M5.6 earthquake 26 km W of Gadung, Philippines
A magnitude 5.6 earthquake struck 26 km W of Gadung, Philippines on Tue, Apr 4, 1978, 2:56 PM GMT+8 (06:56 UTC), 43 km (27 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.6 (mb), moderate
- Local time
- UTC
- 1978-04-04 06:56:06 UTC
- Depth
- 43.0 km (26.7 mi), shallow
- Epicenter
- 6.783° N, 123.783° E
- Region
- Philippines
- Strongest shaking
- IV, light 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
- IV, light shaking
- Peak ground acceleration
- 3.5% of gravity
- Peak ground velocity
- 0.8 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.
- Stations used
- 108
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.324 km W of Gadung, Philippines · 17703 days ago · 46 km deep · 2 km away
- 4.227 km SE of Malim, Philippines · 17689 days ago · 46 km deep · 57 km away
- 5.47 km WSW of Sangay, Philippines · 17682 days ago · 33 km deep · 47 km away
- 4.533 km W of Sangay, Philippines · 17682 days ago · 33 km deep · 42 km away
- 5.023 km WSW of Sangay, Philippines · 17682 days ago · 43 km deep · 51 km away
- 4.59 km NNE of Gadung, Philippines · 17668 days ago · 563 km deep · 31 km away
- 5.355 km WSW of Sangay, Philippines · 17656 days ago · 572 km deep · 70 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000tx5 (also filed as gcmtb040478b, gcmt19780404065606, atlas19780404065606, iscgem683259). Read Tue, Sep 22, 2026, 6:06 AM UTC.