After receiving a warning, a person may have a few seconds or in some cases significantly longer to take action, but if the epicenter is very close there may be cases in which strong tremors come ahead of any warning.
A person may have a few seconds to take action. A person may have in some cases significantly longer to take action. There may be cases in which strong tremors come ahead of any warning. The epicenter is very close. A person is receiving a warning.