Another Earthquake in Chile - 3 in 3 days

Woke up today to another earthquake. Yesterday there was one in the North of Chile. That equals 3 quakes in 3 days! Scary considering they might be pre-tremors. I hope that we don't get a big earthquake here. No one else seems even the slightest bit concerned about an earthquake in Santiago. I've only been in one earthquake before, in Seattle and it was less powerful than the 2 I've felt on Saturday and today (Monday).