[Danimal16]

And to think the 64 Alaska Quake shook for 4-5 minutes.

The strong ground motion reported in the Anchorage area lasted about 4-5 minutes which triggered many avalanches and landslides - some being tsunamigenic. Ground deformations were extensive with some areas east of Kodiak being raised by 30 feet and areas about Portage being dropped by 8 feet (Pflaker, 1964). The rise is estimated to come in two thrusts of about 5 meters each. The maximum intensity reported was XI on the modified Mercalli Intensity scale, indicating major structural damage, and ground fissures and failures. This scale is a 12-point one usually given in roman numerals ranging from I, (not felt/no damage) to XII (total destruction many lives lost). From this event, significant damage covered an area of about 50,000 square miles. Intensities of IV-V (felt by most people/minor damage) were reported as far away as Cold Bay, Bethel, McGrath, Kotzebue, Deadhorse, Ft. Yukon, Eagle and Skagway.