Japan’s Ishikawa Prefecture was struck by a 5.9 magnitude earthquake early Monday, but authorities have not issued a tsunami warning, easing concerns for residents and officials. What Happened: NHK World-Japan reports that a 5.9 magnitude earthquake hit Ishikawa Prefecture on Monday morning, with no tsunami threat detected. The Japan Meteorological Agency stated that the earthquake occurred at approximately 6:31 a.m. and had a depth of 10 kilometers (6.2 miles). The cities of Wajima and Suzu experienced strong tremors, reaching an upper 5 on the Japanese intensity scale. The quake also affecte…