I think we had a Tsunami warning about the same time, in Washington State. The coast line was evacuated, news crews made their way to the beaches, to report.....a large wave! Nothing happend. But, the system worked, and it was very good practice.
I remember a rather scary day. My Navy husband was deployed, of course. It took me nearly two hours go get home from Honolulu to where we lived on base on the water. I passed our kids on the way onto the base. They yelled that they left a note on the door for me. I had to beg security to let me go to our quarters to get that note. I dumped out the laundry and filled the baskets with photo albums. Then I grabbed the parakeet, the kids favorite stuffed animals, and the dress I had bought to welcome my husband home two days later. Drove like a bat until I ran into a long line of traffic just sitting still. As the time approached cars went off road and began to take the red clay sugarcane roads to higher places. From a hill I could see the ships that had left Pearl and a row of sailboats sitting about half a mile to sea and a row of crazy surfers along the break waiting for the Big One. I got my telephoto lens on the camera just in time to not take a photo. So thankful there was nothing to photograph. I couldn't find the kids until 8 that night. We stayed with friends on the hill until they let us move back into housing.