It's an earthquake! Almost without thinking, Chen Xin had already figured out what happened.
However, the intensity of the earthquake was not high, and it didn't last long, stopping after a brief shake.
Even so, Chen Xin didn't dare to be complacent. He quickly pushed the two air conditioning outdoor units back inside the shelter and began checking the facilities inside for any damage.
Although the shelter was built to the highest standards and theoretically shouldn't collapse even in a magnitude six earthquake, Chen Xin couldn't discern the magnitude of the earthquake that just occurred.
Moreover, it's better to be safe than sorry. If something went wrong and he didn't notice, it could indeed be a life-threatening situation.
Fortunately, after a round of inspections, the quality of the shelter's construction was indeed up to standard, with no cracks or other damages. Even when Chen Xin activated the system view, he didn't find any areas needing repair.