U.S. Department of the Interior Sea of Okhotsk Earthquake of ......2002/11/17 · 140 t 145 150 A l...
Transcript of U.S. Department of the Interior Sea of Okhotsk Earthquake of ......2002/11/17 · 140 t 145 150 A l...
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S E A O F O K H O T S K
P A C I F I C O C E A N
H O K K A I D O
S A K H A L I N
R U S S I A N F E D.
R U S S I A N F E D.
J A P A N
K u r i l
I s l
a n d s
K u r i l B a s i n
N o r t h w e s tP a c i f i cB a s i n
K u n a s h i r
I t u r u p
U r u p
S i m u s h i r
O n e k o t a n
P a r a m u s h i r
K u r i l
T r
e n c
h
A
A'
1
Ay
OMU
Due
YUNI
Maku
ONOR
Khoe Ulva
Nysh
OTARUBIBAI
OKETORuchi Anama
SHARI
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SAPPOROIkutora
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Notsuka
AKABIRA
MASHIKEWASSAMU
Hideura YUBETSUTyatino
TOMAMAEPtichye
EMBETSU Kasatka
OsenniyZolotoy
KurilskKitovyy
KafukaiWAKKANA
Matoiso
TaranayNEVELSK
KHOLMSK
DOLINSK
Chekhov
Firsovo
MAKAROV
Belkino
Langeri
Kitovyy
Galkino
Longari SholashBalagan
Lopatka
Grotava
ViakhtuParkata
Nogliki
SHINTOKU POMBETSU
KAMOENAI
Hamanaka
Futamata Atsutoko
FURUBIRA
SHIBECHA
SUNAGAWA
Aitomari
TAKIKAWA
Futamata SHIBETSU
MOSEUSHITSUBETSU
Kombuusu
KamikawaAlekhino
ABASHIRI
KEMBUCHI
SHIBETSUTAKINOUE
Nazarovo
MOMBETSU
Kruglovo
Riyaushi
MysovayaOdesskiy
HORONOBETOYOTOMI
Senhoshi
NumakawaSokitani
Slavnoye
Dalnyaya
Atlasovo
Novikovo
Ozerskiy
DachnoyeVysokaya
Ilinskiy
AynskoyePorechye
Staritsa Tumanovo
PorechyeOlkhovka
Gastello Kotikovo
Onekotan
Koshevoy
SMIRNYKHPOBEDINO
Makeyevo
Moskolvo
Trambaus
Olenevod
IsobunnaiAKANKOHAN
TESHIKAGA
KawashimoRUBESHIBE
KOSHIMIZU
Horokanai
OtoineppuShibiutan
Tayezhnyy
UTANOBORI
Parusnoye
Medvezhye
Podgornyy
Shebunino Kirillovo
Sarychevo
Leontyevo
Parusnoye
Medvezhye
UGLEGORSKPORONAYSK
LEONIDOVO
LESOGORSK Matrosovo
Nerpichye
VasilyevoAbramoyka
Saushkino
DE-KASTRI Pauzhetka
Sushchevo
Otradnoye
ASHOROBUTO
RIKUMBETSU
MEMAMBETSU
Chikkaporo
Motodomari
Chippuporo
KuznetsovoMedvedevka
Anfeltsevo
Okhotskoye
Svobodnoye
BelinskoyeZaozernaya
SHAKHTERSK
Sergeyevka
Telnovskiy
Peskoyskiy
Pervomaysk
Shelikhovo
Ust-AgnevoBabushkinoKirovskoye
Tymovskoye
Ado-Tymovo
Zaporozhye
Tulinskoye
Naka-ashoro
SHOSAMBETSU
Soya-misaki
Perevalnaya
KRASNOGORSK
Obryvistoye
KrasnopolyeLermontovka
Vladimirovo
ProstornoyeBoshnyakovo
Oktyabrskiy
OZERNOVSKIY
Rukushibetsu
GORNOZAVODSK
Kostromskoye
Arkovo-Bereg Molodezhnoye
Kobukarikotan
Starodubskoye
Shirokaya Pad
Pogranichnoye
Voskresenovka
Yuzhno-Kurilsk
Higashirucharu
SEVERO KURILSK
Novotambovskoye
Staromayachnoye
Innokentyevskiy
Uska-Orochskaya
Vozvrashcheniye
Homa-onishibetsu
SOVETSKAYA GAVAN
Bolshiye Sanniki
YUZHNO-SAKHALINSKNovoaleksandrovsk
ALEKSANDROVSK SAKHALINSKIY
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Kell
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Smirnov
Rishiri
Rudakov
Chirpoi
Srednii
Rasshua
Raikoke
Sinarka
Ksudach
Daisetsu
Baransky
Urataman
Ushishur
Shirinki
KambalnyKoshelev
Medvezhia
Nemo Peak
Fuss Peak
Berutarube
Ivao Group
Tri Sestry
Prevo Peak
Zheltovsky
Kuntomintar
ChirinkotanKharimkotan
Mashkovtsev
Lvinaya Past
Kolokol Group
Sarychev Peak
Karpinsky Group
Goriaschaia Sopka
Tao-Rusyr Caldera
Sea of Okhotsk Earthquake of 17 November 2002
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Kilometers
SCALE 1:2,500,000Albers Equal Area Projection
130°
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160°
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Kuril Tre
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PA C I F I C O C E A N
S E A O FO K H O T S K
N o r t h w e s tP a c i f i cB a s i n
Kuril Basin
S E A O F J A P A N
R U S S I A N F E D E R A T I O N
CHINA
JAPAN
Kuril
Isla
nds
P A C I F I C P L A T E
E U R A S I A NP L A T E
NORTH AMERICANPLATE
BERINGSEA
Vladivostok
Khabarovsk
Sapporo
Sikhote
Alin R
a.
82 mm/yr
77 mm/yr
Commander Is.
Em
peror Seam
ounts
DETAILED MAP
Kam
chat
ka P
en.
Khabarovsk
Yakutiya Magadan
Amur
Kamchatka
Maritime Terr.
Koryakskiy Auto. Reg.
Heilongjiang
Sakhalin
Hokkaido
Chukchi
Jilin
Tohoku
Jewish Auto. Reg.
Hamgyong-bukto
2002
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Kilometers
SCALE 1:21,000,000Albers Equal-Area Projection
130°
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PA C I F I C O C E A N
S E A O FO K H O T S K
S E A O F J A P A N
R U S S I A N F E D E R A T I O N
CHINA
JAPAN
Kuril
Isla
nds
P A C I F I C P L A T E
E U R A S I A NP L A T E
NORTH AMERICANPLATE
BERINGSEA
Vladivostok
Khabarovsk
Sapporo
Sikhote
Alin R
a.
Commander Is.
DETAILED MAP
Kam
chat
ka P
en.
Khabarovsk
Yakutiya Magadan
Amur
Kamchatka
Maritime Terr.
Koryakskiy Auto. Reg.
Heilongjiang
Sakhalin
Hokkaido
Chukchi
Jilin
Tohoku
Jewish Auto. Reg.
Hamgyong-bukto
2002
130°
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130°
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Kuril Tre
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PA C I F I C O C E A N
S E A O FO K H O T S K
N o r t h w e s tP a c i f i cB a s i n
Kuril Basin
S E A O F J A P A N
R U S S I A N F E D E R A T I O N
CHINA
JAPAN
Kuril
Isla
nds
P A C I F I C P L A T E
E U R A S I A NP L A T E
NORTH AMERICANPLATE
BERINGSEA
Vladivostok
Khabarovsk
Sapporo
Sikhote
Alin R
a.
Commander Is.
Em
peror Seam
ounts
DETAILED MAP
Kam
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ka P
en.
2002
2002
2000
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1915
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1973
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Khabarovsk
Yakutiya Magadan
Amur
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Maritime Terr.
Koryakskiy Auto. Reg.
Heilongjiang
Sakhalin
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Chukchi
Jilin
Tohoku
Jewish Auto. Reg.
SCALE 1:21,000,000Albers Equal-Area Projection
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Kilometers
SCALE 1:21,000,000Albers Equal-Area Projection
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Kilometers
Earthquake History 1900 - 2002Plate Tectonic Setting
Generalized Seismic Hazard
500 km 400 km 300 km 200 km 100 km 0 km 100 km 200 km
500 km 400 km 300 km 200 km 100 km 0 km 100 km 200 km
600 km
500 km
400 km
300 km
200 km
100 km
0 km
600 km
500 km
400 km
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200 km
100 km
0 km
A A'
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General Interest Product xxx
Seismic hazard is expressedas peak ground acceleration(PGA) in meters/sec**2 ex-pected in a 50-yr period with a probability of 10 percent.
RELATIVE PLATE MOTIONS
The relative motion of adjacent tectonicplates is depicted on the map by short vectors located at selected locationson the plate boundary. In this present-ation, one plate is assumed to be rigid and fixed. The vector therefore repre-sents the direction of the moving platerelative to the fixed plate. The rate of relative motion is labelled next tothe vector.
The components of the vector perpendic-ular and parallel to the plate margin approximate convergent/divergent and transverse direction of motion between the plates,respectively. As viewed from the rigid plate, an inward directed com-ponent suggests compression at and near the plate boundary that may be expressedas crustal folding, uplift, thrustfaulting, or plate subduction. Similar-ly, an outward directed component sug-gests plate divergence such as would be expected at a zone of crustal spreading.Transcurrent or transform faultingwould be expected when the predominantvector component is parallel to theplate margin.
U.S. Department of the InteriorU.S. Geological Survey
DATA SOURCES
EARTHQUAKES AND SEISMIC HAZARD USGS, National Earthquake Information Center NOAA, National Geophysical Data Center IASPEI, Centennial Catalog (1900 - 1999) Handbook of Seismology and Earthquake Engineering Global Seismic Hazard Assessment Program
PLATE TECTONICS Smithsonian Institution, Global Volcano Program
BASE MAP NIMA and ESRI, Digital Chart of the World USGS, EROS Data Center
DISCLAIMER
Base map data, such as place names and politicalboundaries, are the best available but may not be current or may contain inaccuracies and thereforeshould not be regarded as having official significance.
Map prepared by U.S. Geological SurveyNational Earthquake Information Center11 December 2002Map not approved for release by Director USGS
EXPLANATIONMain Shock
Mw = 7.3
Peak Ground Acceleration
0.0 - 0.2 m/sec**2
0.2 - 0.4
0.4 - 0.8
0.8 - 1.6
1.6 - 3.2
3.2 - 6.4
6.4 - 9.8
Plate Boundaries
Convergent
Diffuse
Transform
Volcanoes
Political Boundaries
International
Administrative
EXPLANATIONMain Shock
Mw = 7.3
Magnitude Classes
5.0 - 6.0
6.0 - 7.0
7.0 - 8.0
M >= 8.0
Depth Classes
0 - 69 km
70 - 299
300 - 520
Plate Boundaries
Convergent
Diffuse
Transform
Volcanoes
Political Boundaries
International
Administrative
LARGEST EARTHQUAKES IN THE EPICENTRAL AREA 1900 - 2002 (M GE 7.3)
YR MO DY LAT LON DEPTH MAG
1900 1 31 48.000 146.000 450 7.50 1901 4 5 44.500 149.000 35 7.30 1905 9 1 45.000 143.000 250 7.30 1907 5 25 50.500 148.000 600 7.40 1911 5 4 51.000 157.000 240 7.40 1913 8 1 47.500 155.500 0 7.50 1915 5 1 47.500 154.500 35 7.90 1916 10 31 45.400 154.000 0 7.60 1918 9 7 46.812 150.253 242 7.60 1918 11 8 43.816 152.775 64 7.50 1922 10 24 47.267 152.190 35 7.30 1929 1 13 50.447 154.872 35 7.40 1937 2 21 44.241 149.605 56 7.30 1942 11 26 45.405 150.175 76 7.40 1950 2 28 46.000 144.000 340 7.50 1956 10 11 45.967 150.548 105 7.30 1958 11 6 44.329 148.623 35 8.40 1963 10 13 44.770 149.798 13 8.60 1963 10 20 44.772 150.563 28 7.90 1968 1 29 43.586 146.701 40 7.30 1969 1 19 44.891 143.207 237 7.30 1969 8 11 43.478 147.815 46 8.20 1971 9 5 46.555 141.187 18 7.30 1973 6 17 43.223 145.743 43 7.80 1973 6 24 43.356 146.422 33 7.30 1978 3 23 44.982 148.523 21 7.60 1978 3 23 44.359 149.113 8 7.50 1978 3 24 44.233 148.923 12 7.50 1978 12 6 44.455 146.475 181 7.80 1991 12 22 45.589 151.036 25 7.60 1993 1 15 43.027 144.154 100 7.60 1993 6 8 51.195 157.756 61 7.50 1994 10 4 43.829 147.329 35 8.30 1994 10 9 43.966 147.893 35 7.30 1994 10 9 43.754 148.029 36 7.30 1995 12 3 44.708 149.262 24 7.90 2002 11 17 47.979 146.276 498 7.30
Depth Profile A - A'
SEA OF OKHOTSK
17 November 2002 04:53:50.67 UTC47.979 N., 146.276 E.Depth 498 kmMw = 7.3 (USGS)
This earthquake was located northwest of the Kuril Islands in theSea of Okhotsk and was distinguished by its great depth (see Depth Profile A - A'). No aftershocks have been located as of this date.
Felt in eastern Hokkaido. Recorded (3 JMA) in eastern Hokkaido and northern Honshu; (2 JMA) in south-central Hokkaido and northeastern Honshu; (1 JMA) in southwestern Hokkaido and Akita,Ishikawa, Nagano, Yamagato and Yamanashi Prefectures, Honshu. Also recorded (1 JMA) in Kochi Prefecture, Shikoku and Kumamoto Prefecture, Kyushu.
DISCUSSION
This earthquake occurred beneath the Sea of Okhotsk between the Rus-sian Federation island of Sakhalin and the Kuril Islands. Seismicity in this region results from the convergence of the Pacific plate and the NorthAmerican plate. The Pacific plate is subducting beneath the North American plate at a rate of about 80 mm per year. The region near the epicenter contains several significant tectonic features including the Kuril Trench and the parallel Kuril island arc containing numerous vol-canoes. The Kuril Trench marks the surface contact of the Pacific plate and the overriding North American plate.
Subduction zones produce numerous earthquakes from multiple sources.Shallow earthquakes occur within the crust of the overriding plate between the trench and the volcanic arc at the interface between the plates.Deeper earthquakes occur mostly within the subducting plate . Given the earthquake's fault mechanism and depth, it likely results from internal deformation of the Pacific plate as it descends into the mantle (see Depth Profile A - A' panel).