A total of 18 earthquakes have struck Alaska today alone, the biggest being a 4.3 earthquake about 68km from Kobuk. The previous day a huge magnitude-5.2 earthquake struck at 9.27pm UTC time. The earthquake struck some 66km from Kobuk, at a depth of 19.7km. Just a few hours later, at 11.33pm UTC time, a magnitude-4.5 earthquake struck 107km from Cold Bay.
According to the US Geological Survey (USGS), aftershocks are expected to continue.
The USGS aftershock forecast reported: “More earthquakes than usual (called aftershocks) will continue to occur near the mainshock.
“When there are more earthquakes, the chance of a large earthquake is greater which means that the chance of damage is greater.
“The USGS advises everyone to be aware of the possibility of aftershocks, especially when in or around vulnerable structures such as unreinforced masonry buildings.
“This earthquake could be part of a sequence. An earthquake sequence may have larger and potentially damaging earthquakes in the future, so remember to: Drop, Cover, and Hold on.”