Major Earthquake Strikes Alaska with Magnitude 7.3
A powerful earthquake of magnitude 7.3 on the Richter scale struck Alaska in the early hours of Thursday, according to a statement from the National Center for Seismology (NCS). The quake occurred at a shallow depth of 36 kilometers, which increases the likelihood of aftershocks. The NCS shared details about the event on its social media platform, stating: “EQ of M: 7.3, On: 17/07/2025 02:07:42 IST, Lat: 54.91 N, Long: 160.56 W, Depth: 36 Km, Location: Alaska Peninsula.”
This information was accompanied by a link to the BhooKamp App for those seeking more details. The incident highlights the vulnerability of the region to seismic activity, as shallow earthquakes tend to cause more damage due to their proximity to the surface. The seismic waves generated by such events travel a shorter distance, leading to stronger ground shaking and potentially greater destruction.
Tsunami Warning Issued for Coastal Areas
Following the earthquake, a tsunami warning was issued for parts of coastal Alaska. This alert was reported by the US Tsunami Warning System, emphasizing the need for immediate action. According to the National Weather Service in the United States, a tsunami warning is the most urgent alert, indicating that residents should move to higher ground or go inland. A tsunami advisory serves as a less severe alert, urging people to avoid coastal waters and stay away from beaches and waterways. A tsunami watch indicates that experts are assessing the threat, and individuals should remain updated for further information.
The Alaska-Aleutian subduction system is known for its high level of seismic activity. It has produced more than M8 earthquakes over the last century than any other region globally. These earthquakes, along with coastal and submarine landslides, can generate tsunamis. The area is also home to over 130 volcanoes and volcanic fields, with more than three-quarters of U.S. volcanoes that have erupted in the past two centuries located here.
Increased Risk for U.S. Coastlines
Alaska experiences more large earthquakes than the rest of the United States combined. Over three-quarters of the state’s population resides in areas that could face a magnitude 7 earthquake. This underscores the importance of preparedness and awareness among residents.
The nation’s coastlines are increasingly at risk from earthquake-tsunami events. These hazards often occur together, and distant triggers can lead to severe local impacts, making the issue a global concern. As more people move toward coastal regions, the social implications of these natural disasters are expected to grow, highlighting the need for better disaster management strategies and community resilience.
