I was driving 97 Honda civic and i hit a minor bump and both air bag went off!

What is your question?

what could have caused that i remember it was raining as well and it broke the wind shield had it replaced and i re ordered Both as a Pair off ebay! i got em already but afraid of installing em not until i know why it happend! i did took off the front bumper but not sensor at all was found, does this car has a impact sensor SRS light is still lit up i just dont wanna rest it and installed it and have that experience happend again while im driving