All earthquakesAlaska

Alaska earthquakes in 1928

11 earthquakes of magnitude 2.5 or more were located in Alaska in 1928. The largest: M7.0 52 km NE of Chenega, Alaska, Jun 21, 1928.

From the USGS catalog. Times are local to each quake.

19271929

Map

Where every quake of 1928 was located in Alaska. Select one for its page.

Open the live map with earthquakes

Every quake of 1928

Magnitude 2.5 and up, newest first.

Month by month

Counted by UTC date, which is how the catalog files them.

MonthQuakesLargestWhere
January 19280
February 192825.9south of the Aleutian Islands
March 19280
April 192835.878 km SSE of Adak, Alaska
May 192825.7131 km WSW of Adak, Alaska
June 192817.052 km NE of Chenega, Alaska
July 19280
August 19280
September 19280
October 19280
November 192836.0223 km SSW of Akhiok, Alaska
December 19280

What this means

The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.

By year

Every year the USGS catalog covers.

Nearby

Alaska nowWorldwide in 1928

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.