All earthquakesAlaska

Alaska earthquakes in 1906

5 earthquakes of magnitude 2.5 or more were located in Alaska in 1906. The largest: M8.3 1906 Western Aleutian Islands (Hawadax/Rat Islands) Earthquake, Aug 17, 1906.

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

19051907

Map

Where every quake of 1906 was located in Alaska. Select one for its page.

Open the live map with earthquakes

Every quake of 1906

Magnitude 2.5 and up, newest first.

Month by month

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

MonthQuakesLargestWhere
January 190626.9182 km SSE of Atka, Alaska
February 19060
March 19060
April 19060
May 19060
June 19060
July 19060
August 190618.31906 Western Aleutian Islands (Hawadax/Rat Islands) Earthquake
September 19060
October 19060
November 19060
December 190627.0153 km SE of Halibut Cove, Alaska

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 1906

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.