M6.4 earthquake 56 km ESE of Suklayin, Philippines
A magnitude 6.4 earthquake struck 56 km ESE of Suklayin, Philippines on Thu, Aug 29, 1968, 4:42 AM GMT+8 (20:42 UTC), 18 km (11 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.4 (mw), strong
- Local time
- UTC
- 1968-08-28 20:42:19 UTC
- Depth
- 18.1 km (11.2 mi), shallow
- Epicenter
- 15.508° N, 122.012° E
- Region
- Philippines
- Strongest shaking
- V, moderate shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate shaking
- Peak ground acceleration
- 8.0% of gravity
- Peak ground velocity
- 2.1 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.42
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 2 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.627 km NE of Suklayin, Philippines · 21208 days ago · 28 km deep · 58 km away
- 5.740 km E of Suklayin, Philippines · 21184 days ago · 21 km deep · 28 km away
Before
- 5.743 km NNE of Casuguran, Philippines · 21224 days ago · 19 km deep · 69 km away
- 5.817 km SSE of Suklayin, Philippines · 21227 days ago · 32 km deep · 43 km away
- 5.739 km E of Suklayin, Philippines · 21232 days ago · 19 km deep · 24 km away
- 7.628 km SE of Minuri, Philippines · 21236 days ago · 31 km deep · 97 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem818415 (also filed as atlas19680828204218). Read Tue, Sep 22, 2026, 8:25 PM UTC.