What the Democratic People's Republic of Korea claimed was a "successful hydrogen bomb test" brought a jolt on Wednesday morning to residents of Hunchun, a border city in Jilin province that is near the test site.

A woman who manages a farm equipment station in Hunchun's Fusong township and who wished to be identified only as Lei told China Daily that she felt a tremor around 9:30 am when she was in her office.

A desk, chair and flowerpot on the windowsill shook, Lei said, adding that the jolt lasted about three seconds, stopped for two seconds and then restarted for another three seconds.

Nie Qiming, a resort owner, said he did not feel a strong tremor but heard a big bang.

The city center of Hunchun is about 14 kilometers from the Shatuozi border port and 45 km from the Quanhe port.

Global Times, a Beijing-based newspaper, quoted an office worker surnamed Ren as saying that he and his colleagues ran out of their office building after a strong shake.

A restaurant owner surnamed Wan told the newspaper that the jolt was very strong and that many people almost fell over.

(China Daily 01/07/2016 page1)