Seisme Flashcards

1
Q

Quesqu’un Séisme?

A

Vribation naturelle de la terre produite par la rupture d’énormes masses de roc sous la surface

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2
Q

4 constitution des séisme?

A

Foyer, Épicentre,profondeur, Temps d’origine

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3
Q

phénomene élastique

A

revient a son point de départ

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4
Q

phénomene plastique

A

ne revient pas a son point de départ

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5
Q

Sismometre

A

enregristre les ondes sismiques

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6
Q

seismometre

A

partie qui écrit

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7
Q

seismogramme

A

papier

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8
Q

3 types d’ondes

A

ondes de compressions,cisaillement et surface

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9
Q

P- compression

A

premiere, faible amplitude, période de l’ordre de la secondaire

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10
Q

S- cisaillement

A

2eme, amplitude et période > P

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11
Q

L- suface

A

vitesse constante, voyage en surface, grande amplitude, grande période

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12
Q

Max Richter

A

9

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13
Q

Max Mercalli

A

12

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14
Q

plus grand séisme enregistrer?

A

Chili 9.5

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15
Q

Quels sont les 2 zones importantes des séisme au canada ?

A

Est et Ouest

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16
Q

Zone de Charlevoix

A

Météorites

17
Q

Zone du St-laurent

A

Ancien rift

18
Q

Ouest

A

Convergeance entre les plaques du Pacifiques, juan de fuca et amérique du nord