Thursday, September 29, 1921 at 9:09 PM
1921-09-29 13:09 UTC · 48.628°, 154.409°
Magnitude
6.1 mw
Major
Depth
70 km
Intermediate
Energy
23.6 kilotons of TNT
Gutenberg–Richter
Coordinates
48.628°, 154.409°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 70 km this was a intermediate earthquake. Intermediate-depth quakes spread shaking over a wider area but are usually less destructive at the surface.
This event sits in the Major range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~4302 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.