Japanese troops landed in Tagbilaran on 17 May 1942. Boholanos struggled in a guerilla resistance against the Japanese forces. Bohol was later liberated by the local guerrillas and the Filipino and American troops who landed on 11 April 1945. A plaque placed on the port of Tagbilaran commemorating the liberation reads:  The convoy taking the Filipino and American liberation forces to Bohol consisted of a flotilla of six landing ships (medium), six landing crafts (infantry), two landing crafts (support), and one . Upon arrival, the reinforced battalion combat team advanced rapidly to the east and northeast with the mission of destroying all hostile forces in Bohol. Motor patrols were immediately dispatched by Col. Considine, Task Force Commander, and combed the area to the north and east, approximately halfway across the island, but no enemies were found during the reconnaissance. Finally, an enemy group of undetermined strength was located to the north of Ginopolan in Valencia, near the Sierra-Bullones boundary. By 17 April the Task Force was poised to strike in Ginopolan. The bulk of the Japanese force was destroyed and beaten in the ten days of action. Bohol was officially declared liberated on 25 May 1945 by Major General William H. Arnold, Commander of the Americal Division. About this time, most officers and men of the Bohol Area Command had been processed by units of the Eighth United States Army. On 31 May 1945, the Bohol Area Command was officially deactivated upon orders of Lt. General Robert L. Eichelberger, Commanding General of the Eighth United States Army, together with the regular and constable troops of the Philippine Commonwealth Army, Philippine Constabulary, and the Boholano guerrillas. During the from March to August 1945, Filipino troops of the 3rd, 8th, 83rd, 85th and 86th Infantry Division of the Philippine Commonwealth Army and 8th Constabulary Regiment of the Philippine Constabulary captured and liberated the island province of Bohol and helped the Boholano guerrilla fighters and U.S. liberation forces defeat the Japanese Imperial forces under General Sōsaku Suzuki. At 8:12 a.m. (PST) on 15 October 2013, the island province suffered a severe earthquake with a magnitude of 7.2 on the Richter scale. Its epicenter was at ( of Sagbayan and from Manila), and its depth of focus was . The quake was felt as far as Davao City, Mindanao.