A Tsunami occurred in Tonga and reached the west coast of the US. A warning apparently was issued that it was going to hit our area in Southern California around 8:00am. This event occurred about two hours later. Apparently the stress from the surge broke off one of the docks. This one was right at the corner and was the most exposed. Two boats on the dock floated off with the dock to the other side of the basin. I was here during the Japan Tsunami surge and that was very strong but no damage occurred. This one I didn't know about. I was asleep when it happened.