Look for the signs:

• Tremors & pre shocks
• Wildlife leaving the area
• Fault zones
• Near by Volcano (maga flow)
• The body can be sensitive to low frequency (Schumann Resonance) and the emission of radon gas.  This is called the Charlotte King Effect.  People can have strange cravings of popcorn, corn chips. crave magnesium, headaches, ringing in the ears.  People may also seek out Tums and other medications to settle the stomach.

What could happen, starting with the rule of 3s.

• Security: Chaos in the streets.  Expect anything and everything.  Many people will also need assistance.  Weigh your options and do what is necessary for YOU and YOUR FAMILY.
• Air Quality: Probably going to be a lot of dust in the air.  Mask if you can.  If near fallen buidlings, try to avoid breathing in the dust.
• Shelter:  Not safe. Buildings collapse os lose structural integrity. 
• Water: Not safe.  Expect no water because of lack of power, Water probably also contaminated with chemicals and bacteria.
• Food: Stores will have problems restocking.
• Communications: Cell Towers will probably lose power or be destroyed.  Together with everyone trying to make calls, expect 
• No electricity, Live power lines on the ground.
• No gas, broken gas lines
• Roads may not be drivable.

What comes next:

• Expect more after shocks
• Massive cleanups.
• Life is going to stop for a few days.

What you need:

• The basics.  Plan for at least a months worth.
• It will be a difficult situation.  Kids would probaby be safer away from the city.
• Consider leaving.