Monday, August 18, 1969 at 4:15 AM
1969-08-17 20:15 UTC · 24.875°, -109.663°
Magnitude
6.7 mw
Major
Depth
30 km
Shallow
Energy
169.2 kilotons of TNT
Gutenberg–Richter
Coordinates
24.875°, -109.663°
Felt reports
—
Tsunami
No
Source
USGS
Region
—
Can cause serious damage over larger areas.
At 30 km this was a shallow earthquake. Shallow quakes concentrate shaking near the epicentre and tend to be the most damaging.
This event sits in the Major range of the moment magnitude scale.
Nearest mapped structure: Casiguran Fault (~12770 km away). Last major event: 1968 Casiguran Earthquake (M7.3).
Area seismic-hazard score: 8/100 (low).
8 recorded M4.0+ events within 318 km in the 90 days after this earthquake.
No other recent earthquakes nearby.
Browse all earthquakes →Data from USGS. Magnitudes and locations are preliminary and may be revised. For official information consult PHIVOLCS / USGS.