Monday, September 30, 1968 at 10:15 PM
1968-09-30 14:15 UTC · 3.080°, 128.176°
Magnitude
5.5 mw
Strong
Depth
161 km
Intermediate
Energy
3.0 kilotons of TNT
Gutenberg–Richter
Coordinates
3.080°, 128.176°
Felt reports
—
Tsunami
No
Source
USGS
Region
Philippine Sea
Can cause damage to buildings and infrastructure near the epicentre.
At 161 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 (~226 km away). Last major event: 2012 Samar Earthquake (M7.6).
Area seismic-hazard score: 12/100 (low).
4 recorded M4.0+ events within 271 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.