M4.0 earthquake 6 km NE of Surup, Philippines
A magnitude 4.0 earthquake struck 6 km NE of Surup, Philippines on Sun, Aug 13, 1978, 9:11 PM GMT+8 (13:11 UTC), 147 km (91 mi) below the surface.
A larger quake followed: M5.0 73 km SE of Lukatan, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1978-08-13 13:11:56 UTC
- Depth
- 147.0 km (91.3 mi), intermediate-depth
- Epicenter
- 6.431° N, 126.182° 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
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.073 km SE of Lukatan, Philippines · 17571 days ago · 78 km deep · 87 km away
- 5.775 km ESE of Caburan, Philippines · 17564 days ago · 44 km deep · 96 km away
- 5.771 km ESE of Bobon, Philippines · 17554 days ago · 61 km deep · 81 km away
- 4.936 km SSW of Pondaguitan, Philippines · 17530 days ago · 131 km deep · 44 km away
- 5.231 km E of Lamitan, Philippines · 17528 days ago · 54 km deep · 47 km away
- 5.117 km E of Mangili, Philippines · 17518 days ago · 138 km deep · 62 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000w1j. Read Tue, Sep 22, 2026, 3:13 PM UTC.