They say long ago somewhere far away an astrologer managed to cause a panic by predicting a devastating volcano. People didn't just flee, they sold their homes for nothing, because they were convinced their homes would be under 3 feet of lava soon.
And that brings us to the key question - is your home worth less, just because everyone on the same streat is selling their houses for pennies? Isn't the opinion of the USGS slightly more important than the opinions of the real estate market?