A powerful 6.7-magnitude earthquake struck the North Pacific Ocean on Friday, according to the United States Geological Survey (USGS). The tremor occurred at 11:44 a.m. Japan time, approximately 71 miles northeast of Hachinohe, Japan. This event follows closely on the heels of a larger quake in the same region just days prior, and it coincides with a mega-quake advisory issued for parts of Japan's coastline.
The USGS's initial assessment may be subject to revision as seismologists analyze the data. The shake-severity map could also be updated based on additional information gathered about the earthquake. It's important to note that the map indicates areas with a shake intensity of 4 or greater, which the USGS defines as 'light.' However, the earthquake's impact may extend beyond these areas.
Aftershocks, which are smaller earthquakes following a larger one, can occur in the region for days, weeks, or even years. These aftershocks can be as strong as or stronger than the initial quake and may continue to affect already damaged locations. The USGS provides detailed information on the Modified Mercalli Intensity scale, categorizing shaking intensity. When aftershock data is available, the USGS updates the maps and charts to include earthquakes within 100 miles and seven days of the initial quake, all times are in Japan time.
This earthquake serves as a reminder of the ongoing seismic activity in the region and the potential for aftershocks. As the USGS and seismologists continue to monitor the situation, the public can stay informed through official sources and updates.
