M5.7 earthquake 43 km NNE of Casuguran, Philippines
A magnitude 5.7 earthquake struck 43 km NNE of Casuguran, Philippines on Wed, Aug 14, 1968, 3:56 PM GMT+8 (07:56 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M6.4 56 km ESE of Suklayin, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mw), moderate
- Local time
- UTC
- 1968-08-14 07:56:38 UTC
- Depth
- 19.0 km (11.8 mi), shallow
- Epicenter
- 15.092° N, 122.484° 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
- 5.8% of gravity
- Peak ground velocity
- 1.4 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
- ±0.26
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.7 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.456 km ESE of Suklayin, Philippines · 21216 days ago · 18 km deep · 69 km away
- 5.740 km E of Suklayin, Philippines · 21191 days ago · 21 km deep · 94 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem818002. Read Tue, Sep 29, 2026, 4:50 PM UTC.