DEMOCRATIC PEOPLE&#039;S REPUBLIC OF KOREA, - : This undated picture released from North Korea&#039;s official Korean Central News Agency (KCNA) on January 5, 2015 shows North Korean leader Kim Jong-Un (C) inspecting a firing contest of Korean People&#039;s Army artillery units at an undisclosed location in North Korea. An earthquake in North Korea on January 6 was a &quot;suspected explosion&quot;, Chinese officials said, following fears of another nuclear test by Pyongyang. AFP PHOTO / KCNA via KNS REPUBLIC OF KOREA