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23 Cards in this Set
- Front
- Back
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Active |
Volcano currently eripting |
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Dormant |
Volcano that hasn’t erupted for at least 10 thousand years but scientist think may erupt again. |
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Extinct |
Volcano that scientist don’t expect to erupt ever again. |
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Magna |
Molten rock found beneath earths surface |
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Lava |
Molten rock found in top of earths surface |
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Cinder cone |
Formed from small explosive eruptions. Magma falls back to earth creating. |
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Composite volcano |
Steep coned volcano. Has very explosive eruptions. Has gassy magma. They’re formed from layers of lava and ash. |
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Tropical storm |
Winds turn around an eye. Winds can reach 39mph |
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Hurricane |
When circulating winds reach 74mph |
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Hurricane eye |
Calm area in center of storm. |
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Hurricane eye wall |
Band if clouds surrounding eye where strongest winds normally found. |
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Hurricane watch |
A message issued when hurricane is likely to hit land issued 24-36 hours out. |
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Hurricane warning |
Warning issued when hurricane is likely to hit less than 24 hours out. |
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Safir-Simpson scale |
System used to rate intensity if storm by wind speed. |
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Eta |
Estimated time of arrival |
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Volcanic tremors |
Happens when magma shifts around under surface as it tries to make room for itself. Warning sign danger is increasing. |
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RF |
Rock fall tremors occur when rocks fall down sides of volcanoes as it shakes. Causing ground to vibrate. |
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Land deformation |
As magma pushes up the land up top may start to budge. |
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ERT |
emergency response team |
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Pyroclastic flows |
Deadly fast volcanic flow containing rock, gas and ash. |
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lahar |
A volcanic mud flow. Caused by rain or snow mixing with ash on volcano. |
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Tephra |
Solid material ejected from volcano. |
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Blocks or bombs |
Large pieces larger than 64mm ejected from volcano |
