M5.5 earthquake 34 km ENE of Bacolod, Philippines
A magnitude 5.5 earthquake struck 34 km ENE of Bacolod, Philippines on Sun, Jul 31, 1966, 1:39 AM GMT+8 (17:39 UTC), 50 km (31 mi) below the surface.
A larger quake followed: M6.0 28 km ENE of Hinatuan, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1966-07-30 17:39:22 UTC
- Depth
- 49.5 km (30.8 mi), shallow
- Epicenter
- 9.048° N, 126.577° E
- Region
- Philippines
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
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
- ±0.25
- 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 0 in the 30 days before it.
After
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem845950. Read Wed, Sep 23, 2026, 1:51 AM UTC.