Saturday, March 28, 1964 at 3:10 PM
1964-03-28 07:10 UTC ยท 58.784ยฐ, -149.391ยฐ
Magnitude
6.4 mw
Major
Depth
20 km
Shallow
Energy
52.3 kilotons of TNT
GutenbergโRichter
Coordinates
58.784ยฐ, -149.391ยฐ
Felt reports
โ
Tsunami
No
Source
USGS
Region
โ
Can cause serious damage over larger areas.
At 20 km this was a shallow earthquake. Shallow quakes concentrate shaking near the epicentre and tend to be the most damaging.
This event sits in the Major range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~8235 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
20 recorded M4.0+ events within 304 km in the 90 days after this earthquake.
No other recent earthquakes nearby.
Browse all earthquakes โData from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.