceto = 11Li33 r
KX14 = 11Sc41
KF77 = 12Sc07
GV9 = 12Li30 r
Okyrhoe = 12Vi33 r
Deucalion= 13Li03 r
GM137 = 13Aq19
VU2 = 13Sc26
WN188 = 13Cp28
BU48 = 13Le35 r
RP120 = 14Sc12
Chaos = 14Ta15 r
Node = 14Cp17
Hylonome = 14Sc44
TO66 = 15Pi13
Jupiter = 15Cp31
MW12 = 15Sc46
Venus = 16Pi04
Mars = 16Cp11
TD10 = 16Ta20
DA62 = 16Aq22
OO67 = 16Pi28
Huya = 17Li28 r
QF6 = 17Vi33 r
Pholus = 17Sc58
RG33 = 18Ge00 r
XR190 = 18Ta02 r
XX143 = 19Ca07 r
RZ215 = 19Aq09
QB243 = 19Aq42
Echeclus = 19Li47
Nessus = 20Cp14
Ixion = 20Sc54
EL61 = 21Vi24 r
GQ21 = 21Li57 r
FP185 = 22Vi40 r
Radamantu= 22Vi48 r
TX300 = 23Pi22
PJ30 = 23Cp27
FZ173 = 23Vi30 r
DH5 = 23Vi54 r
Typhon = 23Le55 r
Varuna = 24Ge04 r
PA44 = 24Ar06
Pylenor = 24Ta15 r
OM67 = 24Aq26
CF119 = 24Ca28 r
Chariklo = 24Li40
SB60 = 24Aq46
Thereus = 24Ar49
Saturn = 24Le54 r
UJ438 = 25Ta08
AW197 = 25Ca10 r
Quaoar = 25Sc15
Sedna = 25Ar29
CO1 = 25Li39
Eris = 25Pi58
Uranus = 26Aq29
Elatus = 26Ca50 r
XZ255 = 26Ca54 r
Chiron = 26Cp55
QB1 = 27Pi21
CE10 = 27Li26 r
Moon = 27Sc29
Logos = 27Le33 r
RR43 = 27Ar46
AZ84 = 28Ge02 r
RZ214 = 28Pi08
GB32 = 28Vi11 r
PN34 = 29Aq02
Crantor = 29Sc05
RM43 = 29Ar14
Neptune = 29Cp18
CR105 = 29Ca19 r
PB112 = 29Aq28
96PW = 29Ge31 r
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Celsius 27 Pi 45 Kelvin 9 Vi 41 Richter 23 Ta 58
Cuvier 7 Pi 51 Milankovitch 20 Vi 16 Tazieff 0 Le 12
Darwin 15 Ar 50 Mohorovicic 1 Li 14 Vulcano 25 Li 33
Flammario 7 Ar 51 Nephele 29 Ta 23 Wegener 15 Pi 26
Flammeus 8 Li 31 Pele 14 Li 38 Werner 18 Pi 26
Humboldt 11 Ca 07 Plinius 9 Aq 08 Hutton 27 Vi 25
Tsunemi 28 Sc 26 Tillysmith 13 Sc 41 Thucydides 0 Aq 55
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Focused Minor Planets
OR10 = 5 Aq 52
Sun = 5 Aq 31
OX3 = 5 Aq 18
RN43 = 6 Aq 24
Orcus = 5 Le 09 r
UX25 = 5 Ar 44 Sextile
Apogee = 7 Sa 06 r
MS4 = 7 Sa 03
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AW197 = 25 Ca 10 r
CF119 = 24 Ca 28 r
Chiron = 26 Cp 55
Saturn = 24 Le 54 r Semisextile
Uranus = 26 Aq 29 Quincunx
Eris = 25 Pi 58 Trine
Quaoar = 25 Sc 15
Sedna = 25 Ar 29 T Square
Vulcano = 25 Li 33
Pylenor = 24 Ta 15 r Sextile
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RR43 = 27 Ar 46
RM43 = 29 Ar 14
Moon = 27 Sc 29 Quincunx
Tsunemi = 28 Sc 26
GB32 = 28 Vi 11 r
Hutton = 27 Vi 25
Neptune = 29 Cp 18 T Square
CR105 = 29 Ca 19 r
RZ214 = 28 Pi 08 Semisextile
Celsius = 27 Pi 45
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TC302 = 8 Ar 40
Flammario = 7 Ar 51
Flammeus = 8 Li 31
Mercury = 9 Cp 55 Square
Pluto = 7 Sa 54 Trine
CY118 = 9 Vi 57 r Quincunx
Kelvin = 9 Vi 41
Cuvier = 7 Pi 51 Semisextile
Plinius = 9 Aq 08 Sextile
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OO67 = 16 Pi 28
Venus = 16 Pi 04
TO66 = 15 Pi 13
Wegener = 15 Pi 26
Mars = 16 Cp 11 Sextile
Jupiter = 15 Cp 31
TD10 = 16 Ta 20
XR190 = 18 Ta 02 r
TL66 = 0 Ta 57 Semisquare
Hylonome = 14 Sc 44 Trine
Huya = 17 Li 28 r Quincunx
Darwin = 15 Ar 50 Semisextile
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Chaos = 14 Ta 15 r
MW12 = 15 Sc 46
Hylonome = 14 Sc 44
Tillysmith = 13 Sc 41
Venus = 16 Pi 04 Sextile
Jupiter = 15 Cp 31 Trine
Mars = 16 Cp 11
Node = 14 Cp 17
Pele = 14 Li 38 Quincunx
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Varuna = 24 Ge 04 r
Saturn = 24 Le 54 r Sextile
Typhon = 23 Le 55 r
TX300 = 23 Pi 22 Square
Richter = 23 Ta 58 Semisextile
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TL66 = 0 Ta 57
RM43 = 29 Ar 14
Neptune = 29 Cp 18 T Square
Thucydides = 0 Aq 55
CR105 = 29 Ca 19 r
Tazieff = 0 Le 12
OO67 = 16 Pi 28 Semisquare
Venus = 16 Pi 04
TO66 = 15 Pi 13
Wegener = 15 Pi 26
Makemake = 0 Vi 22 r Trine
TY364 = 0 Ar 38 Semisextile
SA278 = 1 Ar 51
Mohorovicic = 1 Li 14 Quincunx
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Quake Moon = 27 Sc 29
Quake Tsunemi = 28 Sc 26
Quake Hutton = 27 Vi 25
NZ Chaos = 26 Sc 36
NZ AW197 = 28 Aq 20
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Quake Sun = 5 Aq 31
Quake OR10 = 5 Aq 52
NZ Vulcano = 5 Le 05
NZ Mars = 6 Cp 05
NZ CZ118 = 5 Ge 18 r
NZ Node = 5 Ge 41 r
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Quake Midheav = 4 Cp 06
NZ Sun = 3 Cp 42
NZ Radamantu= 4 Cp 27
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Quake Mercury = 9 Cp 55
NZ SA278 = 10 Cp 23
NZ Thucydides = 8 Cp 02
NZ Mercury = 10 Sa 48
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Quake Venus = 16 Pi 04
NZ OM67 = 16 Vi 48 r
NZ Neptune = 16 Aq 56
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Quake Mars = 16 Cp 11
NZ XR190 = 16 Cp 00
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Quake Jupiter = 15 Cp 31
NZ Typhon = 14 Cp 07
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Quake Uranus = 26 Aq 29
NZ AW197 = 28 Aq 20
NZ Chaos = 26 Sc 36
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Quake Neptune = 29 Cp 18
Quake CR105 = 29 Ca 19 r
Quake PB112 = 29 Aq 28
NZ OR10 =28 Le 59
NZ AW197 = 28 Aq 20
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Quake Pluto = 7Sa54
Quake Apogee = 7Sa06 r
Quake Flammeus = 8Li31
Quake Flammario = 7Ar51
NZ Pluto = 7Ar08
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Quake Orcus = 5 Le 09 r
NZ Vulcano = 5 Le 05
NZ Makemake = 3 Aq 27
NZ Venus = 4 Sa 48
NZ Node = 5 Ge 41 r
NZ CZ118 = 5 Ge 18 r
NZ Sedna = 4 Pi 27
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Quake Ixion = 20 Sc 54
NZ Orcus = 19 Sc 32
NZ Jupiter = 22 Sc 20
NZ Ixion = 22 Ta 39 r
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Quake Eris = 25 Pi 58
NZ (Moon) = 25 Pi 53
NZ TD10 = 25 Vi 44 r
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Quake VQ94 = 11 Li 20 r
NZ Uranus = 11 Ar 48
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Quake Richter = 23 Ta 58
NZ Jupiter = 22 Sc 20
NZ Ixion = 22 Ta 39 r
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Paranatellontas
RIYAL Wed February 18 2009 UT 21h53m44s Lat27s28 Lon176w19 PARANS
-0h08.8 SA2 a
-0h05.1 RD2 a
-0h01.4 UR1 a
-0h01.3 YQ1 i
0h04.3 QD1 a
0h08.7 HB5 d
0h12.7 UX2 a
Astrocartography
YQ179 has the IC line going very near the epicenter
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