M5.5 earthquake 101 km E of Pondaguitan, Philippines
A magnitude 5.5 earthquake struck 101 km E of Pondaguitan, Philippines on Sun, Oct 5, 1975, 11:31 PM GMT+8 (15:31 UTC), 66 km (41 mi) below the surface.
A larger quake followed: M6.1 64 km ESE of Bobon, 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 (mb), moderate
- Local time
- UTC
- 1975-10-05 15:31:12 UTC
- Depth
- 66.0 km (41.0 mi), shallow
- Epicenter
- 6.238° N, 127.087° 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.
- Stations used
- 94
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 2 in the 30 days before it.
After
- 6.164 km ESE of Bobon, Philippines · 18599 days ago · 50 km deep · 47 km away
- 5.760 km SE of Lukatan, Philippines · 18586 days ago · 97 km deep · 54 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000d21 (also filed as iscgem722563). Read Sun, Sep 27, 2026, 3:34 AM UTC.