August 17, 2024 16:03:53 AKDT (August 18, 2024 00:03:53 UTC)
63.4418°N 149.5346°W Depth 34.6 miles (56 km)
This event has not been verified by a seismologist
- 21 miles (34 km) west of Denali Park
- 34 miles (55 km) southwest of Healy
- 44 miles (71 km) east of Kantishna
- 63 miles (102 km) south of Clear
- 126 km south of Nenana
- 79 miles (128 km) north of Talkeetna
- 90 miles (145 km) east of Lake Minchumina
- 106 miles (171 km) southwest of Salcha
- 107 miles (173 km) southwest of Ester
- 111 miles (179 km) southwest of Fairbanks
- 112 miles (181 km) SW of Eielson AFB
- 154 miles (249 km) north of Anchorage
- Size Type: Mm2
- Event type: Earthquake
Tectonic position of the Denali Fault
The Denali Trench is a major intracontinental right-lateral strike-slip fault that partially accommodates the oblique collision of the Yakutat Block with the Alaskan margin, and extends from northwestern British Columbia into central and western Alaska. The largest earthquake recorded on the Denali Trench was a magnitude 7.9 earthquake on November 3, 2002. Its rupture extended for nearly 435 km along the central Denali Trench system. This event was preceded by the magnitude 6.7 Nenana Range earthquake on October 23, which ruptured 40 km of the Denali Trench west of the magnitude 7.9 event. It is a typical behavior of these large inland right-lateral faults to produce very low seismic backgrounds between major ruptures separated by hundreds of years, followed by multi-year aftershock sequences. Another notable feature of the Denali Fault System is the Kantishna seismic cluster, located north of the main fault line in Denali National Park. This cluster generates dozens of small, shallow earthquakes daily. The strongest known earthquakes in this cluster are on the order of magnitude 5, but these are rare. This cluster is thought to accommodate deformation between the Denali Fault and the Minto Flats seismic zone to the north.
