Massive 7.5-Magnitude Earthquake Strikes Off Japanese Coast, Tsunami Alert Issued Immediately

A 7.5-magnitude earthquake struck off the northern coast of Japan on Monday, prompting a tsunami alert from the Japan Meteorological Agency in the affected area. The quake was detected at approximately [location] and its magnitude was preliminarily determined to be 7.5, according to reports. A tsunami warning has been issued for areas near the epicenter due to the earthquake's potential impact on coastal regions. The extent of damage and casualties are still unknown at this time.