jeudi 9 octobre 2014

Un tsunami sur l'île de Pâques



Le centre d'information sismique de Hawaii (Pacific Tsunami Warning Center) vient  d'enregistrer un tremblement de terre de magnitude 7,2 , à 560 km au sud de l'île de Pâques.

A 10 km de profondeur.

Il s'est produit aujourd'hui 9 octobre 2014 à 2h15 UTC soit hier (mercredi 8 octobre ) à 16h15, heure de Polynésie.




Cliquer ici pour aller sur le site : http://ptwc.weather.gov/

Un tsunami de 47cm a été enregistré par la marine chilienne.


Voici le bulletin:

000
WEPA42 PHEB 090451
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0442 UTC THU OCT 9 2014

...PTWC TSUNAMI SUPPLEMENT STATEMENT...


**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

 NOTE THAT PREVIOUS BULLETIN NO. 4 SHOULD HAVE BEEN NO. 2.

 THIS STATEMENT IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
 UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
 MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

 NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
 ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
 INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

  * MAGNITUDE      7.2
  * ORIGIN TIME    0215 UTC OCT 9 2014
  * COORDINATES    32.1 SOUTH  111.0 WEST
  * DEPTH          10 KM / 6 MILES
  * LOCATION       SOUTHERN EAST PACIFIC RISE


EVALUATION
----------

  * AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.2 OCCURRED
    NEAR THE SOUTHERN EAST PACIFIC RISE AT 0215 UTC ON THURSDAY
    OCTOBER 9 2014.

  * A TSUNAMI WAVE AMPLITUDE OF 0.47M AT EASTER ISLAND/ISLA DE PASCUA
    WAS REPORTED BY THE CHILEAN NAVY.

RECOMMENDED ACTIONS
-------------------

  * PERSONS ALONG COASTAL AREAS NEAR THE EARTHQUAKE SHOULD BE
    OBSERVANT AND EXERCISE NORMAL CAUTION. OTHERWISE... NO ACTION
    IS REQUIRED.




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