Japan’s Meteorological Agency mistakenly issued an early earthquake warning indicating a magnitude 9.9 tremor, while the actual earthquake was measured at magnitude 6.9 by the United States Geological Survey (USGS).
The discrepancy between the initial warning and the recorded magnitude raised concerns about the accuracy of the early alert. However, no tsunami alert was issued following the earthquake.
The incident highlights the importance of accurate seismic data and reliable early-warning systems in Japan, a country highly vulnerable to earthquakes due to its location along the Pacific Ring of Fire.
Further details about the cause of the error, the location of the earthquake, and whether the agency has issued an official explanation were not immediately available.
