Potres in tsunami

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Potres in tsunami 11. marca 2011

na Japonskem 

Katsushika Hokusai: Veliki val pred Kanagawo (iz

zbirke 36 pogledov na goro Fuji)

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Datum 

Čas (h:m:s -

UTC)  Območje 

Zem.

širina 

Zem.

dolžina 

Globina

hipocentra  Magnituda  Sopojavi 

22.5.1960  19:11  Pred obalo južnega Čila  -39.5  -74.5  60  9.5  tsunami 

28.3.1964  3:36  ZDA (Aljaska)  61.1  -147.5  23  9.2  tsunami 

9.3.1957  14:22:31.9  ZDA (Aljaska)  51.292  -175.63  33  9.1  tsunami 

4.11.1952  16:58  Rusija (polotok

Kamčatka) 

52.75  159.5  45  9.0  tsunami 

26.12.2004  0:58:53.4  Indonezija (pred obalo

Sumatre) 

3.295  95.982  30  9.0  tsunami 

11.3.2011  05:46  Pred vz. obalo Japonske 38.322  142.369  24  9.0  tsunami 

31.1.1906  15:35  Pred obalo Ekvadorja  1  -81.5  25  8.8  tsunami 

16.11.1907  10:10  Peru  -8  -76.8  150  8.7 

3.1.1911  23:25  Kazahstan (Almaty)  43.5  77.5  25  8.7 

15.6.1911  14:26  Japonska (otočje

Ryukyu) 

29  129  160  8.7  tsunami 

24.11.1914  11:53  Japonska (otočje

Volcano) 

22  143  110  8.7 

4.2.1965  5:01:21.6  ZDA (Aljaska - Aleuti)  51.29  -178.55  36  8.7  tsunami 

28.3.2005  16:09:36.5  Indonezija (Sumatra)  2.085  97.108  30  8.7  tsunami 

22.8.1902  3:?  Kitajska (Xinjiang),

Kirgizija 

40  77  60  8.6 

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• Tsunami povzroči podmorskipotres, ob katerem pride do

vertikalnega premika. Ob tem

se del energije prenese v

oceansko vodo, ki vzvalovi in tivalovi se z veliko hitrostjo

širijo na vse strani (500–900

km/h). Na odprtem morju ima

val veliko valovno dolžino in

majhno amplitudo (do nekaj

dm) ter periodo od 10 min do 2h. Ko se valovi približajo obali,se valovna dolžina zmanjša,

prav tako hitrost (ok. 20 m/s),

višina pa hitro poveča in nato

silovito plusknejo na obalo ter

povzročijo uničenje. 

http://www.seed.slb.com/flash/science/features/earth/livingplanet/tsunami_wa

ve/en/index.htm?width=770&height=370&popup=true 

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http://nctr.pmel.noaa.gov/Dart/ 

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http://www.emsc-csem.org/#2w

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Vir:

http://itic.ioc

-unesco.org

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• Ob potresu 26.12.2004 se je po računalniškem modelu burmanskaplošča premaknila do 20 m proti JZ (v globini 18 km), na površinivertikalni premik do 5 m, horizontalni premik do 11 m. Na levi sliki

vertikalni premiki, na desni sliki horizontalni premiki.

•  (Vir: http://earthobservatory.nasa.gov/NaturalHazards)

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• Do premika plošč je prišlo narazdalji skoraj 1200 km,

količina nakopičene energije je bila tolikšna, da je nastaloveč deset popotresnih

sunkov z magnitudo nad 7.0.• Tu se indijsko-avstralska

plošča podriva podburmansko (povprečno 50mm/leto), na stiku nastal

Sundski globokomorski jarek.

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Izolinije potovanja tsunamijev 26.12.2004

(Vir: Tsunami Laboratory)

http://tsun.sscc.ru

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http://www.youtube.com/watch?v=LEtN8x1pD8w 

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http://www.noaanews.noaa.gov/stories2005/s2365.htm 

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Mreža postaj za opazovanje nevarnosti tsunamijev 

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Širjenje tsunamija 2h 21 min po potresu 

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Tsunami v Natoriju

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Tsunami v Kesennumi

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Tsunami v Iwanumi

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Novi valovi prihajajo proti Natoriju

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Kesennuma – po tsunamiju

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Iwaki – po tsunamiju

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Letališče Sendai – po tsunamiju

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Blizu letališča Sendai – po tsunamiju

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Natori – po tsunamiju

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Natori – po tsunamiju

Požar v rafineriji Cosmo v Ichihari

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Požar v rafineriji Cosmo v Ichihari 

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Letališče Sendai – po tsunamiju

Tsunami v mestu Kesennuma

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Tsunami v mestu Kesennuma

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Tsunami pri mestu Asahikawa

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Natori – požar po potresu in tsunamiju 

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Pristanišče Hitachinaka pri Chibi po tsunamiju 

Tsunami v pristanišču Onahaka pri Iwakiju

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Tsunami v pristanišču Onahaka pri Iwakiju 

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Požar po potresu v tovarni pri Sendaiju 

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