Magnitude 4.4 - 58 miles S of Port Alexander
July 4, 2019 04:51:36 AKDT (July 4, 2019 12:51:36 UTC)
55.4477°N 135.1206°W Depth 0.3 miles (0 km)
No reports of this event being felt have been received at this time.
This event has been reviewed by a seismologist
- 78 miles (126 km) W of Craig
- 80 miles (129 km) W of Klawock
- 85 miles (137 km) SW of Point Baker
- 92 miles (149 km) W of Hydaburg
- 102 miles (165 km) W of Thorne Bay
- 107 miles (173 km) W of Kasaan
- 111 miles (179 km) S of Sitka
- 115 miles (186 km) NW of Dixon Entrance
- 115 miles (186 km) SW of Kake
- 126 miles (204 km) SW of Petersburg
- 128 miles (207 km) SW of Wrangell
- 137 miles (222 km) W of Ketchikan
- 199 miles (322 km) S of Juneau
- Magnitude type: Ml2
- Event type: earthquake
Tectonic Setting of Southeast Alaska
Earthquakes in Southeast Alaska have shallow depths and are generally located along the Queen Charlotte and Fairweather faults, both of which are major transform plate boundaries. The Queen Charlotte Fault runs between the Pacific and North American plates, while the Fairweather Fault runs between the Yakutat microplate and North American Plate. The entire length of this fault system ruptured in major earthquakes over the past 90 years. The most significant event was a 1949 M8.1 earthquake that began in British Columbia and ruptured both south and north for a total of about 300 miles (483 km), crossing the border with Alaska. Other significant events in the region were the 1927 M7.1 event north of Sitka, and the 1958 M7.7 Lituya Bay, the 1972 M7.6 Sitka, and the 2013 M7.5 Craig earthquakes. The 2013 Craig Earthquake re-ruptured the northernmost part of the 1949 rupture zone.