M 5.4 - 70 km SSE of Adak, Alaska

  • 2025-03-20 05:13:07 (UTC)
  • 51.295°N 176.227°W
  • 35.0 km depth

ShakeMap

 Contributed by US last updated 2025-03-21 05:29:55 (UTC)
  • The data below are the most preferred data available
  • The data below have NOT been reviewed by a scientist.
Version 5

Peak Spectral Acceleration for 0.3 s, 1.0 s, 3.0 s

0.3 s PSA (%g)

Marker
0.2 %g
1 %g
5 %g
50 km
30 mi
ShakeMap intensity legend

1.0 s PSA (%g)

Marker
0.1 %g
0.5 %g
50 km
30 mi
ShakeMap intensity legend

3.0 s PSA (%g)

Marker
0.01 %g
0.05 %g
50 km
30 mi
ShakeMap intensity legend