Thursday, April 13, 1978 at 1:18 PM
1978-04-13 05:18 UTC · 3.311°, 127.760°
Magnitude
5.5 mb
Strong
Depth
98 km
Intermediate
Energy
2.7 kilotons of TNT
Gutenberg–Richter
Coordinates
3.311°, 127.760°
Felt reports
—
Tsunami
No
Source
USGS
Region
Philippine Sea
Can cause damage to buildings and infrastructure near the epicentre.
At 98 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 (~190 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 16/100 (low).
8 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.