Earthquakes By Alexandria J Section 1 What where

Earthquakes By Alexandria J.

Section 1: What, where, how and why

What are Earthquakes? The short answer is that earthquakes are caused by faulting, a sudden lateral or vertical movement of rock along a rupture (break) surface. Here's the longer answer: The surface of the Earth is in continuous slow motion. This is plate tectonics--the motion of immense rigid plates at the surface of the Earth in response to flow of rock within the Earth. The plates cover the entire surface of the globe. Since they are all moving they rub against each other in some places (like the San Andreas Fault in California), sink beneath each other in others (like the Peru-Chile Trench along the western border of South America), or spread apart from each other (like the Mid-Atlantic Ridge). At such places the motion isn't smooth--the plates are stuck together at the edges but the rest of each plate is continuing to move, so the rocks along the edges are distorted (what we call "strain"). As the motion continues, the strain builds up to the point where the rock cannot withstand any more bending. With a lurch, the rock breaks and the two sides move. An earthquake is the shaking that radiates out from the breaking rock.

Where do earthquakes occur and why? Earthquakes occur in California, Florida, Alaska and The Pacific ring of fire because that’s where plates meet.

Is Indiana high risked? No not really just the southern part

Section 2 Effecting people’s lives

Earthquakes affect many people's lives People can become homeless and poor

Section 3 emergency Plan Conduct "Duck, Cover and Hold" drills twice a year (April and October) to help train people to stay calm and react instinctively. If all phones are down, be aware that pay phones may still work (they are on a higher operational priority). In a medical emergency during a severe earthquake, be aware that most ambulances will not be available to the general public. Lower all heavy objects located up high and fasten tall furniture, such as bookshelves, to the walls (anchored to studs). When an earthquake hits, take cover, DUCK under a sturdy desk, table, pew or other furniture. If that is not possible, seek COVER against an interior wall and protect your head and neck with your arms. Avoid danger spots near windows, hanging objects, mirrors or tall unsecured furniture. If you take cover under a sturdy piece of furniture, HOLD on to it and be prepared to move with it. Hold until the ground stops shaking and it is safe to evacuate. After a severe earthquake, evacuate the building, taking extra precautions to watch for falling glass and building materials from high exterior walls. Move away from the building to an open area. Stay off the street to avoid emergency vehicles. Do not reenter the

Immediately after evacuating, take a roll of all known persons who were inside the building, check for any injuries and treat accordingly. Survey the area around you and do not touch any downed electrical lines. Do not smoke or light any fires; there could be gas leaks. Listen for news and instructions from church officials, emergency workers, and local radio stations__________________. Do not shut off the gas main unless you suspect a gas leak. Become familiar with the locations of the Electrical, Gas and Water Main shut offs. Know where the proper tools to operate the mains are located. Know where emergency supplies are located

to an open area. Stay off the street to avoid emergency vehicles. Do not reenter the building until it has been inspected by a competent individual (maintenance personnel, architect, fire department, etc. ). Immediately after evacuating, take a roll of all known persons who were inside the building, check for any injuries and treat accordingly. Survey the area around you and do not touch any downed electrical lines. Do not smoke or light any fires; there could be gas leaks. Listen for news and instructions from church officials, emergency workers, and local radio stations__________________. Do not shut off the gas main unless you suspect a gas leak. Become familiar with the locations of the Electrical, Gas and Water Main shut offs. Know where the proper tools to operate the mains are located. Know where emergency supplies are located

The End Thanks Mrs. Burt