 Surface faulting  Ground shaking  Landslides  Liquefaction  Tsunamis Pair share: if you see the tide go WAY out what should you do and why?

 Surface faulting is when a shallow earthquake causes the ground to split & shift  Ground shaking buildings can be damaged and the ground can shift.  The intensity of the shaking depends on: the magnitude and proximity of the earthquake & the soil type

 When water and soil are mixed, the ground becomes very soft & acts similar to quicksand  Liquefaction can cause a great deal of damage, especially in urban areas  If liquefaction occurs under a building, it may start to lean, tip over, or sink several feet. Pair share: explain the diagram above to your partner.

 Ground subsidence is the lowering of the land surface  Caused by either liquefaction causing the settling of sediment or movement along the fault Afterbefore

 landslides occur on sloping land that is unstable  they cause $1 billion and deaths in the US each year.  Earthquakes, floods, and fires increase the hazard Pair share: why do you think each of the 3 things listed above increase landslide hazard?

 These fires can be started by broken gas lines and power lines, or tipped over wood or coal stoves.  They can be a serious problem, especially if the water lines that feed the fire hydrants are broken, too.  After the Great San Francisco Earthquake in 1906 most of the city was destroyed and 250,000 people were left homeless.

 Used to predict:  where earthquakes are likely to occur  How much shaking there will be  Information used to make the map:  Where faults are  Type of soil/rock  Earthquake history White board: What color is Sonoma on the map?

 Have an emergency kit  nonperishable food  water  First aid kit  Flashlight and batteries  Radio  cash

 Have phone numbers of family members  Know where the safest places in your home are  Have an evacuation plan including where to meet  Know where the gas and water lines are to your home and how to shut them off  Make your home earthquake safe: secure large objects & keep heavy items on lower shelves  Do hang mirrors or other glass items over your bed

1.What is liquefaction? 2.Name 3 things you should have in an earthquake preparedness kit. 3.What do earthquake hazard maps tell us?