# 5.7-Magnitude Earthquake Strikes Central Japan At least 20 people injured in Aichi prefecture following early morning seismic activity. - **Source:** [The Straits Times – Asia](https://www.straitstimes.com/asia) - **Published:** 2026-11-07 - **Topic:** [world](https://brifing.si/c/world) - **Original article:** - **On Brifing:** https://brifing.si/s/a743e79e-6151-4cd9-92ae-9ec598eb616f ## Early Morning Seismic Event A 5.7-magnitude earthquake struck central Japan at 1:04 am on November 8. The tremor originated in the western part of Shizuoka prefecture at a depth of approximately 40 kilometers. Authorities confirmed the event occurred during the early morning hours, catching many residents off guard while they were inside their homes. ## Casualties in Aichi Prefecture At least 20 individuals sustained injuries within Aichi prefecture as a direct result of the shaking. Local emergency services are currently assessing the extent of these injuries and providing necessary medical assistance. While the number of casualties is currently limited, authorities remain vigilant as they continue to monitor the affected regions. ## Seismic Intensity Scale Readings The Japan Meteorological Agency recorded an upper 5 intensity on the Japanese seismic scale in Chita, located in Aichi prefecture. Additionally, a lower 5 intensity was registered across various parts of Aichi, Nagano, and Gifu prefectures. These readings indicate significant shaking capable of causing structural damage to buildings and local infrastructure. ## Government Response and Coordination Following the earthquake, the Japanese government immediately established a dedicated liaison office to coordinate the emergency response. This office serves as a central hub for gathering real-time data and managing communication between local prefectures and national authorities. Officials are working to ensure that aid reaches the most impacted areas promptly. ## No Tsunami Risk Reported Despite the magnitude of the earthquake, the Japan Meteorological Agency officially confirmed that there is no risk of a tsunami. This assessment provides immediate relief to coastal communities that are often vulnerable to secondary maritime threats after seismic events. Residents in the affected prefectures were advised to remain cautious of aftershocks. ## Geological Context of Shizuoka Shizuoka prefecture, where the epicenter was located, is situated in a region known for frequent tectonic activity. The 40-kilometer depth of this quake is characteristic of the complex fault lines running through central Japan. Geological experts continuously monitor these zones to better understand the stress accumulation patterns within the Earth's crust. ## Infrastructure and Safety Protocols Japan maintains rigorous building codes designed to withstand significant seismic forces, which likely mitigated more severe damage during this event. Emergency protocols were activated immediately, ensuring that public information channels remained open. Authorities are now conducting inspections of critical infrastructure, including transport networks and utility lines, to ensure ongoing public safety. ## Ongoing Monitoring and Assessment While the immediate danger has passed, the Japan Meteorological Agency continues to track seismic activity in the region. Officials have urged residents to stay informed through official channels and to be prepared for potential aftershocks. The focus remains on recovery efforts and ensuring that all injured individuals receive appropriate medical care. ## Sources covering this story - https://www.straitstimes.com/asia/east-asia/5-7-magnitude-quake-strikes-central-japan-at-least-20-injured-in-aichi-prefecture — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._