Earthquakes
Alaska Earthquake Alert: Map Shows Areas With Over 95% Risk
Fairbanks, AK – A newly highlighted earthquake hazard map is drawing attention to Alaska's seismic risks this week, showing that some parts of the state face greater than a 95% modeled chance of exper
By Miles Carter · 2026-10-12T23:29:01.661Z
Fairbanks, AK – A newly highlighted earthquake hazard map is drawing attention to Alaska's seismic risks this week, showing that some parts of the state face greater than a 95% modeled chance of experiencing damaging earthquake shaking within the next 100 years.
According to the National Weather Service NWS Fairbanks office, the U.S. Geological Survey developed the hazard information using decades of earthquake records collected through the Alaska Earthquake Center's seismic monitoring network.
The map, shared during Earthquake Preparedness Week, illustrates how earthquake hazards vary significantly across Alaska.
Portions of southern Alaska, including areas near Anchorage, the Kenai Peninsula, Prince William Sound and the Alaska Peninsula, fall within some of the highest hazard categories.
The map identifies several probability ranges, from less than 5% to greater than 95%, representing the estimated likelihood of damaging shaking over a century.
These figures describe long term seismic hazards rather than predictions of an earthquake occurring today or this week.
The NWS also highlighted Alaska's extensive network of geological faults, which contribute to the state's frequent earthquake activity.
The Pacific Plate moves relative to the North American Plate, creating enormous geological stresses that can eventually be released through earthquakes.
Major fault systems include the Denali Fault, the Aleutian Megathrust and the Queen Charlotte Fairweather Fault.
According to the educational material shared by forecasters, approximately 90% of earthquakes worldwide occur near tectonic plate boundaries.
Residents living near active faults may experience stronger shaking, although earthquake intensity also depends on factors including distance, depth and local ground conditions.
The information serves as a reminder for Alaskans to review emergency supplies, secure heavy furniture and practice protective actions such as Drop, Cover and Hold On.
While scientists cannot predict exactly when a major earthquake will strike, hazard maps help communities understand their exposure and prepare for future events.