M5.4 earthquake 17 km W of Gadung, Philippines
A magnitude 5.4 earthquake struck 17 km W of Gadung, Philippines on Tue, Oct 31, 1978, 7:21 PM GMT+8 (11:21 UTC), 554 km (344 mi) below the surface.
A larger quake followed: M6.9 15 km SSE of Malim, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mb), moderate
- Local time
- UTC
- 1978-10-31 11:21:01 UTC
- Depth
- 554.0 km (344.2 mi), deep
- Epicenter
- 6.807° N, 123.863° 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
- 129
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.714 km S of Litayan, Philippines · 17482 days ago · 33 km deep · 47 km away
- 6.915 km SSE of Malim, Philippines · 17451 days ago · 33 km deep · 71 km away
- 4.837 km SSW of Panubigan, Philippines · 17451 days ago · 33 km deep · 75 km away
- 4.45 km NE of Malim, Philippines · 17451 days ago · 33 km deep · 87 km away
- 4.863 km W of Bantogon, Philippines · 17449 days ago · 43 km deep · 58 km away
- 5.116 km W of Bantogon, Philippines · 17443 days ago · 44 km deep · 30 km away
- 4.221 km W of Sangay, Philippines · 17443 days ago · 52 km deep · 44 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000x71 (also filed as gcmtb103178a, gcmt19781031112101, iscgem676066). Read Tue, Sep 22, 2026, 3:33 PM UTC.