At 01:41 in the morning of the 23rd of March, the southeast coast of Taiwan experienced a magnitude 6.6 earthquake in the ocean outside Hualien County. The quake was felt island wide and some of the factories that operate 24/7 evacuated staff as a precautionary measure. All affected companies claim to have resumed operations later the same day, after checking that no damage was caused by the quake. The southeast of Taiwan kept being hit by minor quakes for the rest of the night and day, with some being felt across the island.

TSMC and UMC both claimed that the quake had a minimal effect on production, although production equipment had gone into self-protect mode, which was largely the reason for no production issues taking place. Powerchip Semiconductor on the other hand had a two to three hour production loss and Vanguard International Semiconductor was reported saying they were checking for defects in their production. AU Optronics and Innolux were also saved by their various safeguards against earthquake damage and both companies were expecting to return to normal production shortly. Other companies are said to have reported issues with their production equipment, but no damage to the actual products they produce.