![2002 Alaska Earthquake/NASA](//images.ctfassets.net/c55i45ef3o2a/3uTt7nWmL4HnFcqV979252/cd91f23453f8cb4f793397efc7d3c84f/2002_Alaska_Earthquake.jpg)
*The Nov. 3, 2002 Great Alaskan earthquake registered a 7.9 magnitude -- the largest recorded in the United States since the 1965 Rat Islands tremor. Photo: NASA.*

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On Nov. 3, 2002, the Great Alaskan tremor struck. It was officially called the Denali Earthquake because its epicentre was 66 km east-southeast of Denali National Park, Alaska, the 49th state in the U.S.  

The earthquake registered a 7.9 magnitude -- the largest recorded in the United States since the 1965 Rat Islands tremor. But were there warning signs of the massive quake? Eleven days prior, on Oct. 23, there was a 6.7-magnitude earthquake centred on the Denali Fault. So, by definition, any other quake registering a lower magnitude would be considered an aftershock. 

However, due to its occurrence as close as it was to the Nov. 3 event in date and location, this particular earthquake is regarded as a foreshock and was concluded to have likely been the catalyst that probably directly triggered the main shock.

Due to the remoteness of the epicentre, there were no fatalities and only a few injuries. The quake's depth was shallow enough for its shock to be registered as far away as Seattle, generating seiches or standing waves in enclosed or partially enclosed bodies of water as far away as Texas and New Orleans.

On today's podcast, Chris Mei talks about the Great Alaskan tremor, its intensity and why it was so powerful, as well as the resulting aftermath and the limited casualities it caused.

"This Day In Weather History” is a daily podcast by The Weather Network that features unique and informative stories from host Chris Mei.

November 3, 2002 - The Great Alaskan Earthquake

Severe

The Nov. 3, 2002 Great Alaskan earthquake registered a 7.9 magnitude -- the largest recorded in the United States since the 1965 Rat Islands tremor.

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