I'm just as happy as a clam in FL   Personally I think it's all about which you prefer - Hurricanes, Earthquakes, Tornados, snow or scorpions. 

I believe the damage from the earthquake would be bigger caused by aftermath fire than by the earthquake itself. 

There are no earthquakes like California and Washington.

Was there an earthquake?

Optional things like slab leak coverage, earthquake, tenant damages, vacancy allowances and other things not normally covered if you feel it is worth it.

Deal seems to cash flow less and less the more I look into it.Rents(under market due to older but decent kitchens and bathrooms): $4,250 total.Mortgage payments including insurance and taxes (earthquake insurance): $2,800 a month.Reserves $800 a month.Water/sewer/garbage: $500 a month proforma...Law mowing: $200 a month.

and are they quoting you for earthquake coverage? 

If you're going the umbrella insurance route, make sure it will cover you for several things including just the routine slip and fall (like mold or earthquake).

Contingency planning (stress testing and mental rehearsal).When I bought my personal residence in the 1980s, for example, my budget was tight and I forsook earthquake insurance (most Californians don't have it).

I will look for the area where the property tax is low, limited exposure to natural disasters (hurricane, wildfire, earthquake, etc.), and landlord friendly.