There is no one definitive answer to this question. It depends on the age and construction of your home, as well as its proximity to fault lines. However, it is always a good idea to consult with a professional to get a specific assessment of your home's risk. Retrofitting an older home can be expensive, but it is definitely worth it in order to ensure the safety of you and your family in the event of an earthquake.

There is no one definitive answer to this question. Every home is different and seismic risk varies from place to place. However, it is generally recommended that homes in areas of high seismic risk be retrofitted as a precautionary measure against earthquake damage. If you are unsure whether or not your home needs retrofit, it is best to consult a professional engineer who can assess your home's specific seismic risk and recommend the necessary measures to protect it.