SHI YOMI, August 5 — An earthquake registering a magnitude of 5 struck 60 kilometres north-northeast of Shi Yomi, India, this morning, at 10:06 UTC, according to the U.S. Geological Survey (USGS). Intriguingly, the depth of this event, at just 10 kilometres, offers insight into how its energy might be experienced at the surface.
The science behind why shallow earthquakes, those less than 70 kilometres deep, often produce stronger shaking at the surface than deeper ones of the same magnitude lies in the direct proximity of the seismic energy release to the Earth’s crust. This particular event, at a depth of 10 kilometres, falls squarely into the category of a shallow earthquake, meaning its effects could be more pronounced for those above the epicentre.
Understanding Seismic Depth
Earthquakes in the magnitude 5 range are classified as moderate. They are capable of causing minor to moderate damage in areas very close to the epicentre. While no tsunami warning was issued following the tremor, at least one person reported feeling the quake.
What researchers found about this region is its notable seismic activity. Over the past two decades, within approximately 300 kilometres of the recent epicentre, at least 26 earthquakes of magnitude 5.0 or greater have been recorded.
This history underscores the dynamic geological forces at play in the area. The strongest among these historical events was a magnitude 6.4 earthquake, which occurred in 2017. Following an earthquake of this size, aftershocks are a common phenomenon.
Seismologists note that these subsequent tremors may persist for days or even weeks. People in the affected area are generally advised to be prepared for further shaking as the Earth’s crust continues to adjust.
The U.S. Geological Survey detected this event through its real-time global seismic monitoring network, a system that continuously tracks seismic activity across the planet. This ongoing vigilance provides crucial data for understanding the complex and active tectonic movements that characterise this part of the world.
