Overview of the November 2024 Earthquake Near Valdez, Alaska

An earthquake of magnitude 1.7 occurred 29 miles north of Valdez, Alaska, on November 27, 2024, at a depth of 19 miles. This event is situated in a seismically active region influenced by the subduction of the Pacific Plate beneath North America, and has yet to be reviewed by a seismologist.

On November 27, 2024, an earthquake of magnitude 1.7 struck 29 miles north of Valdez, Alaska, at 04:23:55 AKST, which corresponds to 13:23:55 UTC. The earthquake originated at a depth of 19 miles (30 kilometers). As of the issuance of this report, this seismic event has not been reviewed by a seismologist. The location of the epicenter was approximately 40 miles (64 km) northwest of Thompson Pass and 109 miles (176 km) east of Anchorage, making it a relatively moderate seismic event in a region known for its geological activity.

Alaska, particularly Southcentral Alaska, is seismically active, resulting from the interactions between the Pacific and North American tectonic plates. The dynamics of this region include a megathrust fault associated with the subduction of the Pacific Plate. Notable past earthquakes include the 1964 Great Alaska Earthquake, which remains the second-largest recorded globally. Additionally, the Wadati-Benioff Zone indicates intermediate seismic activity, while crustal seismicity is attributed to numerous local geological structures, capable of generating significant earthquakes.

The recent 1.7 magnitude earthquake near Valdez, Alaska, highlights the ongoing seismic activities characteristic of the region. Understanding the tectonic setting is crucial to prepare for future events, as Alaska’s unique geological features contribute to its seismic risk. Continued monitoring and research are essential to enhance the safety and preparedness of local communities against potential hazards associated with earthquakes.

Original Source: earthquake.alaska.edu