1964 Alaska earthquake Fourth Avenue in Anchorage, Alaska,
looking east from near Barrow Street. The southern edge of one
of several landslides in Anchorage, this one covered an area of
over a dozen blocks, including 5 blocks along the north side of
Fourth Avenue. Most of the area was razed and made an urban
renewal district. |Date||27 March 1964 (AKST)| |Depth||14 miles
(23 km)| |Countries or regions||United States| |Total
damage||$311 million| |Max. intensity||XI: Extreme| |Peak
acceleration||0.18 g| The 1964 Alaskan earthquake, also known as
the Great Alaskan Earthquake, the Portage Earthquake and the
Good Friday Earthquake, was a megathrust earthquake that began
at 5:36 P.M. AST on Good Friday, March 27, 1964. Across south-
central Alaska, ground fissures, collapsing structures, and
tsunamis resulting from the earthquake caused about 143 deaths.
Lasting nearly three minutes, it was the most powerful recorded
earthquake in U.S. and North American history, and the second
most powerful ever measured by seismo