Monday, August 21, 1978 at 11:24 AM
1978-08-21 03:24 UTC · 3.488°, 126.647°
Magnitude
5.0 mb
Strong
Depth
70 km
Intermediate
Energy
477 tons of TNT
Gutenberg–Richter
Coordinates
3.488°, 126.647°
Felt reports
—
Tsunami
No
Source
USGS
Region
Celebes Sea
Can cause damage to buildings and infrastructure near the epicentre.
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 Strong range of the moment magnitude scale.
Nearest mapped structure: Philippine Trench (~193 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 16/100 (low).
Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.