Nevada and California share a border, so zero is an appropriate answer.
20 miles or so
No president has come from Nevada so far.
Earthquakes can occur in Nevada, which is not far from earthquake-prone California. Tornadoes occur in Nevada on occasion, but they are rare and usually weak. Nevada is too dry and too far inland to get hurricanes.
Wonderful!
Califoria
7:10
It's about 2.5 hours from Marbella to Sierra Nevada
Answer Nevada, south side
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California I love you.
a very long way
994663 km