Sunday, October 29, 1978 at 12:30 AM
1978-10-28 16:30 UTC · 50.246°, 155.692°
Magnitude
5.5 mb
Strong
Depth
135 km
Intermediate
Energy
2.7 kilotons of TNT
Gutenberg–Richter
Coordinates
50.246°, 155.692°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause damage to buildings and infrastructure near the epicentre.
At 135 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 Strong range of the moment magnitude scale.
Nearest mapped structure: Manila Trench (~4474 km away). Last major event: 1934 Manila Trench Earthquake.
Area seismic-hazard score: 8/100 (low).
3 recorded M4.0+ events within 270 km in the 90 days after this earthquake.
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.